diff options
128 files changed, 1075 insertions, 1058 deletions
@@ -204,6 +204,9 @@ ifeq ($(ARCH),x86_64) endif # Additional ARCH settings for sparc +ifeq ($(ARCH),sparc32) + SRCARCH := sparc +endif ifeq ($(ARCH),sparc64) SRCARCH := sparc endif diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c index 6b1852f..39e534f 100644 --- a/arch/ia64/kernel/perfmon.c +++ b/arch/ia64/kernel/perfmon.c @@ -618,16 +618,15 @@ pfm_get_unmapped_area(struct file *file, unsigned long addr, unsigned long len, } -static int -pfmfs_get_sb(struct file_system_type *fs_type, int flags, const char *dev_name, void *data, - struct vfsmount *mnt) +static struct dentry * +pfmfs_mount(struct file_system_type *fs_type, int flags, const char *dev_name, void *data) { - return get_sb_pseudo(fs_type, "pfm:", NULL, PFMFS_MAGIC, mnt); + return mount_pseudo(fs_type, "pfm:", NULL, PFMFS_MAGIC); } static struct file_system_type pfm_fs_type = { .name = "pfmfs", - .get_sb = pfmfs_get_sb, + .mount = pfmfs_mount, .kill_sb = kill_anon_super, }; diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c index 5dec408..3532b92 100644 --- a/arch/powerpc/platforms/cell/spufs/inode.c +++ b/arch/powerpc/platforms/cell/spufs/inode.c @@ -798,17 +798,17 @@ spufs_fill_super(struct super_block *sb, void *data, int silent) return spufs_create_root(sb, data); } -static int -spufs_get_sb(struct file_system_type *fstype, int flags, - const char *name, void *data, struct vfsmount *mnt) +static struct dentry * +spufs_mount(struct file_system_type *fstype, int flags, + const char *name, void *data) { - return get_sb_single(fstype, flags, data, spufs_fill_super, mnt); + return mount_single(fstype, flags, data, spufs_fill_super); } static struct file_system_type spufs_type = { .owner = THIS_MODULE, .name = "spufs", - .get_sb = spufs_get_sb, + .mount = spufs_mount, .kill_sb = kill_litter_super, }; diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c index 74d9867..47cc446 100644 --- a/arch/s390/hypfs/inode.c +++ b/arch/s390/hypfs/inode.c @@ -316,10 +316,10 @@ static int hypfs_fill_super(struct super_block *sb, void *data, int silent) return 0; } -static int hypfs_get_super(struct file_system_type *fst, int flags, - const char *devname, void *data, struct vfsmount *mnt) +static struct dentry *hypfs_mount(struct file_system_type *fst, int flags, + const char *devname, void *data) { - return get_sb_single(fst, flags, data, hypfs_fill_super, mnt); + return mount_single(fst, flags, data, hypfs_fill_super); } static void hypfs_kill_super(struct super_block *sb) @@ -455,7 +455,7 @@ static const struct file_operations hypfs_file_ops = { static struct file_system_type hypfs_type = { .owner = THIS_MODULE, .name = "s390_hypfs", - .get_sb = hypfs_get_super, + .mount = hypfs_mount, .kill_sb = hypfs_kill_super }; diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index a9aaed3..45d9c87 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -22,8 +22,6 @@ config SPARC select RTC_CLASS select RTC_DRV_M48T59 select HAVE_IRQ_WORK - select HAVE_PERF_EVENTS - select PERF_USE_VMALLOC select HAVE_DMA_ATTRS select HAVE_DMA_API_DEBUG select HAVE_ARCH_JUMP_LABEL @@ -50,7 +48,6 @@ config SPARC64 select RTC_DRV_BQ4802 select RTC_DRV_SUN4V select RTC_DRV_STARFIRE - select HAVE_IRQ_WORK select HAVE_PERF_EVENTS select PERF_USE_VMALLOC diff --git a/arch/sparc/include/asm/jump_label.h b/arch/sparc/include/asm/jump_label.h index 62e66d7..65c0d30 100644 --- a/arch/sparc/include/asm/jump_label.h +++ b/arch/sparc/include/asm/jump_label.h @@ -4,7 +4,6 @@ #ifdef __KERNEL__ #include <linux/types.h> -#include <asm/system.h> #define JUMP_LABEL_NOP_SIZE 4 diff --git a/arch/sparc/kernel/irq_32.c b/arch/sparc/kernel/irq_32.c index 0116d8d..5ad6e5c 100644 --- a/arch/sparc/kernel/irq_32.c +++ b/arch/sparc/kernel/irq_32.c @@ -365,7 +365,7 @@ static int request_fast_irq(unsigned int irq, unsigned long flags; unsigned int cpu_irq; int ret; -#ifdef CONFIG_SMP +#if defined CONFIG_SMP && !defined CONFIG_SPARC_LEON struct tt_entry *trap_table; extern struct tt_entry trapbase_cpu1, trapbase_cpu2, trapbase_cpu3; #endif @@ -425,7 +425,7 @@ static int request_fast_irq(unsigned int irq, table[SP_TRAP_IRQ1+(cpu_irq-1)].inst_four = SPARC_NOP; INSTANTIATE(sparc_ttable) -#ifdef CONFIG_SMP +#if defined CONFIG_SMP && !defined CONFIG_SPARC_LEON trap_table = &trapbase_cpu1; INSTANTIATE(trap_table) trap_table = &trapbase_cpu2; INSTANTIATE(trap_table) trap_table = &trapbase_cpu3; INSTANTIATE(trap_table) diff --git a/arch/sparc/kernel/leon_smp.c b/arch/sparc/kernel/leon_smp.c index e1656fc..7524689 100644 --- a/arch/sparc/kernel/leon_smp.c +++ b/arch/sparc/kernel/leon_smp.c @@ -56,8 +56,8 @@ void __init leon_configure_cache_smp(void); static inline unsigned long do_swap(volatile unsigned long *ptr, unsigned long val) { - __asm__ __volatile__("swapa [%1] %2, %0\n\t" : "=&r"(val) - : "r"(ptr), "i"(ASI_LEON_DCACHE_MISS) + __asm__ __volatile__("swapa [%2] %3, %0\n\t" : "=&r"(val) + : "0"(val), "r"(ptr), "i"(ASI_LEON_DCACHE_MISS) : "memory"); return val; } diff --git a/arch/sparc/kernel/rtrap_32.S b/arch/sparc/kernel/rtrap_32.S index 4da2e1f..5f5f74c 100644 --- a/arch/sparc/kernel/rtrap_32.S +++ b/arch/sparc/kernel/rtrap_32.S @@ -78,9 +78,9 @@ signal_p: call do_notify_resume add %sp, STACKFRAME_SZ, %o0 ! pt_regs ptr - /* Fall through. */ - ld [%sp + STACKFRAME_SZ + PT_PSR], %t_psr - clr %l6 + b signal_p + ld [%curptr + TI_FLAGS], %g2 + ret_trap_continue: sethi %hi(PSR_SYSCALL), %g1 andn %t_psr, %g1, %t_psr diff --git a/arch/sparc/kernel/rtrap_64.S b/arch/sparc/kernel/rtrap_64.S index 090b9e9..77f1b95 100644 --- a/arch/sparc/kernel/rtrap_64.S +++ b/arch/sparc/kernel/rtrap_64.S @@ -34,37 +34,9 @@ __handle_preemption: __handle_user_windows: call fault_in_user_windows wrpr %g0, RTRAP_PSTATE, %pstate - wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate - /* Redo sched+sig checks */ - ldx [%g6 + TI_FLAGS], %l0 - andcc %l0, _TIF_NEED_RESCHED, %g0 - - be,pt %xcc, 1f - nop - call schedule - wrpr %g0, RTRAP_PSTATE, %pstate - wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate - ldx [%g6 + TI_FLAGS], %l0 - -1: andcc %l0, _TIF_DO_NOTIFY_RESUME_MASK, %g0 - be,pt %xcc, __handle_user_windows_continue - nop - mov %l5, %o1 - add %sp, PTREGS_OFF, %o0 - mov %l0, %o2 - - call do_notify_resume - wrpr %g0, RTRAP_PSTATE, %pstate - wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate - /* Signal delivery can modify pt_regs tstate, so we must - * reload it. - */ - ldx [%sp + PTREGS_OFF + PT_V9_TSTATE], %l1 - sethi %hi(0xf << 20), %l4 - and %l1, %l4, %l4 - ba,pt %xcc, __handle_user_windows_continue + ba,pt %xcc, __handle_preemption_continue + wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate - andn %l1, %l4, %l1 __handle_userfpu: rd %fprs, %l5 andcc %l5, FPRS_FEF, %g0 @@ -87,7 +59,7 @@ __handle_signal: ldx [%sp + PTREGS_OFF + PT_V9_TSTATE], %l1 sethi %hi(0xf << 20), %l4 and %l1, %l4, %l4 - ba,pt %xcc, __handle_signal_continue + ba,pt %xcc, __handle_preemption_continue andn %l1, %l4, %l1 /* When returning from a NMI (%pil==15) interrupt we want to @@ -177,11 +149,9 @@ __handle_preemption_continue: bne,pn %xcc, __handle_preemption andcc %l0, _TIF_DO_NOTIFY_RESUME_MASK, %g0 bne,pn %xcc, __handle_signal -__handle_signal_continue: ldub [%g6 + TI_WSAVED], %o2 brnz,pn %o2, __handle_user_windows nop -__handle_user_windows_continue: sethi %hi(TSTATE_PEF), %o0 andcc %l1, %o0, %g0 diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c index bd86016..5b836f5 100644 --- a/arch/sparc/mm/fault_32.c +++ b/arch/sparc/mm/fault_32.c @@ -539,6 +539,12 @@ do_sigbus: __do_fault_siginfo(BUS_ADRERR, SIGBUS, tsk->thread.kregs, address); } +static void check_stack_aligned(unsigned long sp) +{ + if (sp & 0x7UL) + force_sig(SIGILL, current); +} + void window_overflow_fault(void) { unsigned long sp; @@ -547,6 +553,8 @@ void window_overflow_fault(void) if(((sp + 0x38) & PAGE_MASK) != (sp & PAGE_MASK)) force_user_fault(sp + 0x38, 1); force_user_fault(sp, 1); + + check_stack_aligned(sp); } void window_underflow_fault(unsigned long sp) @@ -554,6 +562,8 @@ void window_underflow_fault(unsigned long sp) if(((sp + 0x38) & PAGE_MASK) != (sp & PAGE_MASK)) force_user_fault(sp + 0x38, 0); force_user_fault(sp, 0); + + check_stack_aligned(sp); } void window_ret_fault(struct pt_regs *regs) @@ -564,4 +574,6 @@ void window_ret_fault(struct pt_regs *regs) if(((sp + 0x38) & PAGE_MASK) != (sp & PAGE_MASK)) force_user_fault(sp + 0x38, 0); force_user_fault(sp, 0); + + check_stack_aligned(sp); } diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c index af06001..82bbb59 100644 --- a/drivers/base/devtmpfs.c +++ b/drivers/base/devtmpfs.c @@ -29,33 +29,33 @@ static struct vfsmount *dev_mnt; #if defined CONFIG_DEVTMPFS_MOUNT -static int dev_mount = 1; +static int mount_dev = 1; #else -static int dev_mount; +static int mount_dev; #endif static DEFINE_MUTEX(dirlock); static int __init mount_param(char *str) { - dev_mount = simple_strtoul(str, NULL, 0); + mount_dev = simple_strtoul(str, NULL, 0); return 1; } __setup("devtmpfs.mount=", mount_param); -static int dev_get_sb(struct file_system_type *fs_type, int flags, - const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *dev_mount(struct file_system_type *fs_type, int flags, + const char *dev_name, void *data) { #ifdef CONFIG_TMPFS - return get_sb_single(fs_type, flags, data, shmem_fill_super, mnt); + return mount_single(fs_type, flags, data, shmem_fill_super); #else - return get_sb_single(fs_type, flags, data, ramfs_fill_super, mnt); + return mount_single(fs_type, flags, data, ramfs_fill_super); #endif } static struct file_system_type dev_fs_type = { .name = "devtmpfs", - .get_sb = dev_get_sb, + .mount = dev_mount, .kill_sb = kill_litter_super, }; @@ -351,7 +351,7 @@ int devtmpfs_mount(const char *mntdir) { int err; - if (!dev_mount) + if (!mount_dev) return 0; if (!dev_mnt) diff --git a/drivers/ide/hpt366.c b/drivers/ide/hpt366.c index 97d98fb..58c51cd 100644 --- a/drivers/ide/hpt366.c +++ b/drivers/ide/hpt366.c @@ -838,7 +838,7 @@ static void hpt3xxn_set_clock(ide_hwif_t *hwif, u8 mode) static void hpt3xxn_rw_disk(ide_drive_t *drive, struct request *rq) { - hpt3xxn_set_clock(drive->hwif, rq_data_dir(rq) ? 0x23 : 0x21); + hpt3xxn_set_clock(drive->hwif, rq_data_dir(rq) ? 0x21 : 0x23); } /** @@ -1173,8 +1173,9 @@ static u8 hpt3xx_cable_detect(ide_hwif_t *hwif) u16 mcr; pci_read_config_word(dev, mcr_addr, &mcr); - pci_write_config_word(dev, mcr_addr, (mcr | 0x8000)); - /* now read cable id register */ + pci_write_config_word(dev, mcr_addr, mcr | 0x8000); + /* Debounce, then read cable ID register */ + udelay(10); pci_read_config_byte(dev, 0x5a, &scr1); pci_write_config_word(dev, mcr_addr, mcr); } else if (chip_type >= HPT370) { @@ -1185,10 +1186,11 @@ static u8 hpt3xx_cable_detect(ide_hwif_t *hwif) u8 scr2 = 0; pci_read_config_byte(dev, 0x5b, &scr2); - pci_write_config_byte(dev, 0x5b, (scr2 & ~1)); - /* now read cable id register */ + pci_write_config_byte(dev, 0x5b, scr2 & ~1); + /* Debounce, then read cable ID register */ + udelay(10); pci_read_config_byte(dev, 0x5a, &scr1); - pci_write_config_byte(dev, 0x5b, scr2); + pci_write_config_byte(dev, 0x5b, scr2); } else pci_read_config_byte(dev, 0x5a, &scr1); diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c index 06b14bc..d413690 100644 --- a/drivers/ide/ide-dma.c +++ b/drivers/ide/ide-dma.c @@ -449,7 +449,6 @@ ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error) ide_hwif_t *hwif = drive->hwif; const struct ide_dma_ops *dma_ops = hwif->dma_ops; struct ide_cmd *cmd = &hwif->cmd; - struct request *rq; ide_startstop_t ret = ide_stopped; /* @@ -487,14 +486,10 @@ ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error) ide_dma_off_quietly(drive); /* - * un-busy drive etc and make sure request is sane + * make sure request is sane */ - rq = hwif->rq; - if (rq) { - hwif->rq = NULL; - rq->errors = 0; - ide_requeue_and_plug(drive, rq); - } + if (hwif->rq) + hwif->rq->errors = 0; return ret; } diff --git a/drivers/infiniband/hw/ipath/ipath_fs.c b/drivers/infiniband/hw/ipath/ipath_fs.c index 12d5bf7..8c8afc7 100644 --- a/drivers/infiniband/hw/ipath/ipath_fs.c +++ b/drivers/infiniband/hw/ipath/ipath_fs.c @@ -362,13 +362,13 @@ bail: return ret; } -static int ipathfs_get_sb(struct file_system_type *fs_type, int flags, - const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *ipathfs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - int ret = get_sb_single(fs_type, flags, data, - ipathfs_fill_super, mnt); - if (ret >= 0) - ipath_super = mnt->mnt_sb; + struct dentry *ret; + ret = mount_single(fs_type, flags, data, ipathfs_fill_super); + if (!IS_ERR(ret)) + ipath_super = ret->d_sb; return ret; } @@ -411,7 +411,7 @@ bail: static struct file_system_type ipathfs_fs_type = { .owner = THIS_MODULE, .name = "ipathfs", - .get_sb = ipathfs_get_sb, + .mount = ipathfs_mount, .kill_sb = ipathfs_kill_super, }; diff --git a/drivers/infiniband/hw/qib/qib_fs.c b/drivers/infiniband/hw/qib/qib_fs.c index 7e433d7..f99bddc 100644 --- a/drivers/infiniband/hw/qib/qib_fs.c +++ b/drivers/infiniband/hw/qib/qib_fs.c @@ -555,13 +555,13 @@ bail: return ret; } -static int qibfs_get_sb(struct file_system_type *fs_type, int flags, - const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *qibfs_mount(struct file_system_type *fs_type, int flags, + const char *dev_name, void *data) { - int ret = get_sb_single(fs_type, flags, data, - qibfs_fill_super, mnt); - if (ret >= 0) - qib_super = mnt->mnt_sb; + struct dentry *ret; + ret = mount_single(fs_type, flags, data, qibfs_fill_super); + if (!IS_ERR(ret)) + qib_super = ret->d_sb; return ret; } @@ -603,7 +603,7 @@ int qibfs_remove(struct qib_devdata *dd) static struct file_system_type qibfs_fs_type = { .owner = THIS_MODULE, .name = "ipathfs", - .get_sb = qibfs_get_sb, + .mount = qibfs_mount, .kill_sb = qibfs_kill_super, }; diff --git a/drivers/isdn/capi/capifs.c b/drivers/isdn/capi/capifs.c index 2b83850..b4faed7 100644 --- a/drivers/isdn/capi/capifs.c +++ b/drivers/isdn/capi/capifs.c @@ -125,16 +125,16 @@ fail: return -ENOMEM; } -static int capifs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *capifs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_single(fs_type, flags, data, capifs_fill_super, mnt); + return mount_single(fs_type, flags, data, capifs_fill_super); } static struct file_system_type capifs_fs_type = { .owner = THIS_MODULE, .name = "capifs", - .get_sb = capifs_get_sb, + .mount = capifs_mount, .kill_sb = kill_anon_super, }; diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index e4fb58d..5a1ffe3 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -212,7 +212,7 @@ static struct page *read_sb_page(mddev_t *mddev, loff_t offset, target = rdev->sb_start + offset + index * (PAGE_SIZE/512); - if (sync_page_io(rdev->bdev, target, + if (sync_page_io(rdev, target, roundup(size, bdev_logical_block_size(rdev->bdev)), page, READ)) { page->index = index; @@ -343,7 +343,7 @@ static void write_page(struct bitmap *bitmap, struct page *page, int wait) atomic_inc(&bitmap->pending_writes); set_buffer_locked(bh); set_buffer_mapped(bh); - submit_bh(WRITE, bh); + submit_bh(WRITE | REQ_UNPLUG | REQ_SYNC, bh); bh = bh->b_this_page; } @@ -1101,7 +1101,7 @@ static void bitmap_count_page(struct bitmap *bitmap, sector_t offset, int inc) bitmap_checkfree(bitmap, page); } static bitmap_counter_t *bitmap_get_counter(struct bitmap *bitmap, - sector_t offset, int *blocks, + sector_t offset, sector_t *blocks, int create); /* @@ -1115,7 +1115,7 @@ void bitmap_daemon_work(mddev_t *mddev) unsigned long j; unsigned long flags; struct page *page = NULL, *lastpage = NULL; - int blocks; + sector_t blocks; void *paddr; struct dm_dirty_log *log = mddev->bitmap_info.log; @@ -1258,7 +1258,7 @@ void bitmap_daemon_work(mddev_t *mddev) } static bitmap_counter_t *bitmap_get_counter(struct bitmap *bitmap, - sector_t offset, int *blocks, + sector_t offset, sector_t *blocks, int create) __releases(bitmap->lock) __acquires(bitmap->lock) @@ -1316,7 +1316,7 @@ int bitmap_startwrite(struct bitmap *bitmap, sector_t offset, unsigned long sect } while (sectors) { - int blocks; + sector_t blocks; bitmap_counter_t *bmc; spin_lock_irq(&bitmap->lock); @@ -1381,7 +1381,7 @@ void bitmap_endwrite(struct bitmap *bitmap, sector_t offset, unsigned long secto success = 0; while (sectors) { - int blocks; + sector_t blocks; unsigned long flags; bitmap_counter_t *bmc; @@ -1423,7 +1423,7 @@ void bitmap_endwrite(struct bitmap *bitmap, sector_t offset, unsigned long secto } EXPORT_SYMBOL(bitmap_endwrite); -static int __bitmap_start_sync(struct bitmap *bitmap, sector_t offset, int *blocks, +static int __bitmap_start_sync(struct bitmap *bitmap, sector_t offset, sector_t *blocks, int degraded) { bitmap_counter_t *bmc; @@ -1452,7 +1452,7 @@ static int __bitmap_start_sync(struct bitmap *bitmap, sector_t offset, int *bloc return rv; } -int bitmap_start_sync(struct bitmap *bitmap, sector_t offset, int *blocks, +int bitmap_start_sync(struct bitmap *bitmap, sector_t offset, sector_t *blocks, int degraded) { /* bitmap_start_sync must always report on multiples of whole @@ -1463,7 +1463,7 @@ int bitmap_start_sync(struct bitmap *bitmap, sector_t offset, int *blocks, * Return the 'or' of the result. */ int rv = 0; - int blocks1; + sector_t blocks1; *blocks = 0; while (*blocks < (PAGE_SIZE>>9)) { @@ -1476,7 +1476,7 @@ int bitmap_start_sync(struct bitmap *bitmap, sector_t offset, int *blocks, } EXPORT_SYMBOL(bitmap_start_sync); -void bitmap_end_sync(struct bitmap *bitmap, sector_t offset, int *blocks, int aborted) +void bitmap_end_sync(struct bitmap *bitmap, sector_t offset, sector_t *blocks, int aborted) { bitmap_counter_t *bmc; unsigned long flags; @@ -1515,7 +1515,7 @@ void bitmap_close_sync(struct bitmap *bitmap) * RESYNC bit wherever it is still on */ sector_t sector = 0; - int blocks; + sector_t blocks; if (!bitmap) return; while (sector < bitmap->mddev->resync_max_sectors) { @@ -1528,7 +1528,7 @@ EXPORT_SYMBOL(bitmap_close_sync); void bitmap_cond_end_sync(struct bitmap *bitmap, sector_t sector) { sector_t s = 0; - int blocks; + sector_t blocks; if (!bitmap) return; @@ -1562,7 +1562,7 @@ static void bitmap_set_memory_bits(struct bitmap *bitmap, sector_t offset, int n * be 0 at this point */ - int secs; + sector_t secs; bitmap_counter_t *bmc; spin_lock_irq(&bitmap->lock); bmc = bitmap_get_counter(bitmap, offset, &secs, 1); @@ -1790,7 +1790,7 @@ int bitmap_load(mddev_t *mddev) * All chunks should be clean, but some might need_sync. */ while (sector < mddev->resync_max_sectors) { - int blocks; + sector_t blocks; bitmap_start_sync(bitmap, sector, &blocks, 0); sector += blocks; } diff --git a/drivers/md/bitmap.h b/drivers/md/bitmap.h index e872a7b..931a7a7 100644 --- a/drivers/md/bitmap.h +++ b/drivers/md/bitmap.h @@ -271,8 +271,8 @@ int bitmap_startwrite(struct bitmap *bitmap, sector_t offset, unsigned long sectors, int behind); void bitmap_endwrite(struct bitmap *bitmap, sector_t offset, unsigned long sectors, int success, int behind); -int bitmap_start_sync(struct bitmap *bitmap, sector_t offset, int *blocks, int degraded); -void bitmap_end_sync(struct bitmap *bitmap, sector_t offset, int *blocks, int aborted); +int bitmap_start_sync(struct bitmap *bitmap, sector_t offset, sector_t *blocks, int degraded); +void bitmap_end_sync(struct bitmap *bitmap, sector_t offset, sector_t *blocks, int aborted); void bitmap_close_sync(struct bitmap *bitmap); void bitmap_cond_end_sync(struct bitmap *bitmap, sector_t sector); diff --git a/drivers/md/faulty.c b/drivers/md/faulty.c index 1a89878..339fdc6 100644 --- a/drivers/md/faulty.c +++ b/drivers/md/faulty.c @@ -210,7 +210,7 @@ static int make_request(mddev_t *mddev, struct bio *bio) } } if (failit) { - struct bio *b = bio_clone(bio, GFP_NOIO); + struct bio *b = bio_clone_mddev(bio, GFP_NOIO, mddev); b->bi_bdev = conf->rdev->bdev; b->bi_private = bio; b->bi_end_io = faulty_fail; diff --git a/drivers/md/md.c b/drivers/md/md.c index 2258151..4e957f3 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -57,8 +57,6 @@ #define DEBUG 0 #define dprintk(x...) ((void)(DEBUG && printk(x))) -static DEFINE_MUTEX(md_mutex); - #ifndef MODULE static void autostart_arrays(int part); #endif @@ -69,6 +67,8 @@ static DEFINE_SPINLOCK(pers_lock); static void md_print_devices(void); static DECLARE_WAIT_QUEUE_HEAD(resync_wait); +static struct workqueue_struct *md_wq; +static struct workqueue_struct *md_misc_wq; #define MD_BUG(x...) { printk("md: bug in file %s, line %d\n", __FILE__, __LINE__); md_print_devices(); } @@ -149,6 +149,72 @@ static const struct block_device_operations md_fops; static int start_readonly; +/* bio_clone_mddev + * like bio_clone, but with a local bio set + */ + +static void mddev_bio_destructor(struct bio *bio) +{ + mddev_t *mddev, **mddevp; + + mddevp = (void*)bio; + mddev = mddevp[-1]; + + bio_free(bio, mddev->bio_set); +} + +struct bio *bio_alloc_mddev(gfp_t gfp_mask, int nr_iovecs, + mddev_t *mddev) +{ + struct bio *b; + mddev_t **mddevp; + + if (!mddev || !mddev->bio_set) + return bio_alloc(gfp_mask, nr_iovecs); + + b = bio_alloc_bioset(gfp_mask, nr_iovecs, + mddev->bio_set); + if (!b) + return NULL; + mddevp = (void*)b; + mddevp[-1] = mddev; + b->bi_destructor = mddev_bio_destructor; + return b; +} +EXPORT_SYMBOL_GPL(bio_alloc_mddev); + +struct bio *bio_clone_mddev(struct bio *bio, gfp_t gfp_mask, + mddev_t *mddev) +{ + struct bio *b; + mddev_t **mddevp; + + if (!mddev || !mddev->bio_set) + return bio_clone(bio, gfp_mask); + + b = bio_alloc_bioset(gfp_mask, bio->bi_max_vecs, + mddev->bio_set); + if (!b) + return NULL; + mddevp = (void*)b; + mddevp[-1] = mddev; + b->bi_destructor = mddev_bio_destructor; + __bio_clone(b, bio); + if (bio_integrity(bio)) { + int ret; + + ret = bio_integrity_clone(b, bio, gfp_mask, mddev->bio_set); + + if (ret < 0) { + bio_put(b); + return NULL; + } + } + + return b; +} +EXPORT_SYMBOL_GPL(bio_clone_mddev); + /* * We have a system wide 'event count' that is incremented * on any 'interesting' event, and readers of /proc/mdstat @@ -300,7 +366,7 @@ static void md_end_flush(struct bio *bio, int err) if (atomic_dec_and_test(&mddev->flush_pending)) { /* The pre-request flush has finished */ - schedule_work(&mddev->flush_work); + queue_work(md_wq, &mddev->flush_work); } bio_put(bio); } @@ -321,7 +387,7 @@ static void submit_flushes(mddev_t *mddev) atomic_inc(&rdev->nr_pending); atomic_inc(&rdev->nr_pending); rcu_read_unlock(); - bi = bio_alloc(GFP_KERNEL, 0); + bi = bio_alloc_mddev(GFP_KERNEL, 0, mddev); bi->bi_end_io = md_end_flush; bi->bi_private = rdev; bi->bi_bdev = rdev->bdev; @@ -369,7 +435,7 @@ void md_flush_request(mddev_t *mddev, struct bio *bio) submit_flushes(mddev); if (atomic_dec_and_test(&mddev->flush_pending)) - schedule_work(&mddev->flush_work); + queue_work(md_wq, &mddev->flush_work); } EXPORT_SYMBOL(md_flush_request); @@ -428,6 +494,8 @@ static void mddev_delayed_delete(struct work_struct *ws); static void mddev_put(mddev_t *mddev) { + struct bio_set *bs = NULL; + if (!atomic_dec_and_lock(&mddev->active, &all_mddevs_lock)) return; if (!mddev->raid_disks && list_empty(&mddev->disks) && @@ -435,19 +503,22 @@ static void mddev_put(mddev_t *mddev) /* Array is not configured at all, and not held active, * so destroy it */ list_del(&mddev->all_mddevs); + bs = mddev->bio_set; + mddev->bio_set = NULL; if (mddev->gendisk) { - /* we did a probe so need to clean up. - * Call schedule_work inside the spinlock - * so that flush_scheduled_work() after - * mddev_find will succeed in waiting for the - * work to be done. + /* We did a probe so need to clean up. Call + * queue_work inside the spinlock so that + * flush_workqueue() after mddev_find will + * succeed in waiting for the work to be done. */ INIT_WORK(&mddev->del_work, mddev_delayed_delete); - schedule_work(&mddev->del_work); + queue_work(md_misc_wq, &mddev->del_work); } else kfree(mddev); } spin_unlock(&all_mddevs_lock); + if (bs) + bioset_free(bs); } void mddev_init(mddev_t *mddev) @@ -691,7 +762,7 @@ void md_super_write(mddev_t *mddev, mdk_rdev_t *rdev, * if zero is reached. * If an error occurred, call md_error */ - struct bio *bio = bio_alloc(GFP_NOIO, 1); + struct bio *bio = bio_alloc_mddev(GFP_NOIO, 1, mddev); bio->bi_bdev = rdev->bdev; bio->bi_sector = sector; @@ -722,16 +793,16 @@ static void bi_complete(struct bio *bio, int error) complete((struct completion*)bio->bi_private); } -int sync_page_io(struct block_device *bdev, sector_t sector, int size, - struct page *page, int rw) +int sync_page_io(mdk_rdev_t *rdev, sector_t sector, int size, + struct page *page, int rw) { - struct bio *bio = bio_alloc(GFP_NOIO, 1); + struct bio *bio = bio_alloc_mddev(GFP_NOIO, 1, rdev->mddev); struct completion event; int ret; rw |= REQ_SYNC | REQ_UNPLUG; - bio->bi_bdev = bdev; + bio->bi_bdev = rdev->bdev; bio->bi_sector = sector; bio_add_page(bio, page, size, 0); init_completion(&event); @@ -757,7 +828,7 @@ static int read_disk_sb(mdk_rdev_t * rdev, int size) return 0; - if (!sync_page_io(rdev->bdev, rdev->sb_start, size, rdev->sb_page, READ)) + if (!sync_page_io(rdev, rdev->sb_start, size, rdev->sb_page, READ)) goto fail; rdev->sb_loaded = 1; return 0; @@ -1850,7 +1921,7 @@ static void unbind_rdev_from_array(mdk_rdev_t * rdev) synchronize_rcu(); INIT_WORK(&rdev->del_work, md_delayed_delete); kobject_get(&rdev->kobj); - schedule_work(&rdev->del_work); + queue_work(md_misc_wq, &rdev->del_work); } /* @@ -2108,6 +2179,8 @@ repeat: if (!mddev->persistent) { clear_bit(MD_CHANGE_CLEAN, &mddev->flags); clear_bit(MD_CHANGE_DEVS, &mddev->flags); + if (!mddev->external) + clear_bit(MD_CHANGE_PENDING, &mddev->flags); wake_up(&mddev->sb_wait); return; } @@ -4192,10 +4265,10 @@ static int md_alloc(dev_t dev, char *name) shift = partitioned ? MdpMinorShift : 0; unit = MINOR(mddev->unit) >> shift; - /* wait for any previous instance if this device - * to be completed removed (mddev_delayed_delete). + /* wait for any previous instance of this device to be + * completely removed (mddev_delayed_delete). */ - flush_scheduled_work(); + flush_workqueue(md_misc_wq); mutex_lock(&disks_mutex); error = -EEXIST; @@ -4378,6 +4451,9 @@ int md_run(mddev_t *mddev) sysfs_notify_dirent_safe(rdev->sysfs_state); } + if (mddev->bio_set == NULL) + mddev->bio_set = bioset_create(BIO_POOL_SIZE, sizeof(mddev)); + spin_lock(&pers_lock); pers = find_pers(mddev->level, mddev->clevel); if (!pers || !try_module_get(pers->owner)) { @@ -5885,16 +5961,14 @@ static int md_open(struct block_device *bdev, fmode_t mode) mddev_t *mddev = mddev_find(bdev->bd_dev); int err; - mutex_lock(&md_mutex); if (mddev->gendisk != bdev->bd_disk) { /* we are racing with mddev_put which is discarding this * bd_disk. */ mddev_put(mddev); /* Wait until bdev->bd_disk is definitely gone */ - flush_scheduled_work(); + flush_workqueue(md_misc_wq); /* Then retry the open from the top */ - mutex_unlock(&md_mutex); return -ERESTARTSYS; } BUG_ON(mddev != bdev->bd_disk->private_data); @@ -5908,7 +5982,6 @@ static int md_open(struct block_device *bdev, fmode_t mode) check_disk_size_change(mddev->gendisk, bdev); out: - mutex_unlock(&md_mutex); return err; } @@ -5917,10 +5990,8 @@ static int md_release(struct gendisk *disk, fmode_t mode) mddev_t *mddev = disk->private_data; BUG_ON(!mddev); - mutex_lock(&md_mutex); atomic_dec(&mddev->openers); mddev_put(mddev); - mutex_unlock(&md_mutex); return 0; } @@ -6052,7 +6123,7 @@ void md_error(mddev_t *mddev, mdk_rdev_t *rdev) set_bit(MD_RECOVERY_NEEDED, &mddev->recovery); md_wakeup_thread(mddev->thread); if (mddev->event_work.func) - schedule_work(&mddev->event_work); + queue_work(md_misc_wq, &mddev->event_work); md_new_event_inintr(mddev); } @@ -7212,12 +7283,23 @@ static void md_geninit(void) static int __init md_init(void) { - if (register_blkdev(MD_MAJOR, "md")) - return -1; - if ((mdp_major=register_blkdev(0, "mdp"))<=0) { - unregister_blkdev(MD_MAJOR, "md"); - return -1; - } + int ret = -ENOMEM; + + md_wq = alloc_workqueue("md", WQ_RESCUER, 0); + if (!md_wq) + goto err_wq; + + md_misc_wq = alloc_workqueue("md_misc", 0, 0); + if (!md_misc_wq) + goto err_misc_wq; + + if ((ret = register_blkdev(MD_MAJOR, "md")) < 0) + goto err_md; + + if ((ret = register_blkdev(0, "mdp")) < 0) + goto err_mdp; + mdp_major = ret; + blk_register_region(MKDEV(MD_MAJOR, 0), 1UL<<MINORBITS, THIS_MODULE, md_probe, NULL, NULL); blk_register_region(MKDEV(mdp_major, 0), 1UL<<MINORBITS, THIS_MODULE, @@ -7228,8 +7310,16 @@ static int __init md_init(void) md_geninit(); return 0; -} +err_mdp: + unregister_blkdev(MD_MAJOR, "md"); +err_md: + destroy_workqueue(md_misc_wq); +err_misc_wq: + destroy_workqueue(md_wq); +err_wq: + return ret; +} #ifndef MODULE @@ -7316,6 +7406,8 @@ static __exit void md_exit(void) export_array(mddev); mddev->hold_active = 0; } + destroy_workqueue(md_misc_wq); + destroy_workqueue(md_wq); } subsys_initcall(md_init); diff --git a/drivers/md/md.h b/drivers/md/md.h index 112a2c3..d05bab5 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -331,6 +331,8 @@ struct mddev_s struct attribute_group *to_remove; struct plug_handle *plug; /* if used by personality */ + struct bio_set *bio_set; + /* Generic flush handling. * The last to finish preflush schedules a worker to submit * the rest of the request (without the REQ_FLUSH flag). @@ -495,7 +497,7 @@ extern void md_flush_request(mddev_t *mddev, struct bio *bio); extern void md_super_write(mddev_t *mddev, mdk_rdev_t *rdev, sector_t sector, int size, struct page *page); extern void md_super_wait(mddev_t *mddev); -extern int sync_page_io(struct block_device *bdev, sector_t sector, int size, +extern int sync_page_io(mdk_rdev_t *rdev, sector_t sector, int size, struct page *page, int rw); extern void md_do_sync(mddev_t *mddev); extern void md_new_event(mddev_t *mddev); @@ -517,4 +519,8 @@ extern void md_rdev_init(mdk_rdev_t *rdev); extern void mddev_suspend(mddev_t *mddev); extern void mddev_resume(mddev_t *mddev); +extern struct bio *bio_clone_mddev(struct bio *bio, gfp_t gfp_mask, + mddev_t *mddev); +extern struct bio *bio_alloc_mddev(gfp_t gfp_mask, int nr_iovecs, + mddev_t *mddev); #endif /* _MD_MD_H */ diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 378a258..45f8324 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -100,7 +100,7 @@ static void * r1buf_pool_alloc(gfp_t gfp_flags, void *data) * Allocate bios : 1 for reading, n-1 for writing */ for (j = pi->raid_disks ; j-- ; ) { - bio = bio_alloc(gfp_flags, RESYNC_PAGES); + bio = bio_kmalloc(gfp_flags, RESYNC_PAGES); if (!bio) goto out_free_bio; r1_bio->bios[j] = bio; @@ -306,6 +306,28 @@ static void raid1_end_read_request(struct bio *bio, int error) rdev_dec_pending(conf->mirrors[mirror].rdev, conf->mddev); } +static void r1_bio_write_done(r1bio_t *r1_bio, int vcnt, struct bio_vec *bv, + int behind) +{ + if (atomic_dec_and_test(&r1_bio->remaining)) + { + /* it really is the end of this request */ + if (test_bit(R1BIO_BehindIO, &r1_bio->state)) { + /* free extra copy of the data pages */ + int i = vcnt; + while (i--) + safe_put_page(bv[i].bv_page); + } + /* clear the bitmap if all writes complete successfully */ + bitmap_endwrite(r1_bio->mddev->bitmap, r1_bio->sector, + r1_bio->sectors, + !test_bit(R1BIO_Degraded, &r1_bio->state), + behind); + md_write_end(r1_bio->mddev); + raid_end_bio_io(r1_bio); + } +} + static void raid1_end_write_request(struct bio *bio, int error) { int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags); @@ -373,21 +395,7 @@ static void raid1_end_write_request(struct bio *bio, int error) * Let's see if all mirrored write operations have finished * already. */ - if (atomic_dec_and_test(&r1_bio->remaining)) { - if (test_bit(R1BIO_BehindIO, &r1_bio->state)) { - /* free extra copy of the data pages */ - int i = bio->bi_vcnt; - while (i--) - safe_put_page(bio->bi_io_vec[i].bv_page); - } - /* clear the bitmap if all writes complete successfully */ - bitmap_endwrite(r1_bio->mddev->bitmap, r1_bio->sector, - r1_bio->sectors, - !test_bit(R1BIO_Degraded, &r1_bio->state), - behind); - md_write_end(r1_bio->mddev); - raid_end_bio_io(r1_bio); - } + r1_bio_write_done(r1_bio, bio->bi_vcnt, bio->bi_io_vec, behind); if (to_put) bio_put(to_put); @@ -411,11 +419,13 @@ static void raid1_end_write_request(struct bio *bio, int error) static int read_balance(conf_t *conf, r1bio_t *r1_bio) { const sector_t this_sector = r1_bio->sector; - int new_disk = conf->last_used, disk = new_disk; - int wonly_disk = -1; const int sectors = r1_bio->sectors; + int new_disk = -1; + int start_disk; + int i; sector_t new_distance, current_distance; mdk_rdev_t *rdev; + int choose_first; rcu_read_lock(); /* @@ -426,54 +436,33 @@ static int read_balance(conf_t *conf, r1bio_t *r1_bio) retry: if (conf->mddev->recovery_cp < MaxSector && (this_sector + sectors >= conf->next_resync)) { - /* Choose the first operational device, for consistancy */ - new_disk = 0; - - for (rdev = rcu_dereference(conf->mirrors[new_disk].rdev); - r1_bio->bios[new_disk] == IO_BLOCKED || - !rdev || !test_bit(In_sync, &rdev->flags) - || test_bit(WriteMostly, &rdev->flags); - rdev = rcu_dereference(conf->mirrors[++new_disk].rdev)) { - - if (rdev && test_bit(In_sync, &rdev->flags) && - r1_bio->bios[new_disk] != IO_BLOCKED) - wonly_disk = new_disk; - - if (new_disk == conf->raid_disks - 1) { - new_disk = wonly_disk; - break; - } - } - goto rb_out; + choose_first = 1; + start_disk = 0; + } else { + choose_first = 0; + start_disk = conf->last_used; } - /* make sure the disk is operational */ - for (rdev = rcu_dereference(conf->mirrors[new_disk].rdev); - r1_bio->bios[new_disk] == IO_BLOCKED || - !rdev || !test_bit(In_sync, &rdev->flags) || - test_bit(WriteMostly, &rdev->flags); - rdev = rcu_dereference(conf->mirrors[new_disk].rdev)) { - - if (rdev && test_bit(In_sync, &rdev->flags) && - r1_bio->bios[new_disk] != IO_BLOCKED) - wonly_disk = new_disk; - - if (new_disk <= 0) - new_disk = conf->raid_disks; - new_disk--; - if (new_disk == disk) { - new_disk = wonly_disk; + for (i = 0 ; i < conf->raid_disks ; i++) { + int disk = start_disk + i; + if (disk >= conf->raid_disks) + disk -= conf->raid_disks; + + rdev = rcu_dereference(conf->mirrors[disk].rdev); + if (r1_bio->bios[disk] == IO_BLOCKED + || rdev == NULL + || !test_bit(In_sync, &rdev->flags)) + continue; + + new_disk = disk; + if (!test_bit(WriteMostly, &rdev->flags)) break; - } } - if (new_disk < 0) + if (new_disk < 0 || choose_first) goto rb_out; - disk = new_disk; - /* now disk == new_disk == starting point for search */ - /* * Don't change to another disk for sequential reads: */ @@ -482,20 +471,21 @@ static int read_balance(conf_t *conf, r1bio_t *r1_bio) if (this_sector == conf->mirrors[new_disk].head_position) goto rb_out; - current_distance = abs(this_sector - conf->mirrors[disk].head_position); - - /* Find the disk whose head is closest */ + current_distance = abs(this_sector + - conf->mirrors[new_disk].head_position); - do { - if (disk <= 0) - disk = conf->raid_disks; - disk--; + /* look for a better disk - i.e. head is closer */ + start_disk = new_disk; + for (i = 1; i < conf->raid_disks; i++) { + int disk = start_disk + 1; + if (disk >= conf->raid_disks) + disk -= conf->raid_disks; rdev = rcu_dereference(conf->mirrors[disk].rdev); - - if (!rdev || r1_bio->bios[disk] == IO_BLOCKED || - !test_bit(In_sync, &rdev->flags) || - test_bit(WriteMostly, &rdev->flags)) + if (r1_bio->bios[disk] == IO_BLOCKED + || rdev == NULL + || !test_bit(In_sync, &rdev->flags) + || test_bit(WriteMostly, &rdev->flags)) continue; if (!atomic_read(&rdev->nr_pending)) { @@ -507,11 +497,9 @@ static int read_balance(conf_t *conf, r1bio_t *r1_bio) current_distance = new_distance; new_disk = disk; } - } while (disk != conf->last_used); + } rb_out: - - if (new_disk >= 0) { rdev = rcu_dereference(conf->mirrors[new_disk].rdev); if (!rdev) @@ -658,7 +646,7 @@ static void raise_barrier(conf_t *conf) /* block any new IO from starting */ conf->barrier++; - /* No wait for all pending IO to complete */ + /* Now wait for all pending IO to complete */ wait_event_lock_irq(conf->wait_barrier, !conf->nr_pending && conf->barrier < RESYNC_DEPTH, conf->resync_lock, @@ -735,23 +723,26 @@ static void unfreeze_array(conf_t *conf) } -/* duplicate the data pages for behind I/O */ -static struct page **alloc_behind_pages(struct bio *bio) +/* duplicate the data pages for behind I/O + * We return a list of bio_vec rather than just page pointers + * as it makes freeing easier + */ +static struct bio_vec *alloc_behind_pages(struct bio *bio) { int i; struct bio_vec *bvec; - struct page **pages = kzalloc(bio->bi_vcnt * sizeof(struct page *), + struct bio_vec *pages = kzalloc(bio->bi_vcnt * sizeof(struct bio_vec), GFP_NOIO); if (unlikely(!pages)) goto do_sync_io; bio_for_each_segment(bvec, bio, i) { - pages[i] = alloc_page(GFP_NOIO); - if (unlikely(!pages[i])) + pages[i].bv_page = alloc_page(GFP_NOIO); + if (unlikely(!pages[i].bv_page)) goto do_sync_io; - memcpy(kmap(pages[i]) + bvec->bv_offset, + memcpy(kmap(pages[i].bv_page) + bvec->bv_offset, kmap(bvec->bv_page) + bvec->bv_offset, bvec->bv_len); - kunmap(pages[i]); + kunmap(pages[i].bv_page); kunmap(bvec->bv_page); } @@ -759,8 +750,8 @@ static struct page **alloc_behind_pages(struct bio *bio) do_sync_io: if (pages) - for (i = 0; i < bio->bi_vcnt && pages[i]; i++) - put_page(pages[i]); + for (i = 0; i < bio->bi_vcnt && pages[i].bv_page; i++) + put_page(pages[i].bv_page); kfree(pages); PRINTK("%dB behind alloc failed, doing sync I/O\n", bio->bi_size); return NULL; @@ -775,8 +766,7 @@ static int make_request(mddev_t *mddev, struct bio * bio) int i, targets = 0, disks; struct bitmap *bitmap; unsigned long flags; - struct bio_list bl; - struct page **behind_pages = NULL; + struct bio_vec *behind_pages = NULL; const int rw = bio_data_dir(bio); const unsigned long do_sync = (bio->bi_rw & REQ_SYNC); const unsigned long do_flush_fua = (bio->bi_rw & (REQ_FLUSH | REQ_FUA)); @@ -851,7 +841,7 @@ static int make_request(mddev_t *mddev, struct bio * bio) } r1_bio->read_disk = rdisk; - read_bio = bio_clone(bio, GFP_NOIO); + read_bio = bio_clone_mddev(bio, GFP_NOIO, mddev); r1_bio->bios[rdisk] = read_bio; @@ -873,13 +863,6 @@ static int make_request(mddev_t *mddev, struct bio * bio) * bios[x] to bio */ disks = conf->raid_disks; -#if 0 - { static int first=1; - if (first) printk("First Write sector %llu disks %d\n", - (unsigned long long)r1_bio->sector, disks); - first = 0; - } -#endif retry_write: blocked_rdev = NULL; rcu_read_lock(); @@ -937,16 +920,17 @@ static int make_request(mddev_t *mddev, struct bio * bio) (behind_pages = alloc_behind_pages(bio)) != NULL) set_bit(R1BIO_BehindIO, &r1_bio->state); - atomic_set(&r1_bio->remaining, 0); + atomic_set(&r1_bio->remaining, 1); atomic_set(&r1_bio->behind_remaining, 0); - bio_list_init(&bl); + bitmap_startwrite(bitmap, bio->bi_sector, r1_bio->sectors, + test_bit(R1BIO_BehindIO, &r1_bio->state)); for (i = 0; i < disks; i++) { struct bio *mbio; if (!r1_bio->bios[i]) continue; - mbio = bio_clone(bio, GFP_NOIO); + mbio = bio_clone_mddev(bio, GFP_NOIO, mddev); r1_bio->bios[i] = mbio; mbio->bi_sector = r1_bio->sector + conf->mirrors[i].rdev->data_offset; @@ -963,39 +947,29 @@ static int make_request(mddev_t *mddev, struct bio * bio) * we clear any unused pointer in the io_vec, rather * than leave them unchanged. This is important * because when we come to free the pages, we won't - * know the originial bi_idx, so we just free + * know the original bi_idx, so we just free * them all */ __bio_for_each_segment(bvec, mbio, j, 0) - bvec->bv_page = behind_pages[j]; + bvec->bv_page = behind_pages[j].bv_page; if (test_bit(WriteMostly, &conf->mirrors[i].rdev->flags)) atomic_inc(&r1_bio->behind_remaining); } atomic_inc(&r1_bio->remaining); - - bio_list_add(&bl, mbio); + spin_lock_irqsave(&conf->device_lock, flags); + bio_list_add(&conf->pending_bio_list, mbio); + blk_plug_device(mddev->queue); + spin_unlock_irqrestore(&conf->device_lock, flags); } + r1_bio_write_done(r1_bio, bio->bi_vcnt, behind_pages, behind_pages != NULL); kfree(behind_pages); /* the behind pages are attached to the bios now */ - bitmap_startwrite(bitmap, bio->bi_sector, r1_bio->sectors, - test_bit(R1BIO_BehindIO, &r1_bio->state)); - spin_lock_irqsave(&conf->device_lock, flags); - bio_list_merge(&conf->pending_bio_list, &bl); - bio_list_init(&bl); - - blk_plug_device(mddev->queue); - spin_unlock_irqrestore(&conf->device_lock, flags); - - /* In case raid1d snuck into freeze_array */ + /* In case raid1d snuck in to freeze_array */ wake_up(&conf->wait_barrier); if (do_sync) md_wakeup_thread(mddev->thread); -#if 0 - while ((bio = bio_list_pop(&bl)) != NULL) - generic_make_request(bio); -#endif return 0; } @@ -1183,7 +1157,7 @@ static int raid1_remove_disk(mddev_t *mddev, int number) err = -EBUSY; goto abort; } - /* Only remove non-faulty devices is recovery + /* Only remove non-faulty devices if recovery * is not possible. */ if (!test_bit(Faulty, &rdev->flags) && @@ -1245,7 +1219,7 @@ static void end_sync_write(struct bio *bio, int error) break; } if (!uptodate) { - int sync_blocks = 0; + sector_t sync_blocks = 0; sector_t s = r1_bio->sector; long sectors_to_go = r1_bio->sectors; /* make sure these bits doesn't get cleared. */ @@ -1388,7 +1362,7 @@ static void sync_request_write(mddev_t *mddev, r1bio_t *r1_bio) * active, and resync is currently active */ rdev = conf->mirrors[d].rdev; - if (sync_page_io(rdev->bdev, + if (sync_page_io(rdev, sect + rdev->data_offset, s<<9, bio->bi_io_vec[idx].bv_page, @@ -1414,7 +1388,7 @@ static void sync_request_write(mddev_t *mddev, r1bio_t *r1_bio) continue; rdev = conf->mirrors[d].rdev; atomic_add(s, &rdev->corrected_errors); - if (sync_page_io(rdev->bdev, + if (sync_page_io(rdev, sect + rdev->data_offset, s<<9, bio->bi_io_vec[idx].bv_page, @@ -1429,7 +1403,7 @@ static void sync_request_write(mddev_t *mddev, r1bio_t *r1_bio) if (r1_bio->bios[d]->bi_end_io != end_sync_read) continue; rdev = conf->mirrors[d].rdev; - if (sync_page_io(rdev->bdev, + if (sync_page_io(rdev, sect + rdev->data_offset, s<<9, bio->bi_io_vec[idx].bv_page, @@ -1513,7 +1487,7 @@ static void fix_read_error(conf_t *conf, int read_disk, rdev = conf->mirrors[d].rdev; if (rdev && test_bit(In_sync, &rdev->flags) && - sync_page_io(rdev->bdev, + sync_page_io(rdev, sect + rdev->data_offset, s<<9, conf->tmppage, READ)) @@ -1539,7 +1513,7 @@ static void fix_read_error(conf_t *conf, int read_disk, rdev = conf->mirrors[d].rdev; if (rdev && test_bit(In_sync, &rdev->flags)) { - if (sync_page_io(rdev->bdev, + if (sync_page_io(rdev, sect + rdev->data_offset, s<<9, conf->tmppage, WRITE) == 0) @@ -1556,7 +1530,7 @@ static void fix_read_error(conf_t *conf, int read_disk, rdev = conf->mirrors[d].rdev; if (rdev && test_bit(In_sync, &rdev->flags)) { - if (sync_page_io(rdev->bdev, + if (sync_page_io(rdev, sect + rdev->data_offset, s<<9, conf->tmppage, READ) == 0) @@ -1646,7 +1620,8 @@ static void raid1d(mddev_t *mddev) mddev->ro ? IO_BLOCKED : NULL; r1_bio->read_disk = disk; bio_put(bio); - bio = bio_clone(r1_bio->master_bio, GFP_NOIO); + bio = bio_clone_mddev(r1_bio->master_bio, + GFP_NOIO, mddev); r1_bio->bios[r1_bio->read_disk] = bio; rdev = conf->mirrors[disk].rdev; if (printk_ratelimit()) @@ -1705,7 +1680,7 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i int i; int wonly = -1; int write_targets = 0, read_targets = 0; - int sync_blocks; + sector_t sync_blocks; int still_degraded = 0; if (!conf->r1buf_pool) @@ -1755,11 +1730,11 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i msleep_interruptible(1000); bitmap_cond_end_sync(mddev->bitmap, sector_nr); + r1_bio = mempool_alloc(conf->r1buf_pool, GFP_NOIO); raise_barrier(conf); conf->next_resync = sector_nr; - r1_bio = mempool_alloc(conf->r1buf_pool, GFP_NOIO); rcu_read_lock(); /* * If we get a correctably read error during resync or recovery, @@ -1971,7 +1946,6 @@ static conf_t *setup_conf(mddev_t *mddev) init_waitqueue_head(&conf->wait_barrier); bio_list_init(&conf->pending_bio_list); - bio_list_init(&conf->flushing_bio_list); conf->last_used = -1; for (i = 0; i < conf->raid_disks; i++) { diff --git a/drivers/md/raid1.h b/drivers/md/raid1.h index adf8cfd..cbfdf1a 100644 --- a/drivers/md/raid1.h +++ b/drivers/md/raid1.h @@ -35,8 +35,6 @@ struct r1_private_data_s { struct list_head retry_list; /* queue pending writes and submit them on unplug */ struct bio_list pending_bio_list; - /* queue of writes that have been unplugged */ - struct bio_list flushing_bio_list; /* for use when syncing mirrors: */ diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index f0d082f..c67aa54 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -120,7 +120,7 @@ static void * r10buf_pool_alloc(gfp_t gfp_flags, void *data) * Allocate bios. */ for (j = nalloc ; j-- ; ) { - bio = bio_alloc(gfp_flags, RESYNC_PAGES); + bio = bio_kmalloc(gfp_flags, RESYNC_PAGES); if (!bio) goto out_free_bio; r10_bio->devs[j].bio = bio; @@ -801,7 +801,6 @@ static int make_request(mddev_t *mddev, struct bio * bio) const int rw = bio_data_dir(bio); const unsigned long do_sync = (bio->bi_rw & REQ_SYNC); const unsigned long do_fua = (bio->bi_rw & REQ_FUA); - struct bio_list bl; unsigned long flags; mdk_rdev_t *blocked_rdev; @@ -890,7 +889,7 @@ static int make_request(mddev_t *mddev, struct bio * bio) } mirror = conf->mirrors + disk; - read_bio = bio_clone(bio, GFP_NOIO); + read_bio = bio_clone_mddev(bio, GFP_NOIO, mddev); r10_bio->devs[slot].bio = read_bio; @@ -950,16 +949,16 @@ static int make_request(mddev_t *mddev, struct bio * bio) goto retry_write; } - atomic_set(&r10_bio->remaining, 0); + atomic_set(&r10_bio->remaining, 1); + bitmap_startwrite(mddev->bitmap, bio->bi_sector, r10_bio->sectors, 0); - bio_list_init(&bl); for (i = 0; i < conf->copies; i++) { struct bio *mbio; int d = r10_bio->devs[i].devnum; if (!r10_bio->devs[i].bio) continue; - mbio = bio_clone(bio, GFP_NOIO); + mbio = bio_clone_mddev(bio, GFP_NOIO, mddev); r10_bio->devs[i].bio = mbio; mbio->bi_sector = r10_bio->devs[i].addr+ @@ -970,22 +969,22 @@ static int make_request(mddev_t *mddev, struct bio * bio) mbio->bi_private = r10_bio; atomic_inc(&r10_bio->remaining); - bio_list_add(&bl, mbio); + spin_lock_irqsave(&conf->device_lock, flags); + bio_list_add(&conf->pending_bio_list, mbio); + blk_plug_device(mddev->queue); + spin_unlock_irqrestore(&conf->device_lock, flags); } - if (unlikely(!atomic_read(&r10_bio->remaining))) { - /* the array is dead */ + if (atomic_dec_and_test(&r10_bio->remaining)) { + /* This matches the end of raid10_end_write_request() */ + bitmap_endwrite(r10_bio->mddev->bitmap, r10_bio->sector, + r10_bio->sectors, + !test_bit(R10BIO_Degraded, &r10_bio->state), + 0); md_write_end(mddev); raid_end_bio_io(r10_bio); - return 0; } - bitmap_startwrite(mddev->bitmap, bio->bi_sector, r10_bio->sectors, 0); - spin_lock_irqsave(&conf->device_lock, flags); - bio_list_merge(&conf->pending_bio_list, &bl); - blk_plug_device(mddev->queue); - spin_unlock_irqrestore(&conf->device_lock, flags); - /* In case raid10d snuck in to freeze_array */ wake_up(&conf->wait_barrier); @@ -1558,7 +1557,7 @@ static void fix_read_error(conf_t *conf, mddev_t *mddev, r10bio_t *r10_bio) test_bit(In_sync, &rdev->flags)) { atomic_inc(&rdev->nr_pending); rcu_read_unlock(); - success = sync_page_io(rdev->bdev, + success = sync_page_io(rdev, r10_bio->devs[sl].addr + sect + rdev->data_offset, s<<9, @@ -1597,7 +1596,7 @@ static void fix_read_error(conf_t *conf, mddev_t *mddev, r10bio_t *r10_bio) atomic_inc(&rdev->nr_pending); rcu_read_unlock(); atomic_add(s, &rdev->corrected_errors); - if (sync_page_io(rdev->bdev, + if (sync_page_io(rdev, r10_bio->devs[sl].addr + sect + rdev->data_offset, s<<9, conf->tmppage, WRITE) @@ -1634,7 +1633,7 @@ static void fix_read_error(conf_t *conf, mddev_t *mddev, r10bio_t *r10_bio) char b[BDEVNAME_SIZE]; atomic_inc(&rdev->nr_pending); rcu_read_unlock(); - if (sync_page_io(rdev->bdev, + if (sync_page_io(rdev, r10_bio->devs[sl].addr + sect + rdev->data_offset, s<<9, conf->tmppage, @@ -1747,7 +1746,8 @@ static void raid10d(mddev_t *mddev) mdname(mddev), bdevname(rdev->bdev,b), (unsigned long long)r10_bio->sector); - bio = bio_clone(r10_bio->master_bio, GFP_NOIO); + bio = bio_clone_mddev(r10_bio->master_bio, + GFP_NOIO, mddev); r10_bio->devs[r10_bio->read_slot].bio = bio; bio->bi_sector = r10_bio->devs[r10_bio->read_slot].addr + rdev->data_offset; @@ -1820,7 +1820,7 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i int disk; int i; int max_sync; - int sync_blocks; + sector_t sync_blocks; sector_t sectors_skipped = 0; int chunks_skipped = 0; diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 31140d1..dc574f3 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -3876,9 +3876,9 @@ static int chunk_aligned_read(mddev_t *mddev, struct bio * raid_bio) return 0; } /* - * use bio_clone to make a copy of the bio + * use bio_clone_mddev to make a copy of the bio */ - align_bi = bio_clone(raid_bio, GFP_NOIO); + align_bi = bio_clone_mddev(raid_bio, GFP_NOIO, mddev); if (!align_bi) return 0; /* @@ -4360,7 +4360,7 @@ static inline sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *ski raid5_conf_t *conf = mddev->private; struct stripe_head *sh; sector_t max_sector = mddev->dev_sectors; - int sync_blocks; + sector_t sync_blocks; int still_degraded = 0; int i; diff --git a/drivers/misc/ibmasm/ibmasmfs.c b/drivers/misc/ibmasm/ibmasmfs.c index 0a53500..d2d5d23 100644 --- a/drivers/misc/ibmasm/ibmasmfs.c +++ b/drivers/misc/ibmasm/ibmasmfs.c @@ -91,11 +91,10 @@ static void ibmasmfs_create_files (struct super_block *sb, struct dentry *root); static int ibmasmfs_fill_super (struct super_block *sb, void *data, int silent); -static int ibmasmfs_get_super(struct file_system_type *fst, - int flags, const char *name, void *data, - struct vfsmount *mnt) +static struct dentry *ibmasmfs_mount(struct file_system_type *fst, + int flags, const char *name, void *data) { - return get_sb_single(fst, flags, data, ibmasmfs_fill_super, mnt); + return mount_single(fst, flags, data, ibmasmfs_fill_super); } static const struct super_operations ibmasmfs_s_ops = { @@ -108,7 +107,7 @@ static const struct file_operations *ibmasmfs_dir_ops = &simple_dir_operations; static struct file_system_type ibmasmfs_type = { .owner = THIS_MODULE, .name = "ibmasmfs", - .get_sb = ibmasmfs_get_super, + .mount = ibmasmfs_mount, .kill_sb = kill_litter_super, }; diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index 5ef4548..a34a0fe 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -1030,17 +1030,15 @@ static const struct file_operations mtd_fops = { #endif }; -static int mtd_inodefs_get_sb(struct file_system_type *fs_type, int flags, - const char *dev_name, void *data, - struct vfsmount *mnt) +static struct dentry *mtd_inodefs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_pseudo(fs_type, "mtd_inode:", NULL, MTD_INODE_FS_MAGIC, - mnt); + return mount_pseudo(fs_type, "mtd_inode:", NULL, MTD_INODE_FS_MAGIC); } static struct file_system_type mtd_inodefs_type = { .name = "mtd_inodefs", - .get_sb = mtd_inodefs_get_sb, + .mount = mtd_inodefs_mount, .kill_sb = kill_anon_super, }; diff --git a/drivers/mtd/mtdsuper.c b/drivers/mtd/mtdsuper.c index 38e2ab0..16b02a1 100644 --- a/drivers/mtd/mtdsuper.c +++ b/drivers/mtd/mtdsuper.c @@ -54,11 +54,10 @@ static int get_sb_mtd_set(struct super_block *sb, void *_mtd) /* * get a superblock on an MTD-backed filesystem */ -static int get_sb_mtd_aux(struct file_system_type *fs_type, int flags, +static struct dentry *mount_mtd_aux(struct file_system_type *fs_type, int flags, const char *dev_name, void *data, struct mtd_info *mtd, - int (*fill_super)(struct super_block *, void *, int), - struct vfsmount *mnt) + int (*fill_super)(struct super_block *, void *, int)) { struct super_block *sb; int ret; @@ -79,57 +78,49 @@ static int get_sb_mtd_aux(struct file_system_type *fs_type, int flags, ret = fill_super(sb, data, flags & MS_SILENT ? 1 : 0); if (ret < 0) { deactivate_locked_super(sb); - return ret; + return ERR_PTR(ret); } /* go */ sb->s_flags |= MS_ACTIVE; - simple_set_mnt(mnt, sb); - - return 0; + return dget(sb->s_root); /* new mountpoint for an already mounted superblock */ already_mounted: DEBUG(1, "MTDSB: Device %d (\"%s\") is already mounted\n", mtd->index, mtd->name); - simple_set_mnt(mnt, sb); - ret = 0; - goto out_put; + put_mtd_device(mtd); + return dget(sb->s_root); out_error: - ret = PTR_ERR(sb); -out_put: put_mtd_device(mtd); - return ret; + return ERR_CAST(sb); } /* * get a superblock on an MTD-backed filesystem by MTD device number */ -static int get_sb_mtd_nr(struct file_system_type *fs_type, int flags, +static struct dentry *mount_mtd_nr(struct file_system_type *fs_type, int flags, const char *dev_name, void *data, int mtdnr, - int (*fill_super)(struct super_block *, void *, int), - struct vfsmount *mnt) + int (*fill_super)(struct super_block *, void *, int)) { struct mtd_info *mtd; mtd = get_mtd_device(NULL, mtdnr); if (IS_ERR(mtd)) { DEBUG(0, "MTDSB: Device #%u doesn't appear to exist\n", mtdnr); - return PTR_ERR(mtd); + return ERR_CAST(mtd); } - return get_sb_mtd_aux(fs_type, flags, dev_name, data, mtd, fill_super, - mnt); + return mount_mtd_aux(fs_type, flags, dev_name, data, mtd, fill_super); } /* * set up an MTD-based superblock */ -int get_sb_mtd(struct file_system_type *fs_type, int flags, +struct dentry *mount_mtd(struct file_system_type *fs_type, int flags, const char *dev_name, void *data, - int (*fill_super)(struct super_block *, void *, int), - struct vfsmount *mnt) + int (*fill_super)(struct super_block *, void *, int)) { #ifdef CONFIG_BLOCK struct block_device *bdev; @@ -138,7 +129,7 @@ int get_sb_mtd(struct file_system_type *fs_type, int flags, int mtdnr; if (!dev_name) - return -EINVAL; + return ERR_PTR(-EINVAL); DEBUG(2, "MTDSB: dev_name \"%s\"\n", dev_name); @@ -156,10 +147,10 @@ int get_sb_mtd(struct file_system_type *fs_type, int flags, mtd = get_mtd_device_nm(dev_name + 4); if (!IS_ERR(mtd)) - return get_sb_mtd_aux( + return mount_mtd_aux( fs_type, flags, dev_name, data, mtd, - fill_super, mnt); + fill_super); printk(KERN_NOTICE "MTD:" " MTD device with name \"%s\" not found.\n", @@ -174,9 +165,9 @@ int get_sb_mtd(struct file_system_type *fs_type, int flags, /* It was a valid number */ DEBUG(1, "MTDSB: mtd%%d, mtdnr %d\n", mtdnr); - return get_sb_mtd_nr(fs_type, flags, + return mount_mtd_nr(fs_type, flags, dev_name, data, - mtdnr, fill_super, mnt); + mtdnr, fill_super); } } } @@ -189,7 +180,7 @@ int get_sb_mtd(struct file_system_type *fs_type, int flags, if (IS_ERR(bdev)) { ret = PTR_ERR(bdev); DEBUG(1, "MTDSB: lookup_bdev() returned %d\n", ret); - return ret; + return ERR_PTR(ret); } DEBUG(1, "MTDSB: lookup_bdev() returned 0\n"); @@ -202,8 +193,7 @@ int get_sb_mtd(struct file_system_type *fs_type, int flags, if (major != MTD_BLOCK_MAJOR) goto not_an_MTD_device; - return get_sb_mtd_nr(fs_type, flags, dev_name, data, mtdnr, fill_super, - mnt); + return mount_mtd_nr(fs_type, flags, dev_name, data, mtdnr, fill_super); not_an_MTD_device: #endif /* CONFIG_BLOCK */ @@ -212,10 +202,10 @@ not_an_MTD_device: printk(KERN_NOTICE "MTD: Attempt to mount non-MTD device \"%s\"\n", dev_name); - return -EINVAL; + return ERR_PTR(-EINVAL); } -EXPORT_SYMBOL_GPL(get_sb_mtd); +EXPORT_SYMBOL_GPL(mount_mtd); /* * destroy an MTD-based superblock diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c index 449de59..e9ff6f7 100644 --- a/drivers/oprofile/oprofilefs.c +++ b/drivers/oprofile/oprofilefs.c @@ -259,17 +259,17 @@ static int oprofilefs_fill_super(struct super_block *sb, void *data, int silent) } -static int oprofilefs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *oprofilefs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_single(fs_type, flags, data, oprofilefs_fill_super, mnt); + return mount_single(fs_type, flags, data, oprofilefs_fill_super); } static struct file_system_type oprofilefs_type = { .owner = THIS_MODULE, .name = "oprofilefs", - .get_sb = oprofilefs_get_sb, + .mount = oprofilefs_mount, .kill_sb = kill_litter_super, }; diff --git a/drivers/staging/autofs/init.c b/drivers/staging/autofs/init.c index 765c72f..5e4b372 100644 --- a/drivers/staging/autofs/init.c +++ b/drivers/staging/autofs/init.c @@ -14,16 +14,16 @@ #include <linux/init.h> #include "autofs_i.h" -static int autofs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *autofs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_nodev(fs_type, flags, data, autofs_fill_super, mnt); + return mount_nodev(fs_type, flags, data, autofs_fill_super); } static struct file_system_type autofs_fs_type = { .owner = THIS_MODULE, .name = "autofs", - .get_sb = autofs_get_sb, + .mount = autofs_mount, .kill_sb = autofs_kill_sb, }; diff --git a/drivers/staging/pohmelfs/inode.c b/drivers/staging/pohmelfs/inode.c index c62d300..61685cc 100644 --- a/drivers/staging/pohmelfs/inode.c +++ b/drivers/staging/pohmelfs/inode.c @@ -1937,11 +1937,10 @@ err_out_exit: /* * Some VFS magic here... */ -static int pohmelfs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *pohmelfs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_nodev(fs_type, flags, data, pohmelfs_fill_super, - mnt); + return mount_nodev(fs_type, flags, data, pohmelfs_fill_super); } /* @@ -1958,7 +1957,7 @@ static void pohmelfs_kill_super(struct super_block *sb) static struct file_system_type pohmel_fs_type = { .owner = THIS_MODULE, .name = "pohmel", - .get_sb = pohmelfs_get_sb, + .mount = pohmelfs_mount, .kill_sb = pohmelfs_kill_super, }; diff --git a/drivers/staging/smbfs/inode.c b/drivers/staging/smbfs/inode.c index 552951a..f9c4935 100644 --- a/drivers/staging/smbfs/inode.c +++ b/drivers/staging/smbfs/inode.c @@ -793,16 +793,16 @@ out: return error; } -static int smb_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *smb_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_nodev(fs_type, flags, data, smb_fill_super, mnt); + return mount_nodev(fs_type, flags, data, smb_fill_super); } static struct file_system_type smb_fs_type = { .owner = THIS_MODULE, .name = "smbfs", - .get_sb = smb_get_sb, + .mount = smb_mount, .kill_sb = kill_anon_super, .fs_flags = FS_BINARY_MOUNTDATA, }; diff --git a/drivers/usb/core/inode.c b/drivers/usb/core/inode.c index e2f63c0..9819a4c 100644 --- a/drivers/usb/core/inode.c +++ b/drivers/usb/core/inode.c @@ -574,16 +574,16 @@ static void fs_remove_file (struct dentry *dentry) /* --------------------------------------------------------------------- */ -static int usb_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *usb_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_single(fs_type, flags, data, usbfs_fill_super, mnt); + return mount_single(fs_type, flags, data, usbfs_fill_super); } static struct file_system_type usb_fs_type = { .owner = THIS_MODULE, .name = "usbfs", - .get_sb = usb_get_sb, + .mount = usb_mount, .kill_sb = kill_litter_super, }; diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c index f276e95..4a830df 100644 --- a/drivers/usb/gadget/f_fs.c +++ b/drivers/usb/gadget/f_fs.c @@ -1176,9 +1176,9 @@ invalid: /* "mount -t functionfs dev_name /dev/function" ends up here */ -static int -ffs_fs_get_sb(struct file_system_type *t, int flags, - const char *dev_name, void *opts, struct vfsmount *mnt) +static struct dentry * +ffs_fs_mount(struct file_system_type *t, int flags, + const char *dev_name, void *opts) { struct ffs_sb_fill_data data = { .perms = { @@ -1194,14 +1194,14 @@ ffs_fs_get_sb(struct file_system_type *t, int flags, ret = functionfs_check_dev_callback(dev_name); if (unlikely(ret < 0)) - return ret; + return ERR_PTR(ret); ret = ffs_fs_parse_opts(&data, opts); if (unlikely(ret < 0)) - return ret; + return ERR_PTR(ret); data.dev_name = dev_name; - return get_sb_single(t, flags, &data, ffs_sb_fill, mnt); + return mount_single(t, flags, &data, ffs_sb_fill); } static void @@ -1220,7 +1220,7 @@ ffs_fs_kill_sb(struct super_block *sb) static struct file_system_type ffs_fs_type = { .owner = THIS_MODULE, .name = "functionfs", - .get_sb = ffs_fs_get_sb, + .mount = ffs_fs_mount, .kill_sb = ffs_fs_kill_sb, }; diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c index ba145e7..3ed73f4 100644 --- a/drivers/usb/gadget/inode.c +++ b/drivers/usb/gadget/inode.c @@ -2097,11 +2097,11 @@ enomem0: } /* "mount -t gadgetfs path /dev/gadget" ends up here */ -static int -gadgetfs_get_sb (struct file_system_type *t, int flags, - const char *path, void *opts, struct vfsmount *mnt) +static struct dentry * +gadgetfs_mount (struct file_system_type *t, int flags, + const char *path, void *opts) { - return get_sb_single (t, flags, opts, gadgetfs_fill_super, mnt); + return mount_single (t, flags, opts, gadgetfs_fill_super); } static void @@ -2119,7 +2119,7 @@ gadgetfs_kill_sb (struct super_block *sb) static struct file_system_type gadgetfs_type = { .owner = THIS_MODULE, .name = shortname, - .get_sb = gadgetfs_get_sb, + .mount = gadgetfs_mount, .kill_sb = gadgetfs_kill_sb, }; diff --git a/drivers/xen/xenfs/super.c b/drivers/xen/xenfs/super.c index d6662b7..f6339d1 100644 --- a/drivers/xen/xenfs/super.c +++ b/drivers/xen/xenfs/super.c @@ -121,17 +121,17 @@ static int xenfs_fill_super(struct super_block *sb, void *data, int silent) return rc; } -static int xenfs_get_sb(struct file_system_type *fs_type, +static int xenfs_mount(struct file_system_type *fs_type, int flags, const char *dev_name, - void *data, struct vfsmount *mnt) + void *data) { - return get_sb_single(fs_type, flags, data, xenfs_fill_super, mnt); + return mount_single(fs_type, flags, data, xenfs_fill_super); } static struct file_system_type xenfs_type = { .owner = THIS_MODULE, .name = "xenfs", - .get_sb = xenfs_get_sb, + .mount = xenfs_mount, .kill_sb = kill_litter_super, }; diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c index 48d4215..c55c614 100644 --- a/fs/9p/vfs_super.c +++ b/fs/9p/vfs_super.c @@ -68,7 +68,7 @@ static int v9fs_set_super(struct super_block *s, void *data) * v9fs_fill_super - populate superblock with info * @sb: superblock * @v9ses: session information - * @flags: flags propagated from v9fs_get_sb() + * @flags: flags propagated from v9fs_mount() * */ @@ -99,18 +99,16 @@ v9fs_fill_super(struct super_block *sb, struct v9fs_session_info *v9ses, } /** - * v9fs_get_sb - mount a superblock + * v9fs_mount - mount a superblock * @fs_type: file system type * @flags: mount flags * @dev_name: device name that was mounted * @data: mount options - * @mnt: mountpoint record to be instantiated * */ -static int v9fs_get_sb(struct file_system_type *fs_type, int flags, - const char *dev_name, void *data, - struct vfsmount *mnt) +static struct dentry *v9fs_mount(struct file_system_type *fs_type, int flags, + const char *dev_name, void *data) { struct super_block *sb = NULL; struct inode *inode = NULL; @@ -124,7 +122,7 @@ static int v9fs_get_sb(struct file_system_type *fs_type, int flags, v9ses = kzalloc(sizeof(struct v9fs_session_info), GFP_KERNEL); if (!v9ses) - return -ENOMEM; + return ERR_PTR(-ENOMEM); fid = v9fs_session_init(v9ses, dev_name, data); if (IS_ERR(fid)) { @@ -186,15 +184,15 @@ static int v9fs_get_sb(struct file_system_type *fs_type, int flags, v9fs_fid_add(root, fid); P9_DPRINTK(P9_DEBUG_VFS, " simple set mount, return 0\n"); - simple_set_mnt(mnt, sb); - return 0; + return dget(sb->s_root); clunk_fid: p9_client_clunk(fid); close_session: v9fs_session_close(v9ses); kfree(v9ses); - return retval; + return ERR_PTR(retval); + release_sb: /* * we will do the session_close and root dentry release @@ -204,7 +202,7 @@ release_sb: */ p9_client_clunk(fid); deactivate_locked_super(sb); - return retval; + return ERR_PTR(retval); } /** @@ -300,7 +298,7 @@ static const struct super_operations v9fs_super_ops_dotl = { struct file_system_type v9fs_fs_type = { .name = "9p", - .get_sb = v9fs_get_sb, + .mount = v9fs_mount, .kill_sb = v9fs_kill_super, .owner = THIS_MODULE, .fs_flags = FS_RENAME_DOES_D_MOVE, diff --git a/fs/adfs/super.c b/fs/adfs/super.c index d9803f7..959dbff 100644 --- a/fs/adfs/super.c +++ b/fs/adfs/super.c @@ -490,17 +490,16 @@ error: return -EINVAL; } -static int adfs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *adfs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_bdev(fs_type, flags, dev_name, data, adfs_fill_super, - mnt); + return mount_bdev(fs_type, flags, dev_name, data, adfs_fill_super); } static struct file_system_type adfs_fs_type = { .owner = THIS_MODULE, .name = "adfs", - .get_sb = adfs_get_sb, + .mount = adfs_mount, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; diff --git a/fs/affs/super.c b/fs/affs/super.c index fa4fbe1..0cf7f43 100644 --- a/fs/affs/super.c +++ b/fs/affs/super.c @@ -573,17 +573,16 @@ affs_statfs(struct dentry *dentry, struct kstatfs *buf) return 0; } -static int affs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *affs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_bdev(fs_type, flags, dev_name, data, affs_fill_super, - mnt); + return mount_bdev(fs_type, flags, dev_name, data, affs_fill_super); } static struct file_system_type affs_fs_type = { .owner = THIS_MODULE, .name = "affs", - .get_sb = affs_get_sb, + .mount = affs_mount, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; diff --git a/fs/afs/super.c b/fs/afs/super.c index eacf76d..27201cf 100644 --- a/fs/afs/super.c +++ b/fs/afs/super.c @@ -29,9 +29,8 @@ #define AFS_FS_MAGIC 0x6B414653 /* 'kAFS' */ static void afs_i_init_once(void *foo); -static int afs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, - void *data, struct vfsmount *mnt); +static struct dentry *afs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data); static struct inode *afs_alloc_inode(struct super_block *sb); static void afs_put_super(struct super_block *sb); static void afs_destroy_inode(struct inode *inode); @@ -40,7 +39,7 @@ static int afs_statfs(struct dentry *dentry, struct kstatfs *buf); struct file_system_type afs_fs_type = { .owner = THIS_MODULE, .name = "afs", - .get_sb = afs_get_sb, + .mount = afs_mount, .kill_sb = kill_anon_super, .fs_flags = 0, }; @@ -359,11 +358,8 @@ error: /* * get an AFS superblock */ -static int afs_get_sb(struct file_system_type *fs_type, - int flags, - const char *dev_name, - void *options, - struct vfsmount *mnt) +static struct dentry *afs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *options) { struct afs_mount_params params; struct super_block *sb; @@ -427,12 +423,11 @@ static int afs_get_sb(struct file_system_type *fs_type, ASSERTCMP(sb->s_flags, &, MS_ACTIVE); } - simple_set_mnt(mnt, sb); afs_put_volume(params.volume); afs_put_cell(params.cell); kfree(new_opts); _leave(" = 0 [%p]", sb); - return 0; + return dget(sb->s_root); error: afs_put_volume(params.volume); @@ -440,7 +435,7 @@ error: key_put(params.key); kfree(new_opts); _leave(" = %d", ret); - return ret; + return ERR_PTR(ret); } /* diff --git a/fs/anon_inodes.c b/fs/anon_inodes.c index 5365527..57ce55b 100644 --- a/fs/anon_inodes.c +++ b/fs/anon_inodes.c @@ -26,12 +26,10 @@ static struct vfsmount *anon_inode_mnt __read_mostly; static struct inode *anon_inode_inode; static const struct file_operations anon_inode_fops; -static int anon_inodefs_get_sb(struct file_system_type *fs_type, int flags, - const char *dev_name, void *data, - struct vfsmount *mnt) +static struct dentry *anon_inodefs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_pseudo(fs_type, "anon_inode:", NULL, ANON_INODE_FS_MAGIC, - mnt); + return mount_pseudo(fs_type, "anon_inode:", NULL, ANON_INODE_FS_MAGIC); } /* @@ -45,7 +43,7 @@ static char *anon_inodefs_dname(struct dentry *dentry, char *buffer, int buflen) static struct file_system_type anon_inode_fs_type = { .name = "anon_inodefs", - .get_sb = anon_inodefs_get_sb, + .mount = anon_inodefs_mount, .kill_sb = kill_anon_super, }; static const struct dentry_operations anon_inodefs_dentry_operations = { diff --git a/fs/autofs4/init.c b/fs/autofs4/init.c index 9722e4b..c038727 100644 --- a/fs/autofs4/init.c +++ b/fs/autofs4/init.c @@ -14,16 +14,16 @@ #include <linux/init.h> #include "autofs_i.h" -static int autofs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *autofs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_nodev(fs_type, flags, data, autofs4_fill_super, mnt); + return mount_nodev(fs_type, flags, data, autofs4_fill_super); } static struct file_system_type autofs_fs_type = { .owner = THIS_MODULE, .name = "autofs", - .get_sb = autofs_get_sb, + .mount = autofs_mount, .kill_sb = autofs4_kill_sb, }; diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c index dc39d28..aa4e7c7 100644 --- a/fs/befs/linuxvfs.c +++ b/fs/befs/linuxvfs.c @@ -913,18 +913,17 @@ befs_statfs(struct dentry *dentry, struct kstatfs *buf) return 0; } -static int -befs_get_sb(struct file_system_type *fs_type, int flags, const char *dev_name, - void *data, struct vfsmount *mnt) +static struct dentry * +befs_mount(struct file_system_type *fs_type, int flags, const char *dev_name, + void *data) { - return get_sb_bdev(fs_type, flags, dev_name, data, befs_fill_super, - mnt); + return mount_bdev(fs_type, flags, dev_name, data, befs_fill_super); } static struct file_system_type befs_fs_type = { .owner = THIS_MODULE, .name = "befs", - .get_sb = befs_get_sb, + .mount = befs_mount, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; diff --git a/fs/bfs/inode.c b/fs/bfs/inode.c index 883e77a..76db6d7 100644 --- a/fs/bfs/inode.c +++ b/fs/bfs/inode.c @@ -450,16 +450,16 @@ out: return ret; } -static int bfs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *bfs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_bdev(fs_type, flags, dev_name, data, bfs_fill_super, mnt); + return mount_bdev(fs_type, flags, dev_name, data, bfs_fill_super); } static struct file_system_type bfs_fs_type = { .owner = THIS_MODULE, .name = "bfs", - .get_sb = bfs_get_sb, + .mount = bfs_mount, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c index 29990f0..1befe2e 100644 --- a/fs/binfmt_misc.c +++ b/fs/binfmt_misc.c @@ -706,10 +706,10 @@ static int bm_fill_super(struct super_block * sb, void * data, int silent) return err; } -static int bm_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *bm_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_single(fs_type, flags, data, bm_fill_super, mnt); + return mount_single(fs_type, flags, data, bm_fill_super); } static struct linux_binfmt misc_format = { @@ -720,7 +720,7 @@ static struct linux_binfmt misc_format = { static struct file_system_type bm_fs_type = { .owner = THIS_MODULE, .name = "binfmt_misc", - .get_sb = bm_get_sb, + .mount = bm_mount, .kill_sb = kill_litter_super, }; diff --git a/fs/block_dev.c b/fs/block_dev.c index dea3b62..06e8ff1 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -464,15 +464,15 @@ static const struct super_operations bdev_sops = { .evict_inode = bdev_evict_inode, }; -static int bd_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *bd_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_pseudo(fs_type, "bdev:", &bdev_sops, 0x62646576, mnt); + return mount_pseudo(fs_type, "bdev:", &bdev_sops, 0x62646576); } static struct file_system_type bd_type = { .name = "bdev", - .get_sb = bd_get_sb, + .mount = bd_mount, .kill_sb = kill_anon_super, }; diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 144f8a5..ebe46c6 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -560,8 +560,8 @@ static int btrfs_test_super(struct super_block *s, void *data) * Note: This is based on get_sb_bdev from fs/super.c with a few additions * for multiple device setup. Make sure to keep it in sync. */ -static int btrfs_get_sb(struct file_system_type *fs_type, int flags, - const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *btrfs_mount(struct file_system_type *fs_type, int flags, + const char *dev_name, void *data) { struct block_device *bdev = NULL; struct super_block *s; @@ -580,7 +580,7 @@ static int btrfs_get_sb(struct file_system_type *fs_type, int flags, &subvol_name, &subvol_objectid, &fs_devices); if (error) - return error; + return ERR_PTR(error); error = btrfs_scan_one_device(dev_name, mode, fs_type, &fs_devices); if (error) @@ -656,11 +656,8 @@ static int btrfs_get_sb(struct file_system_type *fs_type, int flags, root = new_root; } - mnt->mnt_sb = s; - mnt->mnt_root = root; - kfree(subvol_name); - return 0; + return root; error_s: error = PTR_ERR(s); @@ -669,7 +666,7 @@ error_close_devices: error_free_subvol_name: kfree(subvol_name); error: - return error; + return ERR_PTR(error); } static int btrfs_remount(struct super_block *sb, int *flags, char *data) @@ -746,7 +743,7 @@ static int btrfs_statfs(struct dentry *dentry, struct kstatfs *buf) static struct file_system_type btrfs_fs_type = { .owner = THIS_MODULE, .name = "btrfs", - .get_sb = btrfs_get_sb, + .mount = btrfs_mount, .kill_sb = kill_anon_super, .fs_flags = FS_REQUIRES_DEV, }; diff --git a/fs/ceph/super.c b/fs/ceph/super.c index d6e0e04..08b460a 100644 --- a/fs/ceph/super.c +++ b/fs/ceph/super.c @@ -635,7 +635,7 @@ static struct dentry *open_root_dentry(struct ceph_fs_client *fsc, /* * mount: join the ceph cluster, and open root directory. */ -static int ceph_mount(struct ceph_fs_client *fsc, struct vfsmount *mnt, +static struct dentry *ceph_real_mount(struct ceph_fs_client *fsc, const char *path) { int err; @@ -678,16 +678,14 @@ static int ceph_mount(struct ceph_fs_client *fsc, struct vfsmount *mnt, } } - mnt->mnt_root = root; - mnt->mnt_sb = fsc->sb; - fsc->mount_state = CEPH_MOUNT_MOUNTED; dout("mount success\n"); - err = 0; + mutex_unlock(&fsc->client->mount_mutex); + return root; out: mutex_unlock(&fsc->client->mount_mutex); - return err; + return ERR_PTR(err); fail: if (first) { @@ -777,41 +775,45 @@ static int ceph_register_bdi(struct super_block *sb, return err; } -static int ceph_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, - struct vfsmount *mnt) +static struct dentry *ceph_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { struct super_block *sb; struct ceph_fs_client *fsc; + struct dentry *res; int err; int (*compare_super)(struct super_block *, void *) = ceph_compare_super; const char *path = NULL; struct ceph_mount_options *fsopt = NULL; struct ceph_options *opt = NULL; - dout("ceph_get_sb\n"); + dout("ceph_mount\n"); err = parse_mount_options(&fsopt, &opt, flags, data, dev_name, &path); - if (err < 0) + if (err < 0) { + res = ERR_PTR(err); goto out_final; + } /* create client (which we may/may not use) */ fsc = create_fs_client(fsopt, opt); if (IS_ERR(fsc)) { - err = PTR_ERR(fsc); + res = ERR_CAST(fsc); kfree(fsopt); kfree(opt); goto out_final; } err = ceph_mdsc_init(fsc); - if (err < 0) + if (err < 0) { + res = ERR_PTR(err); goto out; + } if (ceph_test_opt(fsc->client, NOSHARE)) compare_super = NULL; sb = sget(fs_type, compare_super, ceph_set_super, fsc); if (IS_ERR(sb)) { - err = PTR_ERR(sb); + res = ERR_CAST(sb); goto out; } @@ -823,16 +825,18 @@ static int ceph_get_sb(struct file_system_type *fs_type, } else { dout("get_sb using new client %p\n", fsc); err = ceph_register_bdi(sb, fsc); - if (err < 0) + if (err < 0) { + res = ERR_PTR(err); goto out_splat; + } } - err = ceph_mount(fsc, mnt, path); - if (err < 0) + res = ceph_real_mount(fsc, path); + if (IS_ERR(res)) goto out_splat; - dout("root %p inode %p ino %llx.%llx\n", mnt->mnt_root, - mnt->mnt_root->d_inode, ceph_vinop(mnt->mnt_root->d_inode)); - return 0; + dout("root %p inode %p ino %llx.%llx\n", res, + res->d_inode, ceph_vinop(res->d_inode)); + return res; out_splat: ceph_mdsc_close_sessions(fsc->mdsc); @@ -843,8 +847,8 @@ out: ceph_mdsc_destroy(fsc); destroy_fs_client(fsc); out_final: - dout("ceph_get_sb fail %d\n", err); - return err; + dout("ceph_mount fail %ld\n", PTR_ERR(res)); + return res; } static void ceph_kill_sb(struct super_block *s) @@ -860,7 +864,7 @@ static void ceph_kill_sb(struct super_block *s) static struct file_system_type ceph_fs_type = { .owner = THIS_MODULE, .name = "ceph", - .get_sb = ceph_get_sb, + .mount = ceph_mount, .kill_sb = ceph_kill_sb, .fs_flags = FS_RENAME_DOES_D_MOVE, }; diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 3437163..8bd5c2c 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -545,9 +545,9 @@ static const struct super_operations cifs_super_ops = { #endif }; -static int -cifs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry * +cifs_do_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { int rc; struct super_block *sb; @@ -557,18 +557,17 @@ cifs_get_sb(struct file_system_type *fs_type, cFYI(1, "Devname: %s flags: %d ", dev_name, flags); if (IS_ERR(sb)) - return PTR_ERR(sb); + return ERR_CAST(sb); sb->s_flags = flags; rc = cifs_read_super(sb, data, dev_name, flags & MS_SILENT ? 1 : 0); if (rc) { deactivate_locked_super(sb); - return rc; + return ERR_PTR(rc); } sb->s_flags |= MS_ACTIVE; - simple_set_mnt(mnt, sb); - return 0; + return dget(sb->s_root); } static ssize_t cifs_file_aio_write(struct kiocb *iocb, const struct iovec *iov, @@ -634,7 +633,7 @@ static int cifs_setlease(struct file *file, long arg, struct file_lock **lease) struct file_system_type cifs_fs_type = { .owner = THIS_MODULE, .name = "cifs", - .get_sb = cifs_get_sb, + .mount = cifs_do_mount, .kill_sb = kill_anon_super, /* .fs_flags */ }; diff --git a/fs/coda/inode.c b/fs/coda/inode.c index 7993b96..5ea57c8 100644 --- a/fs/coda/inode.c +++ b/fs/coda/inode.c @@ -306,16 +306,16 @@ static int coda_statfs(struct dentry *dentry, struct kstatfs *buf) /* init_coda: used by filesystems.c to register coda */ -static int coda_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *coda_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_nodev(fs_type, flags, data, coda_fill_super, mnt); + return mount_nodev(fs_type, flags, data, coda_fill_super); } struct file_system_type coda_fs_type = { .owner = THIS_MODULE, .name = "coda", - .get_sb = coda_get_sb, + .mount = coda_mount, .kill_sb = kill_anon_super, .fs_flags = FS_BINARY_MOUNTDATA, }; diff --git a/fs/configfs/mount.c b/fs/configfs/mount.c index 8c8d642..7d3607f 100644 --- a/fs/configfs/mount.c +++ b/fs/configfs/mount.c @@ -104,16 +104,16 @@ static int configfs_fill_super(struct super_block *sb, void *data, int silent) return 0; } -static int configfs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *configfs_do_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_single(fs_type, flags, data, configfs_fill_super, mnt); + return mount_single(fs_type, flags, data, configfs_fill_super); } static struct file_system_type configfs_fs_type = { .owner = THIS_MODULE, .name = "configfs", - .get_sb = configfs_get_sb, + .mount = configfs_do_mount, .kill_sb = kill_litter_super, }; diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c index 1e7a330..32fd5fe 100644 --- a/fs/cramfs/inode.c +++ b/fs/cramfs/inode.c @@ -533,17 +533,16 @@ static const struct super_operations cramfs_ops = { .statfs = cramfs_statfs, }; -static int cramfs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *cramfs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_bdev(fs_type, flags, dev_name, data, cramfs_fill_super, - mnt); + return mount_bdev(fs_type, flags, dev_name, data, cramfs_fill_super); } static struct file_system_type cramfs_fs_type = { .owner = THIS_MODULE, .name = "cramfs", - .get_sb = cramfs_get_sb, + .mount = cramfs_mount, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c index a4ed838..37a8ca7 100644 --- a/fs/debugfs/inode.c +++ b/fs/debugfs/inode.c @@ -135,17 +135,17 @@ static int debug_fill_super(struct super_block *sb, void *data, int silent) return simple_fill_super(sb, DEBUGFS_MAGIC, debug_files); } -static int debug_get_sb(struct file_system_type *fs_type, +static struct dentry *debug_mount(struct file_system_type *fs_type, int flags, const char *dev_name, - void *data, struct vfsmount *mnt) + void *data) { - return get_sb_single(fs_type, flags, data, debug_fill_super, mnt); + return mount_single(fs_type, flags, data, debug_fill_super); } static struct file_system_type debug_fs_type = { .owner = THIS_MODULE, .name = "debugfs", - .get_sb = debug_get_sb, + .mount = debug_mount, .kill_sb = kill_litter_super, }; diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c index 8b3ffd5..1bb547c 100644 --- a/fs/devpts/inode.c +++ b/fs/devpts/inode.c @@ -331,7 +331,7 @@ static int compare_init_pts_sb(struct super_block *s, void *p) } /* - * devpts_get_sb() + * devpts_mount() * * If the '-o newinstance' mount option was specified, mount a new * (private) instance of devpts. PTYs created in this instance are @@ -345,20 +345,20 @@ static int compare_init_pts_sb(struct super_block *s, void *p) * semantics in devpts while preserving backward compatibility of the * current 'single-namespace' semantics. i.e all mounts of devpts * without the 'newinstance' mount option should bind to the initial - * kernel mount, like get_sb_single(). + * kernel mount, like mount_single(). * * Mounts with 'newinstance' option create a new, private namespace. * * NOTE: * - * For single-mount semantics, devpts cannot use get_sb_single(), - * because get_sb_single()/sget() find and use the super-block from + * For single-mount semantics, devpts cannot use mount_single(), + * because mount_single()/sget() find and use the super-block from * the most recent mount of devpts. But that recent mount may be a - * 'newinstance' mount and get_sb_single() would pick the newinstance + * 'newinstance' mount and mount_single() would pick the newinstance * super-block instead of the initial super-block. */ -static int devpts_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *devpts_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { int error; struct pts_mount_opts opts; @@ -366,7 +366,7 @@ static int devpts_get_sb(struct file_system_type *fs_type, error = parse_mount_options(data, PARSE_MOUNT, &opts); if (error) - return error; + return ERR_PTR(error); if (opts.newinstance) s = sget(fs_type, NULL, set_anon_super, NULL); @@ -374,7 +374,7 @@ static int devpts_get_sb(struct file_system_type *fs_type, s = sget(fs_type, compare_init_pts_sb, set_anon_super, NULL); if (IS_ERR(s)) - return PTR_ERR(s); + return ERR_CAST(s); if (!s->s_root) { s->s_flags = flags; @@ -390,13 +390,11 @@ static int devpts_get_sb(struct file_system_type *fs_type, if (error) goto out_undo_sget; - simple_set_mnt(mnt, s); - - return 0; + return dget(s->s_root); out_undo_sget: deactivate_locked_super(s); - return error; + return ERR_PTR(error); } #else @@ -404,10 +402,10 @@ out_undo_sget: * This supports only the legacy single-instance semantics (no * multiple-instance semantics) */ -static int devpts_get_sb(struct file_system_type *fs_type, int flags, - const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *devpts_mount(struct file_system_type *fs_type, int flags, + const char *dev_name, void *data) { - return get_sb_single(fs_type, flags, data, devpts_fill_super, mnt); + return mount_single(fs_type, flags, data, devpts_fill_super); } #endif @@ -421,7 +419,7 @@ static void devpts_kill_sb(struct super_block *sb) static struct file_system_type devpts_fs_type = { .name = "devpts", - .get_sb = devpts_get_sb, + .mount = devpts_mount, .kill_sb = devpts_kill_sb, }; diff --git a/fs/ecryptfs/main.c b/fs/ecryptfs/main.c index cbd4e18..8585934 100644 --- a/fs/ecryptfs/main.c +++ b/fs/ecryptfs/main.c @@ -540,9 +540,8 @@ out: * ecryptfs_interpose to perform most of the linking * ecryptfs_interpose(): links the lower filesystem into ecryptfs (inode.c) */ -static int ecryptfs_get_sb(struct file_system_type *fs_type, int flags, - const char *dev_name, void *raw_data, - struct vfsmount *mnt) +static struct dentry *ecryptfs_mount(struct file_system_type *fs_type, int flags, + const char *dev_name, void *raw_data) { struct super_block *s; struct ecryptfs_sb_info *sbi; @@ -607,8 +606,7 @@ static int ecryptfs_get_sb(struct file_system_type *fs_type, int flags, err = "Reading sb failed"; goto out; } - simple_set_mnt(mnt, s); - return 0; + return dget(s->s_root); out: if (sbi) { @@ -616,7 +614,7 @@ out: kmem_cache_free(ecryptfs_sb_info_cache, sbi); } printk(KERN_ERR "%s; rc = [%d]\n", err, rc); - return rc; + return ERR_PTR(rc); } /** @@ -639,7 +637,7 @@ static void ecryptfs_kill_block_super(struct super_block *sb) static struct file_system_type ecryptfs_fs_type = { .owner = THIS_MODULE, .name = "ecryptfs", - .get_sb = ecryptfs_get_sb, + .mount = ecryptfs_mount, .kill_sb = ecryptfs_kill_block_super, .fs_flags = 0 }; diff --git a/fs/efs/super.c b/fs/efs/super.c index f049428..5073a07 100644 --- a/fs/efs/super.c +++ b/fs/efs/super.c @@ -20,16 +20,16 @@ static int efs_statfs(struct dentry *dentry, struct kstatfs *buf); static int efs_fill_super(struct super_block *s, void *d, int silent); -static int efs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *efs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_bdev(fs_type, flags, dev_name, data, efs_fill_super, mnt); + return mount_bdev(fs_type, flags, dev_name, data, efs_fill_super); } static struct file_system_type efs_fs_type = { .owner = THIS_MODULE, .name = "efs", - .get_sb = efs_get_sb, + .mount = efs_mount, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; diff --git a/fs/exofs/super.c b/fs/exofs/super.c index 047e92f..79c3ae6 100644 --- a/fs/exofs/super.c +++ b/fs/exofs/super.c @@ -659,19 +659,19 @@ free_bdi: /* * Set up the superblock (calls exofs_fill_super eventually) */ -static int exofs_get_sb(struct file_system_type *type, +static struct dentry *exofs_mount(struct file_system_type *type, int flags, const char *dev_name, - void *data, struct vfsmount *mnt) + void *data) { struct exofs_mountopt opts; int ret; ret = parse_options(data, &opts); if (ret) - return ret; + return ERR_PTR(ret); opts.dev_name = dev_name; - return get_sb_nodev(type, flags, &opts, exofs_fill_super, mnt); + return mount_nodev(type, flags, &opts, exofs_fill_super); } /* @@ -809,7 +809,7 @@ static const struct export_operations exofs_export_ops = { static struct file_system_type exofs_type = { .owner = THIS_MODULE, .name = "exofs", - .get_sb = exofs_get_sb, + .mount = exofs_mount, .kill_sb = generic_shutdown_super, }; diff --git a/fs/ext2/super.c b/fs/ext2/super.c index 0901320..d89e0b6 100644 --- a/fs/ext2/super.c +++ b/fs/ext2/super.c @@ -1356,10 +1356,10 @@ static int ext2_statfs (struct dentry * dentry, struct kstatfs * buf) return 0; } -static int ext2_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *ext2_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_bdev(fs_type, flags, dev_name, data, ext2_fill_super, mnt); + return mount_bdev(fs_type, flags, dev_name, data, ext2_fill_super); } #ifdef CONFIG_QUOTA @@ -1473,7 +1473,7 @@ out: static struct file_system_type ext2_fs_type = { .owner = THIS_MODULE, .name = "ext2", - .get_sb = ext2_get_sb, + .mount = ext2_mount, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; diff --git a/fs/ext3/super.c b/fs/ext3/super.c index db87413..2fedaf8 100644 --- a/fs/ext3/super.c +++ b/fs/ext3/super.c @@ -3020,16 +3020,16 @@ out: #endif -static int ext3_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *ext3_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_bdev(fs_type, flags, dev_name, data, ext3_fill_super, mnt); + return mount_bdev(fs_type, flags, dev_name, data, ext3_fill_super); } static struct file_system_type ext3_fs_type = { .owner = THIS_MODULE, .name = "ext3", - .get_sb = ext3_get_sb, + .mount = ext3_mount, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 0348ce0..40131b7 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -73,8 +73,8 @@ static int ext4_statfs(struct dentry *dentry, struct kstatfs *buf); static int ext4_unfreeze(struct super_block *sb); static void ext4_write_super(struct super_block *sb); static int ext4_freeze(struct super_block *sb); -static int ext4_get_sb(struct file_system_type *fs_type, int flags, - const char *dev_name, void *data, struct vfsmount *mnt); +static struct dentry *ext4_mount(struct file_system_type *fs_type, int flags, + const char *dev_name, void *data); static void ext4_destroy_lazyinit_thread(void); static void ext4_unregister_li_request(struct super_block *sb); @@ -82,7 +82,7 @@ static void ext4_unregister_li_request(struct super_block *sb); static struct file_system_type ext3_fs_type = { .owner = THIS_MODULE, .name = "ext3", - .get_sb = ext4_get_sb, + .mount = ext4_mount, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; @@ -4667,17 +4667,17 @@ out: #endif -static int ext4_get_sb(struct file_system_type *fs_type, int flags, - const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *ext4_mount(struct file_system_type *fs_type, int flags, + const char *dev_name, void *data) { - return get_sb_bdev(fs_type, flags, dev_name, data, ext4_fill_super,mnt); + return mount_bdev(fs_type, flags, dev_name, data, ext4_fill_super); } #if !defined(CONFIG_EXT2_FS) && !defined(CONFIG_EXT2_FS_MODULE) && defined(CONFIG_EXT4_USE_FOR_EXT23) static struct file_system_type ext2_fs_type = { .owner = THIS_MODULE, .name = "ext2", - .get_sb = ext4_get_sb, + .mount = ext4_mount, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; @@ -4722,7 +4722,7 @@ static inline void unregister_as_ext3(void) { } static struct file_system_type ext4_fs_type = { .owner = THIS_MODULE, .name = "ext4", - .get_sb = ext4_get_sb, + .mount = ext4_mount, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; diff --git a/fs/fat/namei_msdos.c b/fs/fat/namei_msdos.c index bbca5c1..3345aab 100644 --- a/fs/fat/namei_msdos.c +++ b/fs/fat/namei_msdos.c @@ -675,18 +675,17 @@ static int msdos_fill_super(struct super_block *sb, void *data, int silent) return 0; } -static int msdos_get_sb(struct file_system_type *fs_type, +static struct dentry *msdos_mount(struct file_system_type *fs_type, int flags, const char *dev_name, - void *data, struct vfsmount *mnt) + void *data) { - return get_sb_bdev(fs_type, flags, dev_name, data, msdos_fill_super, - mnt); + return mount_bdev(fs_type, flags, dev_name, data, msdos_fill_super); } static struct file_system_type msdos_fs_type = { .owner = THIS_MODULE, .name = "msdos", - .get_sb = msdos_get_sb, + .mount = msdos_mount, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; diff --git a/fs/fat/namei_vfat.c b/fs/fat/namei_vfat.c index 6f0f6c9..b936703 100644 --- a/fs/fat/namei_vfat.c +++ b/fs/fat/namei_vfat.c @@ -1071,18 +1071,17 @@ static int vfat_fill_super(struct super_block *sb, void *data, int silent) return 0; } -static int vfat_get_sb(struct file_system_type *fs_type, +static struct dentry *vfat_mount(struct file_system_type *fs_type, int flags, const char *dev_name, - void *data, struct vfsmount *mnt) + void *data) { - return get_sb_bdev(fs_type, flags, dev_name, data, vfat_fill_super, - mnt); + return mount_bdev(fs_type, flags, dev_name, data, vfat_fill_super); } static struct file_system_type vfat_fs_type = { .owner = THIS_MODULE, .name = "vfat", - .get_sb = vfat_get_sb, + .mount = vfat_mount, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; diff --git a/fs/freevxfs/vxfs_super.c b/fs/freevxfs/vxfs_super.c index 71b0148..9d1c995 100644 --- a/fs/freevxfs/vxfs_super.c +++ b/fs/freevxfs/vxfs_super.c @@ -246,17 +246,16 @@ out: /* * The usual module blurb. */ -static int vxfs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *vxfs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_bdev(fs_type, flags, dev_name, data, vxfs_fill_super, - mnt); + return mount_bdev(fs_type, flags, dev_name, data, vxfs_fill_super); } static struct file_system_type vxfs_fs_type = { .owner = THIS_MODULE, .name = "vxfs", - .get_sb = vxfs_get_sb, + .mount = vxfs_mount, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; diff --git a/fs/fuse/control.c b/fs/fuse/control.c index 4eba076..85542a7 100644 --- a/fs/fuse/control.c +++ b/fs/fuse/control.c @@ -322,12 +322,10 @@ static int fuse_ctl_fill_super(struct super_block *sb, void *data, int silent) return 0; } -static int fuse_ctl_get_sb(struct file_system_type *fs_type, int flags, - const char *dev_name, void *raw_data, - struct vfsmount *mnt) +static struct dentry *fuse_ctl_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *raw_data) { - return get_sb_single(fs_type, flags, raw_data, - fuse_ctl_fill_super, mnt); + return mount_single(fs_type, flags, raw_data, fuse_ctl_fill_super); } static void fuse_ctl_kill_sb(struct super_block *sb) @@ -346,7 +344,7 @@ static void fuse_ctl_kill_sb(struct super_block *sb) static struct file_system_type fuse_ctl_fs_type = { .owner = THIS_MODULE, .name = "fusectl", - .get_sb = fuse_ctl_get_sb, + .mount = fuse_ctl_mount, .kill_sb = fuse_ctl_kill_sb, }; diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index da9e6e1..cfce3ad 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -1041,11 +1041,11 @@ static int fuse_fill_super(struct super_block *sb, void *data, int silent) return err; } -static int fuse_get_sb(struct file_system_type *fs_type, +static struct dentry *fuse_mount(struct file_system_type *fs_type, int flags, const char *dev_name, - void *raw_data, struct vfsmount *mnt) + void *raw_data) { - return get_sb_nodev(fs_type, flags, raw_data, fuse_fill_super, mnt); + return mount_nodev(fs_type, flags, raw_data, fuse_fill_super); } static void fuse_kill_sb_anon(struct super_block *sb) @@ -1065,17 +1065,16 @@ static struct file_system_type fuse_fs_type = { .owner = THIS_MODULE, .name = "fuse", .fs_flags = FS_HAS_SUBTYPE, - .get_sb = fuse_get_sb, + .mount = fuse_mount, .kill_sb = fuse_kill_sb_anon, }; #ifdef CONFIG_BLOCK -static int fuse_get_sb_blk(struct file_system_type *fs_type, +static struct dentry *fuse_mount_blk(struct file_system_type *fs_type, int flags, const char *dev_name, - void *raw_data, struct vfsmount *mnt) + void *raw_data) { - return get_sb_bdev(fs_type, flags, dev_name, raw_data, fuse_fill_super, - mnt); + return mount_bdev(fs_type, flags, dev_name, raw_data, fuse_fill_super); } static void fuse_kill_sb_blk(struct super_block *sb) @@ -1094,7 +1093,7 @@ static void fuse_kill_sb_blk(struct super_block *sb) static struct file_system_type fuseblk_fs_type = { .owner = THIS_MODULE, .name = "fuseblk", - .get_sb = fuse_get_sb_blk, + .mount = fuse_mount_blk, .kill_sb = fuse_kill_sb_blk, .fs_flags = FS_REQUIRES_DEV | FS_HAS_SUBTYPE, }; diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c index cade1ac..3eb1393 100644 --- a/fs/gfs2/ops_fstype.c +++ b/fs/gfs2/ops_fstype.c @@ -1250,12 +1250,11 @@ static int test_gfs2_super(struct super_block *s, void *ptr) } /** - * gfs2_get_sb - Get the GFS2 superblock + * gfs2_mount - Get the GFS2 superblock * @fs_type: The GFS2 filesystem type * @flags: Mount flags * @dev_name: The name of the device * @data: The mount arguments - * @mnt: The vfsmnt for this mount * * Q. Why not use get_sb_bdev() ? * A. We need to select one of two root directories to mount, independent @@ -1264,8 +1263,8 @@ static int test_gfs2_super(struct super_block *s, void *ptr) * Returns: 0 or -ve on error */ -static int gfs2_get_sb(struct file_system_type *fs_type, int flags, - const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *gfs2_mount(struct file_system_type *fs_type, int flags, + const char *dev_name, void *data) { struct block_device *bdev; struct super_block *s; @@ -1279,7 +1278,7 @@ static int gfs2_get_sb(struct file_system_type *fs_type, int flags, bdev = open_bdev_exclusive(dev_name, mode, fs_type); if (IS_ERR(bdev)) - return PTR_ERR(bdev); + return ERR_CAST(bdev); /* * once the super is inserted into the list by sget, s_umount @@ -1298,6 +1297,9 @@ static int gfs2_get_sb(struct file_system_type *fs_type, int flags, if (IS_ERR(s)) goto error_bdev; + if (s->s_root) + close_bdev_exclusive(bdev, mode); + memset(&args, 0, sizeof(args)); args.ar_quota = GFS2_QUOTA_DEFAULT; args.ar_data = GFS2_DATA_DEFAULT; @@ -1309,17 +1311,13 @@ static int gfs2_get_sb(struct file_system_type *fs_type, int flags, error = gfs2_mount_args(&args, data); if (error) { printk(KERN_WARNING "GFS2: can't parse mount arguments\n"); - if (s->s_root) - goto error_super; - deactivate_locked_super(s); - return error; + goto error_super; } if (s->s_root) { error = -EBUSY; if ((flags ^ s->s_flags) & MS_RDONLY) goto error_super; - close_bdev_exclusive(bdev, mode); } else { char b[BDEVNAME_SIZE]; @@ -1328,27 +1326,24 @@ static int gfs2_get_sb(struct file_system_type *fs_type, int flags, strlcpy(s->s_id, bdevname(bdev, b), sizeof(s->s_id)); sb_set_blocksize(s, block_size(bdev)); error = fill_super(s, &args, flags & MS_SILENT ? 1 : 0); - if (error) { - deactivate_locked_super(s); - return error; - } + if (error) + goto error_super; s->s_flags |= MS_ACTIVE; bdev->bd_super = s; } sdp = s->s_fs_info; - mnt->mnt_sb = s; if (args.ar_meta) - mnt->mnt_root = dget(sdp->sd_master_dir); + return dget(sdp->sd_master_dir); else - mnt->mnt_root = dget(sdp->sd_root_dir); - return 0; + return dget(sdp->sd_root_dir); error_super: deactivate_locked_super(s); + return ERR_PTR(error); error_bdev: close_bdev_exclusive(bdev, mode); - return error; + return ERR_PTR(error); } static int set_meta_super(struct super_block *s, void *ptr) @@ -1356,8 +1351,8 @@ static int set_meta_super(struct super_block *s, void *ptr) return -EINVAL; } -static int gfs2_get_sb_meta(struct file_system_type *fs_type, int flags, - const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *gfs2_mount_meta(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { struct super_block *s; struct gfs2_sbd *sdp; @@ -1368,23 +1363,21 @@ static int gfs2_get_sb_meta(struct file_system_type *fs_type, int flags, if (error) { printk(KERN_WARNING "GFS2: path_lookup on %s returned error %d\n", dev_name, error); - return error; + return ERR_PTR(error); } s = sget(&gfs2_fs_type, test_gfs2_super, set_meta_super, path.dentry->d_inode->i_sb->s_bdev); path_put(&path); if (IS_ERR(s)) { printk(KERN_WARNING "GFS2: gfs2 mount does not exist\n"); - return PTR_ERR(s); + return ERR_CAST(s); } if ((flags ^ s->s_flags) & MS_RDONLY) { deactivate_locked_super(s); - return -EBUSY; + return ERR_PTR(-EBUSY); } sdp = s->s_fs_info; - mnt->mnt_sb = s; - mnt->mnt_root = dget(sdp->sd_master_dir); - return 0; + return dget(sdp->sd_master_dir); } static void gfs2_kill_sb(struct super_block *sb) @@ -1410,7 +1403,7 @@ static void gfs2_kill_sb(struct super_block *sb) struct file_system_type gfs2_fs_type = { .name = "gfs2", .fs_flags = FS_REQUIRES_DEV, - .get_sb = gfs2_get_sb, + .mount = gfs2_mount, .kill_sb = gfs2_kill_sb, .owner = THIS_MODULE, }; @@ -1418,7 +1411,7 @@ struct file_system_type gfs2_fs_type = { struct file_system_type gfs2meta_fs_type = { .name = "gfs2meta", .fs_flags = FS_REQUIRES_DEV, - .get_sb = gfs2_get_sb_meta, + .mount = gfs2_mount_meta, .owner = THIS_MODULE, }; diff --git a/fs/hfs/super.c b/fs/hfs/super.c index 6ee1586..4824c27 100644 --- a/fs/hfs/super.c +++ b/fs/hfs/super.c @@ -441,17 +441,16 @@ bail: return res; } -static int hfs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, - struct vfsmount *mnt) +static struct dentry *hfs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_bdev(fs_type, flags, dev_name, data, hfs_fill_super, mnt); + return mount_bdev(fs_type, flags, dev_name, data, hfs_fill_super); } static struct file_system_type hfs_fs_type = { .owner = THIS_MODULE, .name = "hfs", - .get_sb = hfs_get_sb, + .mount = hfs_mount, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c index 9a88d75..52cc746 100644 --- a/fs/hfsplus/super.c +++ b/fs/hfsplus/super.c @@ -495,18 +495,16 @@ static void hfsplus_destroy_inode(struct inode *inode) #define HFSPLUS_INODE_SIZE sizeof(struct hfsplus_inode_info) -static int hfsplus_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, - struct vfsmount *mnt) +static struct dentry *hfsplus_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_bdev(fs_type, flags, dev_name, data, hfsplus_fill_super, - mnt); + return mount_bdev(fs_type, flags, dev_name, data, hfsplus_fill_super); } static struct file_system_type hfsplus_fs_type = { .owner = THIS_MODULE, .name = "hfsplus", - .get_sb = hfsplus_get_sb, + .mount = hfsplus_mount, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c index cd7c939..2c0f148 100644 --- a/fs/hostfs/hostfs_kern.c +++ b/fs/hostfs/hostfs_kern.c @@ -962,11 +962,11 @@ out: return err; } -static int hostfs_read_sb(struct file_system_type *type, +static struct dentry *hostfs_read_sb(struct file_system_type *type, int flags, const char *dev_name, - void *data, struct vfsmount *mnt) + void *data) { - return get_sb_nodev(type, flags, data, hostfs_fill_sb_common, mnt); + return mount_nodev(type, flags, data, hostfs_fill_sb_common); } static void hostfs_kill_sb(struct super_block *s) @@ -978,7 +978,7 @@ static void hostfs_kill_sb(struct super_block *s) static struct file_system_type hostfs_type = { .owner = THIS_MODULE, .name = "hostfs", - .get_sb = hostfs_read_sb, + .mount = hostfs_read_sb, .kill_sb = hostfs_kill_sb, .fs_flags = 0, }; diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c index c969a1a..bb69389 100644 --- a/fs/hpfs/super.c +++ b/fs/hpfs/super.c @@ -686,17 +686,16 @@ bail0: return -EINVAL; } -static int hpfs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *hpfs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_bdev(fs_type, flags, dev_name, data, hpfs_fill_super, - mnt); + return mount_bdev(fs_type, flags, dev_name, data, hpfs_fill_super); } static struct file_system_type hpfs_fs_type = { .owner = THIS_MODULE, .name = "hpfs", - .get_sb = hpfs_get_sb, + .mount = hpfs_mount, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; diff --git a/fs/hppfs/hppfs.c b/fs/hppfs/hppfs.c index 4e2a45e..f702b5f 100644 --- a/fs/hppfs/hppfs.c +++ b/fs/hppfs/hppfs.c @@ -748,17 +748,17 @@ static int hppfs_fill_super(struct super_block *sb, void *d, int silent) return(err); } -static int hppfs_read_super(struct file_system_type *type, +static struct dentry *hppfs_read_super(struct file_system_type *type, int flags, const char *dev_name, - void *data, struct vfsmount *mnt) + void *data) { - return get_sb_nodev(type, flags, data, hppfs_fill_super, mnt); + return mount_nodev(type, flags, data, hppfs_fill_super); } static struct file_system_type hppfs_type = { .owner = THIS_MODULE, .name = "hppfs", - .get_sb = hppfs_read_super, + .mount = hppfs_read_super, .kill_sb = kill_anon_super, .fs_flags = 0, }; diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index b14be3f..d6cfac1 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -896,15 +896,15 @@ void hugetlb_put_quota(struct address_space *mapping, long delta) } } -static int hugetlbfs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *hugetlbfs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_nodev(fs_type, flags, data, hugetlbfs_fill_super, mnt); + return mount_nodev(fs_type, flags, data, hugetlbfs_fill_super); } static struct file_system_type hugetlbfs_fs_type = { .name = "hugetlbfs", - .get_sb = hugetlbfs_get_sb, + .mount = hugetlbfs_mount, .kill_sb = kill_litter_super, }; diff --git a/fs/internal.h b/fs/internal.h index ebad3b9..e43b9a4 100644 --- a/fs/internal.h +++ b/fs/internal.h @@ -106,5 +106,5 @@ extern void release_open_intent(struct nameidata *); * inode.c */ extern int get_nr_dirty_inodes(void); -extern int evict_inodes(struct super_block *); +extern void evict_inodes(struct super_block *); extern int invalidate_inodes(struct super_block *); diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c index 79cf7f61..bfdeb82 100644 --- a/fs/isofs/inode.c +++ b/fs/isofs/inode.c @@ -1507,17 +1507,16 @@ struct inode *isofs_iget(struct super_block *sb, return inode; } -static int isofs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *isofs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_bdev(fs_type, flags, dev_name, data, isofs_fill_super, - mnt); + return mount_bdev(fs_type, flags, dev_name, data, isofs_fill_super); } static struct file_system_type iso9660_fs_type = { .owner = THIS_MODULE, .name = "iso9660", - .get_sb = isofs_get_sb, + .mount = isofs_mount, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; diff --git a/fs/jffs2/super.c b/fs/jffs2/super.c index d1ae5df..c86041b 100644 --- a/fs/jffs2/super.c +++ b/fs/jffs2/super.c @@ -179,12 +179,11 @@ static int jffs2_fill_super(struct super_block *sb, void *data, int silent) return ret; } -static int jffs2_get_sb(struct file_system_type *fs_type, +static struct dentry *jffs2_mount(struct file_system_type *fs_type, int flags, const char *dev_name, - void *data, struct vfsmount *mnt) + void *data) { - return get_sb_mtd(fs_type, flags, dev_name, data, jffs2_fill_super, - mnt); + return mount_mtd(fs_type, flags, dev_name, data, jffs2_fill_super); } static void jffs2_put_super (struct super_block *sb) @@ -229,7 +228,7 @@ static void jffs2_kill_sb(struct super_block *sb) static struct file_system_type jffs2_fs_type = { .owner = THIS_MODULE, .name = "jffs2", - .get_sb = jffs2_get_sb, + .mount = jffs2_mount, .kill_sb = jffs2_kill_sb, }; diff --git a/fs/jfs/super.c b/fs/jfs/super.c index 68eee2b..0669fc1 100644 --- a/fs/jfs/super.c +++ b/fs/jfs/super.c @@ -583,11 +583,10 @@ static int jfs_unfreeze(struct super_block *sb) return 0; } -static int jfs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *jfs_do_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_bdev(fs_type, flags, dev_name, data, jfs_fill_super, - mnt); + return mount_bdev(fs_type, flags, dev_name, data, jfs_fill_super); } static int jfs_sync_fs(struct super_block *sb, int wait) @@ -770,7 +769,7 @@ static const struct export_operations jfs_export_operations = { static struct file_system_type jfs_fs_type = { .owner = THIS_MODULE, .name = "jfs", - .get_sb = jfs_get_sb, + .mount = jfs_do_mount, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; @@ -201,9 +201,8 @@ static const struct super_operations simple_super_operations = { * Common helper for pseudo-filesystems (sockfs, pipefs, bdev - stuff that * will never be mountable) */ -int get_sb_pseudo(struct file_system_type *fs_type, char *name, - const struct super_operations *ops, unsigned long magic, - struct vfsmount *mnt) +struct dentry *mount_pseudo(struct file_system_type *fs_type, char *name, + const struct super_operations *ops, unsigned long magic) { struct super_block *s = sget(fs_type, NULL, set_anon_super, NULL); struct dentry *dentry; @@ -211,7 +210,7 @@ int get_sb_pseudo(struct file_system_type *fs_type, char *name, struct qstr d_name = {.name = name, .len = strlen(name)}; if (IS_ERR(s)) - return PTR_ERR(s); + return ERR_CAST(s); s->s_flags = MS_NOUSER; s->s_maxbytes = MAX_LFS_FILESIZE; @@ -241,12 +240,11 @@ int get_sb_pseudo(struct file_system_type *fs_type, char *name, d_instantiate(dentry, root); s->s_root = dentry; s->s_flags |= MS_ACTIVE; - simple_set_mnt(mnt, s); - return 0; + return dget(s->s_root); Enomem: deactivate_locked_super(s); - return -ENOMEM; + return ERR_PTR(-ENOMEM); } int simple_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry) @@ -951,7 +949,7 @@ EXPORT_SYMBOL(dcache_dir_lseek); EXPORT_SYMBOL(dcache_dir_open); EXPORT_SYMBOL(dcache_readdir); EXPORT_SYMBOL(generic_read_dir); -EXPORT_SYMBOL(get_sb_pseudo); +EXPORT_SYMBOL(mount_pseudo); EXPORT_SYMBOL(simple_write_begin); EXPORT_SYMBOL(simple_write_end); EXPORT_SYMBOL(simple_dir_inode_operations); diff --git a/fs/logfs/dev_bdev.c b/fs/logfs/dev_bdev.c index 9bd2ce2..92ca6fb 100644 --- a/fs/logfs/dev_bdev.c +++ b/fs/logfs/dev_bdev.c @@ -298,9 +298,9 @@ static int bdev_write_sb(struct super_block *sb, struct page *page) return sync_request(page, bdev, WRITE); } -static void bdev_put_device(struct super_block *sb) +static void bdev_put_device(struct logfs_super *s) { - close_bdev_exclusive(logfs_super(sb)->s_bdev, FMODE_READ|FMODE_WRITE); + close_bdev_exclusive(s->s_bdev, FMODE_READ|FMODE_WRITE); } static int bdev_can_write_buf(struct super_block *sb, u64 ofs) @@ -320,8 +320,8 @@ static const struct logfs_device_ops bd_devops = { .put_device = bdev_put_device, }; -int logfs_get_sb_bdev(struct file_system_type *type, int flags, - const char *devname, struct vfsmount *mnt) +int logfs_get_sb_bdev(struct logfs_super *p, struct file_system_type *type, + const char *devname) { struct block_device *bdev; @@ -332,8 +332,11 @@ int logfs_get_sb_bdev(struct file_system_type *type, int flags, if (MAJOR(bdev->bd_dev) == MTD_BLOCK_MAJOR) { int mtdnr = MINOR(bdev->bd_dev); close_bdev_exclusive(bdev, FMODE_READ|FMODE_WRITE); - return logfs_get_sb_mtd(type, flags, mtdnr, mnt); + return logfs_get_sb_mtd(p, mtdnr); } - return logfs_get_sb_device(type, flags, NULL, bdev, &bd_devops, mnt); + p->s_bdev = bdev; + p->s_mtd = NULL; + p->s_devops = &bd_devops; + return 0; } diff --git a/fs/logfs/dev_mtd.c b/fs/logfs/dev_mtd.c index a85d47d..7466e9d 100644 --- a/fs/logfs/dev_mtd.c +++ b/fs/logfs/dev_mtd.c @@ -230,9 +230,9 @@ static void mtd_writeseg(struct super_block *sb, u64 ofs, size_t len) __mtd_writeseg(sb, ofs, ofs >> PAGE_SHIFT, len >> PAGE_SHIFT); } -static void mtd_put_device(struct super_block *sb) +static void mtd_put_device(struct logfs_super *s) { - put_mtd_device(logfs_super(sb)->s_mtd); + put_mtd_device(s->s_mtd); } static int mtd_can_write_buf(struct super_block *sb, u64 ofs) @@ -265,14 +265,14 @@ static const struct logfs_device_ops mtd_devops = { .put_device = mtd_put_device, }; -int logfs_get_sb_mtd(struct file_system_type *type, int flags, - int mtdnr, struct vfsmount *mnt) +int logfs_get_sb_mtd(struct logfs_super *s, int mtdnr) { - struct mtd_info *mtd; - const struct logfs_device_ops *devops = &mtd_devops; - - mtd = get_mtd_device(NULL, mtdnr); + struct mtd_info *mtd = get_mtd_device(NULL, mtdnr); if (IS_ERR(mtd)) return PTR_ERR(mtd); - return logfs_get_sb_device(type, flags, mtd, NULL, devops, mnt); + + s->s_bdev = NULL; + s->s_mtd = mtd; + s->s_devops = &mtd_devops; + return 0; } diff --git a/fs/logfs/logfs.h b/fs/logfs/logfs.h index b878626..cd51a36 100644 --- a/fs/logfs/logfs.h +++ b/fs/logfs/logfs.h @@ -136,6 +136,7 @@ struct logfs_area_ops { int (*erase_segment)(struct logfs_area *area); }; +struct logfs_super; /* forward */ /** * struct logfs_device_ops - device access operations * @@ -156,7 +157,7 @@ struct logfs_device_ops { int ensure_write); int (*can_write_buf)(struct super_block *sb, u64 ofs); void (*sync)(struct super_block *sb); - void (*put_device)(struct super_block *sb); + void (*put_device)(struct logfs_super *s); }; /** @@ -471,11 +472,13 @@ void logfs_compr_exit(void); /* dev_bdev.c */ #ifdef CONFIG_BLOCK -int logfs_get_sb_bdev(struct file_system_type *type, int flags, - const char *devname, struct vfsmount *mnt); +int logfs_get_sb_bdev(struct logfs_super *s, + struct file_system_type *type, + const char *devname); #else -static inline int logfs_get_sb_bdev(struct file_system_type *type, int flags, - const char *devname, struct vfsmount *mnt) +static inline int logfs_get_sb_bdev(struct logfs_super *s, + struct file_system_type *type, + const char *devname) { return -ENODEV; } @@ -483,11 +486,9 @@ static inline int logfs_get_sb_bdev(struct file_system_type *type, int flags, /* dev_mtd.c */ #ifdef CONFIG_MTD -int logfs_get_sb_mtd(struct file_system_type *type, int flags, - int mtdnr, struct vfsmount *mnt); +int logfs_get_sb_mtd(struct logfs_super *s, int mtdnr) #else -static inline int logfs_get_sb_mtd(struct file_system_type *type, int flags, - int mtdnr, struct vfsmount *mnt) +static inline int logfs_get_sb_mtd(struct logfs_super *s, int mtdnr) { return -ENODEV; } @@ -619,9 +620,6 @@ void emergency_read_end(struct page *page); void logfs_crash_dump(struct super_block *sb); void *memchr_inv(const void *s, int c, size_t n); int logfs_statfs(struct dentry *dentry, struct kstatfs *stats); -int logfs_get_sb_device(struct file_system_type *type, int flags, - struct mtd_info *mtd, struct block_device *bdev, - const struct logfs_device_ops *devops, struct vfsmount *mnt); int logfs_check_ds(struct logfs_disk_super *ds); int logfs_write_sb(struct super_block *sb); diff --git a/fs/logfs/super.c b/fs/logfs/super.c index 5336155..33435e4 100644 --- a/fs/logfs/super.c +++ b/fs/logfs/super.c @@ -325,7 +325,7 @@ static int logfs_make_writeable(struct super_block *sb) return 0; } -static int logfs_get_sb_final(struct super_block *sb, struct vfsmount *mnt) +static int logfs_get_sb_final(struct super_block *sb) { struct logfs_super *super = logfs_super(sb); struct inode *rootdir; @@ -356,7 +356,6 @@ static int logfs_get_sb_final(struct super_block *sb, struct vfsmount *mnt) } log_super("LogFS: Finished mounting\n"); - simple_set_mnt(mnt, sb); return 0; fail: @@ -529,43 +528,37 @@ static void logfs_kill_sb(struct super_block *sb) logfs_cleanup_rw(sb); if (super->s_erase_page) __free_page(super->s_erase_page); - super->s_devops->put_device(sb); + super->s_devops->put_device(super); logfs_mempool_destroy(super->s_btree_pool); logfs_mempool_destroy(super->s_alias_pool); kfree(super); log_super("LogFS: Finished unmounting\n"); } -int logfs_get_sb_device(struct file_system_type *type, int flags, - struct mtd_info *mtd, struct block_device *bdev, - const struct logfs_device_ops *devops, struct vfsmount *mnt) +static struct dentry *logfs_get_sb_device(struct logfs_super *super, + struct file_system_type *type, int flags) { - struct logfs_super *super; struct super_block *sb; int err = -ENOMEM; static int mount_count; log_super("LogFS: Start mount %x\n", mount_count++); - super = kzalloc(sizeof(*super), GFP_KERNEL); - if (!super) - goto err0; - super->s_mtd = mtd; - super->s_bdev = bdev; err = -EINVAL; sb = sget(type, logfs_sb_test, logfs_sb_set, super); - if (IS_ERR(sb)) - goto err0; + if (IS_ERR(sb)) { + super->s_devops->put_device(super); + kfree(super); + return ERR_CAST(sb); + } if (sb->s_root) { /* Device is already in use */ - err = 0; - simple_set_mnt(mnt, sb); - goto err0; + super->s_devops->put_device(super); + kfree(super); + return dget(sb->s_root); } - super->s_devops = devops; - /* * sb->s_maxbytes is limited to 8TB. On 32bit systems, the page cache * only covers 16TB and the upper 8TB are used for indirect blocks. @@ -581,10 +574,12 @@ int logfs_get_sb_device(struct file_system_type *type, int flags, goto err1; sb->s_flags |= MS_ACTIVE; - err = logfs_get_sb_final(sb, mnt); - if (err) + err = logfs_get_sb_final(sb); + if (err) { deactivate_locked_super(sb); - return err; + return ERR_PTR(err); + } + return dget(sb->s_root); err1: /* no ->s_root, no ->put_super() */ @@ -592,37 +587,45 @@ err1: iput(super->s_segfile_inode); iput(super->s_mapping_inode); deactivate_locked_super(sb); - return err; -err0: - kfree(super); - //devops->put_device(sb); - return err; + return ERR_PTR(err); } -static int logfs_get_sb(struct file_system_type *type, int flags, - const char *devname, void *data, struct vfsmount *mnt) +static struct dentry *logfs_mount(struct file_system_type *type, int flags, + const char *devname, void *data) { ulong mtdnr; + struct logfs_super *super; + int err; - if (!devname) - return logfs_get_sb_bdev(type, flags, devname, mnt); - if (strncmp(devname, "mtd", 3)) - return logfs_get_sb_bdev(type, flags, devname, mnt); + super = kzalloc(sizeof(*super), GFP_KERNEL); + if (!super) + return ERR_PTR(-ENOMEM); - { + if (!devname) + err = logfs_get_sb_bdev(super, type, devname); + else if (strncmp(devname, "mtd", 3)) + err = logfs_get_sb_bdev(super, type, devname); + else { char *garbage; mtdnr = simple_strtoul(devname+3, &garbage, 0); if (*garbage) - return -EINVAL; + err = -EINVAL; + else + err = logfs_get_sb_mtd(super, mtdnr); + } + + if (err) { + kfree(super); + return ERR_PTR(err); } - return logfs_get_sb_mtd(type, flags, mtdnr, mnt); + return logfs_get_sb_device(super, type, flags); } static struct file_system_type logfs_fs_type = { .owner = THIS_MODULE, .name = "logfs", - .get_sb = logfs_get_sb, + .mount = logfs_mount, .kill_sb = logfs_kill_sb, .fs_flags = FS_REQUIRES_DEV, diff --git a/fs/minix/inode.c b/fs/minix/inode.c index e39d6bf..fb20208 100644 --- a/fs/minix/inode.c +++ b/fs/minix/inode.c @@ -614,17 +614,16 @@ void minix_truncate(struct inode * inode) V2_minix_truncate(inode); } -static int minix_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *minix_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_bdev(fs_type, flags, dev_name, data, minix_fill_super, - mnt); + return mount_bdev(fs_type, flags, dev_name, data, minix_fill_super); } static struct file_system_type minix_fs_type = { .owner = THIS_MODULE, .name = "minix", - .get_sb = minix_get_sb, + .mount = minix_mount, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; @@ -1574,6 +1574,7 @@ static struct file *finish_open(struct nameidata *nd, */ if (will_truncate) mnt_drop_write(nd->path.mnt); + path_put(&nd->path); return filp; exit: @@ -1675,6 +1676,7 @@ static struct file *do_last(struct nameidata *nd, struct path *path, } filp = nameidata_to_filp(nd); mnt_drop_write(nd->path.mnt); + path_put(&nd->path); if (!IS_ERR(filp)) { error = ima_file_check(filp, acc_mode); if (error) { diff --git a/fs/ncpfs/inode.c b/fs/ncpfs/inode.c index 985fabb..d290545 100644 --- a/fs/ncpfs/inode.c +++ b/fs/ncpfs/inode.c @@ -1020,16 +1020,16 @@ out: return result; } -static int ncp_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *ncp_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_nodev(fs_type, flags, data, ncp_fill_super, mnt); + return mount_nodev(fs_type, flags, data, ncp_fill_super); } static struct file_system_type ncp_fs_type = { .owner = THIS_MODULE, .name = "ncpfs", - .get_sb = ncp_get_sb, + .mount = ncp_mount, .kill_sb = kill_anon_super, .fs_flags = FS_BINARY_MOUNTDATA, }; diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 3600ec7..0a42e8f 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -260,8 +260,8 @@ static int nfs_statfs(struct dentry *, struct kstatfs *); static int nfs_show_options(struct seq_file *, struct vfsmount *); static int nfs_show_stats(struct seq_file *, struct vfsmount *); static int nfs_get_sb(struct file_system_type *, int, const char *, void *, struct vfsmount *); -static int nfs_xdev_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *raw_data, struct vfsmount *mnt); +static struct dentry *nfs_xdev_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *raw_data); static void nfs_put_super(struct super_block *); static void nfs_kill_super(struct super_block *); static int nfs_remount(struct super_block *sb, int *flags, char *raw_data); @@ -277,7 +277,7 @@ static struct file_system_type nfs_fs_type = { struct file_system_type nfs_xdev_fs_type = { .owner = THIS_MODULE, .name = "nfs", - .get_sb = nfs_xdev_get_sb, + .mount = nfs_xdev_mount, .kill_sb = nfs_kill_super, .fs_flags = FS_RENAME_DOES_D_MOVE|FS_REVAL_DOT|FS_BINARY_MOUNTDATA, }; @@ -302,14 +302,14 @@ static int nfs4_try_mount(int flags, const char *dev_name, struct nfs_parsed_mount_data *data, struct vfsmount *mnt); static int nfs4_get_sb(struct file_system_type *fs_type, int flags, const char *dev_name, void *raw_data, struct vfsmount *mnt); -static int nfs4_remote_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *raw_data, struct vfsmount *mnt); -static int nfs4_xdev_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *raw_data, struct vfsmount *mnt); +static struct dentry *nfs4_remote_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *raw_data); +static struct dentry *nfs4_xdev_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *raw_data); static int nfs4_referral_get_sb(struct file_system_type *fs_type, int flags, const char *dev_name, void *raw_data, struct vfsmount *mnt); -static int nfs4_remote_referral_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *raw_data, struct vfsmount *mnt); +static struct dentry *nfs4_remote_referral_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *raw_data); static void nfs4_kill_super(struct super_block *sb); static struct file_system_type nfs4_fs_type = { @@ -323,7 +323,7 @@ static struct file_system_type nfs4_fs_type = { static struct file_system_type nfs4_remote_fs_type = { .owner = THIS_MODULE, .name = "nfs4", - .get_sb = nfs4_remote_get_sb, + .mount = nfs4_remote_mount, .kill_sb = nfs4_kill_super, .fs_flags = FS_RENAME_DOES_D_MOVE|FS_REVAL_DOT|FS_BINARY_MOUNTDATA, }; @@ -331,7 +331,7 @@ static struct file_system_type nfs4_remote_fs_type = { struct file_system_type nfs4_xdev_fs_type = { .owner = THIS_MODULE, .name = "nfs4", - .get_sb = nfs4_xdev_get_sb, + .mount = nfs4_xdev_mount, .kill_sb = nfs4_kill_super, .fs_flags = FS_RENAME_DOES_D_MOVE|FS_REVAL_DOT|FS_BINARY_MOUNTDATA, }; @@ -339,7 +339,7 @@ struct file_system_type nfs4_xdev_fs_type = { static struct file_system_type nfs4_remote_referral_fs_type = { .owner = THIS_MODULE, .name = "nfs4", - .get_sb = nfs4_remote_referral_get_sb, + .mount = nfs4_remote_referral_mount, .kill_sb = nfs4_kill_super, .fs_flags = FS_RENAME_DOES_D_MOVE|FS_REVAL_DOT|FS_BINARY_MOUNTDATA, }; @@ -2397,9 +2397,9 @@ static void nfs_kill_super(struct super_block *s) /* * Clone an NFS2/3 server record on xdev traversal (FSID-change) */ -static int nfs_xdev_get_sb(struct file_system_type *fs_type, int flags, - const char *dev_name, void *raw_data, - struct vfsmount *mnt) +static struct dentry * +nfs_xdev_mount(struct file_system_type *fs_type, int flags, + const char *dev_name, void *raw_data) { struct nfs_clone_mount *data = raw_data; struct super_block *s; @@ -2411,7 +2411,7 @@ static int nfs_xdev_get_sb(struct file_system_type *fs_type, int flags, }; int error; - dprintk("--> nfs_xdev_get_sb()\n"); + dprintk("--> nfs_xdev_mount()\n"); /* create a new volume representation */ server = nfs_clone_server(NFS_SB(data->sb), data->fh, data->fattr); @@ -2458,28 +2458,26 @@ static int nfs_xdev_get_sb(struct file_system_type *fs_type, int flags, } s->s_flags |= MS_ACTIVE; - mnt->mnt_sb = s; - mnt->mnt_root = mntroot; /* clone any lsm security options from the parent to the new sb */ security_sb_clone_mnt_opts(data->sb, s); - dprintk("<-- nfs_xdev_get_sb() = 0\n"); - return 0; + dprintk("<-- nfs_xdev_mount() = 0\n"); + return mntroot; out_err_nosb: nfs_free_server(server); out_err_noserver: - dprintk("<-- nfs_xdev_get_sb() = %d [error]\n", error); - return error; + dprintk("<-- nfs_xdev_mount() = %d [error]\n", error); + return ERR_PTR(error); error_splat_super: if (server && !s->s_root) bdi_unregister(&server->backing_dev_info); error_splat_bdi: deactivate_locked_super(s); - dprintk("<-- nfs_xdev_get_sb() = %d [splat]\n", error); - return error; + dprintk("<-- nfs_xdev_mount() = %d [splat]\n", error); + return ERR_PTR(error); } #ifdef CONFIG_NFS_V4 @@ -2649,8 +2647,9 @@ out_no_address: /* * Get the superblock for the NFS4 root partition */ -static int nfs4_remote_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *raw_data, struct vfsmount *mnt) +static struct dentry * +nfs4_remote_mount(struct file_system_type *fs_type, int flags, + const char *dev_name, void *raw_data) { struct nfs_parsed_mount_data *data = raw_data; struct super_block *s; @@ -2714,15 +2713,16 @@ static int nfs4_remote_get_sb(struct file_system_type *fs_type, goto error_splat_root; s->s_flags |= MS_ACTIVE; - mnt->mnt_sb = s; - mnt->mnt_root = mntroot; - error = 0; + + security_free_mnt_opts(&data->lsm_opts); + nfs_free_fhandle(mntfh); + return mntroot; out: security_free_mnt_opts(&data->lsm_opts); out_free_fh: nfs_free_fhandle(mntfh); - return error; + return ERR_PTR(error); out_free: nfs_free_server(server); @@ -2968,9 +2968,9 @@ static void nfs4_kill_super(struct super_block *sb) /* * Clone an NFS4 server record on xdev traversal (FSID-change) */ -static int nfs4_xdev_get_sb(struct file_system_type *fs_type, int flags, - const char *dev_name, void *raw_data, - struct vfsmount *mnt) +static struct dentry * +nfs4_xdev_mount(struct file_system_type *fs_type, int flags, + const char *dev_name, void *raw_data) { struct nfs_clone_mount *data = raw_data; struct super_block *s; @@ -2982,7 +2982,7 @@ static int nfs4_xdev_get_sb(struct file_system_type *fs_type, int flags, }; int error; - dprintk("--> nfs4_xdev_get_sb()\n"); + dprintk("--> nfs4_xdev_mount()\n"); /* create a new volume representation */ server = nfs_clone_server(NFS_SB(data->sb), data->fh, data->fattr); @@ -3029,32 +3029,30 @@ static int nfs4_xdev_get_sb(struct file_system_type *fs_type, int flags, } s->s_flags |= MS_ACTIVE; - mnt->mnt_sb = s; - mnt->mnt_root = mntroot; security_sb_clone_mnt_opts(data->sb, s); - dprintk("<-- nfs4_xdev_get_sb() = 0\n"); - return 0; + dprintk("<-- nfs4_xdev_mount() = 0\n"); + return mntroot; out_err_nosb: nfs_free_server(server); out_err_noserver: - dprintk("<-- nfs4_xdev_get_sb() = %d [error]\n", error); - return error; + dprintk("<-- nfs4_xdev_mount() = %d [error]\n", error); + return ERR_PTR(error); error_splat_super: if (server && !s->s_root) bdi_unregister(&server->backing_dev_info); error_splat_bdi: deactivate_locked_super(s); - dprintk("<-- nfs4_xdev_get_sb() = %d [splat]\n", error); - return error; + dprintk("<-- nfs4_xdev_mount() = %d [splat]\n", error); + return ERR_PTR(error); } -static int nfs4_remote_referral_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *raw_data, - struct vfsmount *mnt) +static struct dentry * +nfs4_remote_referral_mount(struct file_system_type *fs_type, int flags, + const char *dev_name, void *raw_data) { struct nfs_clone_mount *data = raw_data; struct super_block *s; @@ -3118,14 +3116,12 @@ static int nfs4_remote_referral_get_sb(struct file_system_type *fs_type, } s->s_flags |= MS_ACTIVE; - mnt->mnt_sb = s; - mnt->mnt_root = mntroot; security_sb_clone_mnt_opts(data->sb, s); nfs_free_fhandle(mntfh); dprintk("<-- nfs4_referral_get_sb() = 0\n"); - return 0; + return mntroot; out_err_nosb: nfs_free_server(server); @@ -3133,7 +3129,7 @@ out_err_noserver: nfs_free_fhandle(mntfh); out_err_nofh: dprintk("<-- nfs4_referral_get_sb() = %d [error]\n", error); - return error; + return ERR_PTR(error); error_splat_super: if (server && !s->s_root) @@ -3142,7 +3138,7 @@ error_splat_bdi: deactivate_locked_super(s); nfs_free_fhandle(mntfh); dprintk("<-- nfs4_referral_get_sb() = %d [splat]\n", error); - return error; + return ERR_PTR(error); } /* diff --git a/fs/nfs/unlink.c b/fs/nfs/unlink.c index 9a16bad..7bdec85 100644 --- a/fs/nfs/unlink.c +++ b/fs/nfs/unlink.c @@ -444,9 +444,9 @@ nfs_async_rename(struct inode *old_dir, struct inode *new_dir, /* set up nfs_renamedata */ data->old_dir = old_dir; - atomic_inc(&old_dir->i_count); + ihold(old_dir); data->new_dir = new_dir; - atomic_inc(&new_dir->i_count); + ihold(new_dir); data->old_dentry = dget(old_dentry); data->new_dentry = dget(new_dentry); nfs_fattr_init(&data->old_fattr); diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c index d6dc3f6..4514ebb 100644 --- a/fs/nfsd/nfsctl.c +++ b/fs/nfsd/nfsctl.c @@ -1405,16 +1405,16 @@ static int nfsd_fill_super(struct super_block * sb, void * data, int silent) return simple_fill_super(sb, 0x6e667364, nfsd_files); } -static int nfsd_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *nfsd_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_single(fs_type, flags, data, nfsd_fill_super, mnt); + return mount_single(fs_type, flags, data, nfsd_fill_super); } static struct file_system_type nfsd_fs_type = { .owner = THIS_MODULE, .name = "nfsd", - .get_sb = nfsd_get_sb, + .mount = nfsd_mount, .kill_sb = kill_litter_super, }; diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c index 35ae03c..f804d41 100644 --- a/fs/nilfs2/super.c +++ b/fs/nilfs2/super.c @@ -1141,9 +1141,9 @@ static int nilfs_test_bdev_super(struct super_block *s, void *data) return (void *)s->s_bdev == data; } -static int -nilfs_get_sb(struct file_system_type *fs_type, int flags, - const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry * +nilfs_mount(struct file_system_type *fs_type, int flags, + const char *dev_name, void *data) { struct nilfs_super_data sd; struct super_block *s; @@ -1156,7 +1156,7 @@ nilfs_get_sb(struct file_system_type *fs_type, int flags, sd.bdev = open_bdev_exclusive(dev_name, mode, fs_type); if (IS_ERR(sd.bdev)) - return PTR_ERR(sd.bdev); + return ERR_CAST(sd.bdev); sd.cno = 0; sd.flags = flags; @@ -1235,9 +1235,7 @@ nilfs_get_sb(struct file_system_type *fs_type, int flags, if (!s_new) close_bdev_exclusive(sd.bdev, mode); - mnt->mnt_sb = s; - mnt->mnt_root = root_dentry; - return 0; + return root_dentry; failed_super: deactivate_locked_super(s); @@ -1245,13 +1243,13 @@ nilfs_get_sb(struct file_system_type *fs_type, int flags, failed: if (!s_new) close_bdev_exclusive(sd.bdev, mode); - return err; + return ERR_PTR(err); } struct file_system_type nilfs_fs_type = { .owner = THIS_MODULE, .name = "nilfs2", - .get_sb = nilfs_get_sb, + .mount = nilfs_mount, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c index d3fbe57..a30ecacc 100644 --- a/fs/ntfs/super.c +++ b/fs/ntfs/super.c @@ -3059,17 +3059,16 @@ struct kmem_cache *ntfs_index_ctx_cache; /* Driver wide mutex. */ DEFINE_MUTEX(ntfs_lock); -static int ntfs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *ntfs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_bdev(fs_type, flags, dev_name, data, ntfs_fill_super, - mnt); + return mount_bdev(fs_type, flags, dev_name, data, ntfs_fill_super); } static struct file_system_type ntfs_fs_type = { .owner = THIS_MODULE, .name = "ntfs", - .get_sb = ntfs_get_sb, + .mount = ntfs_mount, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; diff --git a/fs/ocfs2/dlmfs/dlmfs.c b/fs/ocfs2/dlmfs/dlmfs.c index 75e115f..b2df490 100644 --- a/fs/ocfs2/dlmfs/dlmfs.c +++ b/fs/ocfs2/dlmfs/dlmfs.c @@ -643,16 +643,16 @@ static const struct inode_operations dlmfs_file_inode_operations = { .setattr = dlmfs_file_setattr, }; -static int dlmfs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *dlmfs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_nodev(fs_type, flags, data, dlmfs_fill_super, mnt); + return mount_nodev(fs_type, flags, data, dlmfs_fill_super); } static struct file_system_type dlmfs_fs_type = { .owner = THIS_MODULE, .name = "ocfs2_dlmfs", - .get_sb = dlmfs_get_sb, + .mount = dlmfs_mount, .kill_sb = kill_litter_super, }; diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c index 56f0cb3..f02c0ef 100644 --- a/fs/ocfs2/super.c +++ b/fs/ocfs2/super.c @@ -1236,14 +1236,12 @@ read_super_error: return status; } -static int ocfs2_get_sb(struct file_system_type *fs_type, +static struct dentry *ocfs2_mount(struct file_system_type *fs_type, int flags, const char *dev_name, - void *data, - struct vfsmount *mnt) + void *data) { - return get_sb_bdev(fs_type, flags, dev_name, data, ocfs2_fill_super, - mnt); + return mount_bdev(fs_type, flags, dev_name, data, ocfs2_fill_super); } static void ocfs2_kill_sb(struct super_block *sb) @@ -1267,8 +1265,7 @@ out: static struct file_system_type ocfs2_fs_type = { .owner = THIS_MODULE, .name = "ocfs2", - .get_sb = ocfs2_get_sb, /* is this called when we mount - * the fs? */ + .mount = ocfs2_mount, .kill_sb = ocfs2_kill_sb, .fs_flags = FS_REQUIRES_DEV|FS_RENAME_DOES_D_MOVE, diff --git a/fs/omfs/inode.c b/fs/omfs/inode.c index 14a2286..e043c4c 100644 --- a/fs/omfs/inode.c +++ b/fs/omfs/inode.c @@ -557,17 +557,16 @@ end: return ret; } -static int omfs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, - void *data, struct vfsmount *m) +static struct dentry *omfs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_bdev(fs_type, flags, dev_name, data, omfs_fill_super, m); + return mount_bdev(fs_type, flags, dev_name, data, omfs_fill_super); } static struct file_system_type omfs_fs_type = { .owner = THIS_MODULE, .name = "omfs", - .get_sb = omfs_get_sb, + .mount = omfs_mount, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; @@ -786,11 +786,11 @@ struct file *nameidata_to_filp(struct nameidata *nd) /* Pick up the filp from the open intent */ filp = nd->intent.open.file; /* Has the filesystem initialised the file for us? */ - if (filp->f_path.dentry == NULL) + if (filp->f_path.dentry == NULL) { + path_get(&nd->path); filp = __dentry_open(nd->path.dentry, nd->path.mnt, filp, NULL, cred); - else - path_put(&nd->path); + } return filp; } diff --git a/fs/openpromfs/inode.c b/fs/openpromfs/inode.c index ffcd04f..ddb1f41 100644 --- a/fs/openpromfs/inode.c +++ b/fs/openpromfs/inode.c @@ -415,16 +415,16 @@ out_no_root: return ret; } -static int openprom_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *openprom_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_single(fs_type, flags, data, openprom_fill_super, mnt); + return mount_single(fs_type, flags, data, openprom_fill_super) } static struct file_system_type openprom_fs_type = { .owner = THIS_MODULE, .name = "openpromfs", - .get_sb = openprom_get_sb, + .mount = openprom_mount, .kill_sb = kill_anon_super, }; @@ -1247,16 +1247,15 @@ out: * any operations on the root directory. However, we need a non-trivial * d_name - pipe: will go nicely and kill the special-casing in procfs. */ -static int pipefs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, - struct vfsmount *mnt) +static struct dentry *pipefs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_pseudo(fs_type, "pipe:", NULL, PIPEFS_MAGIC, mnt); + return mount_pseudo(fs_type, "pipe:", NULL, PIPEFS_MAGIC); } static struct file_system_type pipe_fs_type = { .name = "pipefs", - .get_sb = pipefs_get_sb, + .mount = pipefs_mount, .kill_sb = kill_anon_super, }; diff --git a/fs/proc/root.c b/fs/proc/root.c index 93d99b3..ef9fa8e 100644 --- a/fs/proc/root.c +++ b/fs/proc/root.c @@ -35,8 +35,8 @@ static int proc_set_super(struct super_block *sb, void *data) return set_anon_super(sb, NULL); } -static int proc_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *proc_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { int err; struct super_block *sb; @@ -61,14 +61,14 @@ static int proc_get_sb(struct file_system_type *fs_type, sb = sget(fs_type, proc_test_super, proc_set_super, ns); if (IS_ERR(sb)) - return PTR_ERR(sb); + return ERR_CAST(sb); if (!sb->s_root) { sb->s_flags = flags; err = proc_fill_super(sb); if (err) { deactivate_locked_super(sb); - return err; + return ERR_PTR(err); } ei = PROC_I(sb->s_root->d_inode); @@ -79,11 +79,9 @@ static int proc_get_sb(struct file_system_type *fs_type, } sb->s_flags |= MS_ACTIVE; - ns->proc_mnt = mnt; } - simple_set_mnt(mnt, sb); - return 0; + return dget(sb->s_root); } static void proc_kill_sb(struct super_block *sb) @@ -97,7 +95,7 @@ static void proc_kill_sb(struct super_block *sb) static struct file_system_type proc_fs_type = { .name = "proc", - .get_sb = proc_get_sb, + .mount = proc_mount, .kill_sb = proc_kill_sb, }; @@ -115,6 +113,7 @@ void __init proc_root_init(void) return; } + init_pid_ns.proc_mnt = proc_mnt; proc_symlink("mounts", NULL, "self/mounts"); proc_net_init(); @@ -213,6 +212,7 @@ int pid_ns_prepare_proc(struct pid_namespace *ns) if (IS_ERR(mnt)) return PTR_ERR(mnt); + ns->proc_mnt = mnt; return 0; } diff --git a/fs/qnx4/inode.c b/fs/qnx4/inode.c index 01bad30..fcada42 100644 --- a/fs/qnx4/inode.c +++ b/fs/qnx4/inode.c @@ -454,17 +454,16 @@ static void destroy_inodecache(void) kmem_cache_destroy(qnx4_inode_cachep); } -static int qnx4_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *qnx4_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_bdev(fs_type, flags, dev_name, data, qnx4_fill_super, - mnt); + return mount_bdev(fs_type, flags, dev_name, data, qnx4_fill_super); } static struct file_system_type qnx4_fs_type = { .owner = THIS_MODULE, .name = "qnx4", - .get_sb = qnx4_get_sb, + .mount = qnx4_mount, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; diff --git a/fs/ramfs/inode.c b/fs/ramfs/inode.c index 67fadb1..eacb166 100644 --- a/fs/ramfs/inode.c +++ b/fs/ramfs/inode.c @@ -255,17 +255,16 @@ fail: return err; } -int ramfs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +struct dentry *ramfs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_nodev(fs_type, flags, data, ramfs_fill_super, mnt); + return mount_nodev(fs_type, flags, data, ramfs_fill_super); } -static int rootfs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *rootfs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_nodev(fs_type, flags|MS_NOUSER, data, ramfs_fill_super, - mnt); + return mount_nodev(fs_type, flags|MS_NOUSER, data, ramfs_fill_super); } static void ramfs_kill_sb(struct super_block *sb) @@ -276,12 +275,12 @@ static void ramfs_kill_sb(struct super_block *sb) static struct file_system_type ramfs_fs_type = { .name = "ramfs", - .get_sb = ramfs_get_sb, + .mount = ramfs_mount, .kill_sb = ramfs_kill_sb, }; static struct file_system_type rootfs_fs_type = { .name = "rootfs", - .get_sb = rootfs_get_sb, + .mount = rootfs_mount, .kill_sb = kill_litter_super, }; diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c index e15ff61..3bf7a64 100644 --- a/fs/reiserfs/super.c +++ b/fs/reiserfs/super.c @@ -2213,12 +2213,11 @@ out: #endif -static int get_super_block(struct file_system_type *fs_type, +static struct dentry *get_super_block(struct file_system_type *fs_type, int flags, const char *dev_name, - void *data, struct vfsmount *mnt) + void *data) { - return get_sb_bdev(fs_type, flags, dev_name, data, reiserfs_fill_super, - mnt); + return mount_bdev(fs_type, flags, dev_name, data, reiserfs_fill_super); } static int __init init_reiserfs_fs(void) @@ -2253,7 +2252,7 @@ static void __exit exit_reiserfs_fs(void) struct file_system_type reiserfs_fs_type = { .owner = THIS_MODULE, .name = "reiserfs", - .get_sb = get_super_block, + .mount = get_super_block, .kill_sb = reiserfs_kill_sb, .fs_flags = FS_REQUIRES_DEV, }; diff --git a/fs/romfs/super.c b/fs/romfs/super.c index 2685805..6647f90 100644 --- a/fs/romfs/super.c +++ b/fs/romfs/super.c @@ -552,20 +552,19 @@ error_rsb: /* * get a superblock for mounting */ -static int romfs_get_sb(struct file_system_type *fs_type, +static struct dentry *romfs_mount(struct file_system_type *fs_type, int flags, const char *dev_name, - void *data, struct vfsmount *mnt) + void *data) { - int ret = -EINVAL; + struct dentry *ret = ERR_PTR(-EINVAL); #ifdef CONFIG_ROMFS_ON_MTD - ret = get_sb_mtd(fs_type, flags, dev_name, data, romfs_fill_super, - mnt); + ret = mount_mtd(fs_type, flags, dev_name, data, romfs_fill_super); #endif #ifdef CONFIG_ROMFS_ON_BLOCK - if (ret == -EINVAL) - ret = get_sb_bdev(fs_type, flags, dev_name, data, - romfs_fill_super, mnt); + if (ret == ERR_PTR(-EINVAL)) + ret = mount_bdev(fs_type, flags, dev_name, data, + romfs_fill_super); #endif return ret; } @@ -592,7 +591,7 @@ static void romfs_kill_sb(struct super_block *sb) static struct file_system_type romfs_fs_type = { .owner = THIS_MODULE, .name = "romfs", - .get_sb = romfs_get_sb, + .mount = romfs_mount, .kill_sb = romfs_kill_sb, .fs_flags = FS_REQUIRES_DEV, }; diff --git a/fs/squashfs/super.c b/fs/squashfs/super.c index 07a4f11..24de30b 100644 --- a/fs/squashfs/super.c +++ b/fs/squashfs/super.c @@ -370,12 +370,10 @@ static void squashfs_put_super(struct super_block *sb) } -static int squashfs_get_sb(struct file_system_type *fs_type, int flags, - const char *dev_name, void *data, - struct vfsmount *mnt) +static struct dentry *squashfs_mount(struct file_system_type *fs_type, int flags, + const char *dev_name, void *data) { - return get_sb_bdev(fs_type, flags, dev_name, data, squashfs_fill_super, - mnt); + return mount_bdev(fs_type, flags, dev_name, data, squashfs_fill_super); } @@ -451,7 +449,7 @@ static void squashfs_destroy_inode(struct inode *inode) static struct file_system_type squashfs_fs_type = { .owner = THIS_MODULE, .name = "squashfs", - .get_sb = squashfs_get_sb, + .mount = squashfs_mount, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV }; diff --git a/fs/squashfs/xattr.c b/fs/squashfs/xattr.c index 652b854..3876c36 100644 --- a/fs/squashfs/xattr.c +++ b/fs/squashfs/xattr.c @@ -158,17 +158,18 @@ static int squashfs_xattr_get(struct inode *inode, int name_index, strncmp(target, name, name_size) == 0) { /* found xattr */ if (type & SQUASHFS_XATTR_VALUE_OOL) { - __le64 xattr; + __le64 xattr_val; + u64 xattr; /* val is a reference to the real location */ err = squashfs_read_metadata(sb, &val, &start, &offset, sizeof(val)); if (err < 0) goto failed; - err = squashfs_read_metadata(sb, &xattr, &start, - &offset, sizeof(xattr)); + err = squashfs_read_metadata(sb, &xattr_val, + &start, &offset, sizeof(xattr_val)); if (err < 0) goto failed; - xattr = le64_to_cpu(xattr); + xattr = le64_to_cpu(xattr_val); start = SQUASHFS_XATTR_BLK(xattr) + msblk->xattr_table; offset = SQUASHFS_XATTR_OFFSET(xattr); diff --git a/fs/squashfs/xattr.h b/fs/squashfs/xattr.h index 49fe0d7..b634efc 100644 --- a/fs/squashfs/xattr.h +++ b/fs/squashfs/xattr.h @@ -25,7 +25,7 @@ extern __le64 *squashfs_read_xattr_id_table(struct super_block *, u64, u64 *, int *); extern int squashfs_xattr_lookup(struct super_block *, unsigned int, int *, - int *, unsigned long long *); + unsigned int *, unsigned long long *); #else static inline __le64 *squashfs_read_xattr_id_table(struct super_block *sb, u64 start, u64 *xattr_table_start, int *xattr_ids) @@ -35,7 +35,7 @@ static inline __le64 *squashfs_read_xattr_id_table(struct super_block *sb, } static inline int squashfs_xattr_lookup(struct super_block *sb, - unsigned int index, int *count, int *size, + unsigned int index, int *count, unsigned int *size, unsigned long long *xattr) { return 0; diff --git a/fs/squashfs/xattr_id.c b/fs/squashfs/xattr_id.c index cfb4110..d33be5d 100644 --- a/fs/squashfs/xattr_id.c +++ b/fs/squashfs/xattr_id.c @@ -34,6 +34,7 @@ #include "squashfs_fs_sb.h" #include "squashfs_fs_i.h" #include "squashfs.h" +#include "xattr.h" /* * Map xattr id using the xattr id look up table @@ -715,15 +715,14 @@ static int ns_set_super(struct super_block *sb, void *data) return set_anon_super(sb, NULL); } -int get_sb_ns(struct file_system_type *fs_type, int flags, void *data, - int (*fill_super)(struct super_block *, void *, int), - struct vfsmount *mnt) +struct dentry *mount_ns(struct file_system_type *fs_type, int flags, + void *data, int (*fill_super)(struct super_block *, void *, int)) { struct super_block *sb; sb = sget(fs_type, ns_test_super, ns_set_super, data); if (IS_ERR(sb)) - return PTR_ERR(sb); + return ERR_CAST(sb); if (!sb->s_root) { int err; @@ -731,17 +730,16 @@ int get_sb_ns(struct file_system_type *fs_type, int flags, void *data, err = fill_super(sb, data, flags & MS_SILENT ? 1 : 0); if (err) { deactivate_locked_super(sb); - return err; + return ERR_PTR(err); } sb->s_flags |= MS_ACTIVE; } - simple_set_mnt(mnt, sb); - return 0; + return dget(sb->s_root); } -EXPORT_SYMBOL(get_sb_ns); +EXPORT_SYMBOL(mount_ns); #ifdef CONFIG_BLOCK static int set_bdev_super(struct super_block *s, void *data) @@ -762,10 +760,9 @@ static int test_bdev_super(struct super_block *s, void *data) return (void *)s->s_bdev == data; } -int get_sb_bdev(struct file_system_type *fs_type, +struct dentry *mount_bdev(struct file_system_type *fs_type, int flags, const char *dev_name, void *data, - int (*fill_super)(struct super_block *, void *, int), - struct vfsmount *mnt) + int (*fill_super)(struct super_block *, void *, int)) { struct block_device *bdev; struct super_block *s; @@ -777,7 +774,7 @@ int get_sb_bdev(struct file_system_type *fs_type, bdev = open_bdev_exclusive(dev_name, mode, fs_type); if (IS_ERR(bdev)) - return PTR_ERR(bdev); + return ERR_CAST(bdev); /* * once the super is inserted into the list by sget, s_umount @@ -829,15 +826,30 @@ int get_sb_bdev(struct file_system_type *fs_type, bdev->bd_super = s; } - simple_set_mnt(mnt, s); - return 0; + return dget(s->s_root); error_s: error = PTR_ERR(s); error_bdev: close_bdev_exclusive(bdev, mode); error: - return error; + return ERR_PTR(error); +} +EXPORT_SYMBOL(mount_bdev); + +int get_sb_bdev(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data, + int (*fill_super)(struct super_block *, void *, int), + struct vfsmount *mnt) +{ + struct dentry *root; + + root = mount_bdev(fs_type, flags, dev_name, data, fill_super); + if (IS_ERR(root)) + return PTR_ERR(root); + mnt->mnt_root = root; + mnt->mnt_sb = root->d_sb; + return 0; } EXPORT_SYMBOL(get_sb_bdev); @@ -856,29 +868,42 @@ void kill_block_super(struct super_block *sb) EXPORT_SYMBOL(kill_block_super); #endif -int get_sb_nodev(struct file_system_type *fs_type, +struct dentry *mount_nodev(struct file_system_type *fs_type, int flags, void *data, - int (*fill_super)(struct super_block *, void *, int), - struct vfsmount *mnt) + int (*fill_super)(struct super_block *, void *, int)) { int error; struct super_block *s = sget(fs_type, NULL, set_anon_super, NULL); if (IS_ERR(s)) - return PTR_ERR(s); + return ERR_CAST(s); s->s_flags = flags; error = fill_super(s, data, flags & MS_SILENT ? 1 : 0); if (error) { deactivate_locked_super(s); - return error; + return ERR_PTR(error); } s->s_flags |= MS_ACTIVE; - simple_set_mnt(mnt, s); - return 0; + return dget(s->s_root); } +EXPORT_SYMBOL(mount_nodev); +int get_sb_nodev(struct file_system_type *fs_type, + int flags, void *data, + int (*fill_super)(struct super_block *, void *, int), + struct vfsmount *mnt) +{ + struct dentry *root; + + root = mount_nodev(fs_type, flags, data, fill_super); + if (IS_ERR(root)) + return PTR_ERR(root); + mnt->mnt_root = root; + mnt->mnt_sb = root->d_sb; + return 0; +} EXPORT_SYMBOL(get_sb_nodev); static int compare_single(struct super_block *s, void *p) @@ -886,29 +911,42 @@ static int compare_single(struct super_block *s, void *p) return 1; } -int get_sb_single(struct file_system_type *fs_type, +struct dentry *mount_single(struct file_system_type *fs_type, int flags, void *data, - int (*fill_super)(struct super_block *, void *, int), - struct vfsmount *mnt) + int (*fill_super)(struct super_block *, void *, int)) { struct super_block *s; int error; s = sget(fs_type, compare_single, set_anon_super, NULL); if (IS_ERR(s)) - return PTR_ERR(s); + return ERR_CAST(s); if (!s->s_root) { s->s_flags = flags; error = fill_super(s, data, flags & MS_SILENT ? 1 : 0); if (error) { deactivate_locked_super(s); - return error; + return ERR_PTR(error); } s->s_flags |= MS_ACTIVE; } else { do_remount_sb(s, flags, data, 0); } - simple_set_mnt(mnt, s); + return dget(s->s_root); +} +EXPORT_SYMBOL(mount_single); + +int get_sb_single(struct file_system_type *fs_type, + int flags, void *data, + int (*fill_super)(struct super_block *, void *, int), + struct vfsmount *mnt) +{ + struct dentry *root; + root = mount_single(fs_type, flags, data, fill_super); + if (IS_ERR(root)) + return PTR_ERR(root); + mnt->mnt_root = root; + mnt->mnt_sb = root->d_sb; return 0; } @@ -918,6 +956,7 @@ struct vfsmount * vfs_kern_mount(struct file_system_type *type, int flags, const char *name, void *data) { struct vfsmount *mnt; + struct dentry *root; char *secdata = NULL; int error; @@ -942,9 +981,19 @@ vfs_kern_mount(struct file_system_type *type, int flags, const char *name, void goto out_free_secdata; } - error = type->get_sb(type, flags, name, data, mnt); - if (error < 0) - goto out_free_secdata; + if (type->mount) { + root = type->mount(type, flags, name, data); + if (IS_ERR(root)) { + error = PTR_ERR(root); + goto out_free_secdata; + } + mnt->mnt_root = root; + mnt->mnt_sb = root->d_sb; + } else { + error = type->get_sb(type, flags, name, data, mnt); + if (error < 0) + goto out_free_secdata; + } BUG_ON(!mnt->mnt_sb); WARN_ON(!mnt->mnt_sb->s_bdi); mnt->mnt_sb->s_flags |= MS_BORN; diff --git a/fs/sysfs/mount.c b/fs/sysfs/mount.c index f2af225..2668957 100644 --- a/fs/sysfs/mount.c +++ b/fs/sysfs/mount.c @@ -23,7 +23,7 @@ #include "sysfs.h" -static struct vfsmount *sysfs_mount; +static struct vfsmount *sysfs_mnt; struct kmem_cache *sysfs_dir_cachep; static const struct super_operations sysfs_ops = { @@ -95,18 +95,17 @@ static int sysfs_set_super(struct super_block *sb, void *data) return error; } -static int sysfs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *sysfs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { struct sysfs_super_info *info; enum kobj_ns_type type; struct super_block *sb; int error; - error = -ENOMEM; info = kzalloc(sizeof(*info), GFP_KERNEL); if (!info) - goto out; + return ERR_PTR(-ENOMEM); for (type = KOBJ_NS_TYPE_NONE; type < KOBJ_NS_TYPES; type++) info->ns[type] = kobj_ns_current(type); @@ -114,24 +113,19 @@ static int sysfs_get_sb(struct file_system_type *fs_type, sb = sget(fs_type, sysfs_test_super, sysfs_set_super, info); if (IS_ERR(sb) || sb->s_fs_info != info) kfree(info); - if (IS_ERR(sb)) { - error = PTR_ERR(sb); - goto out; - } + if (IS_ERR(sb)) + return ERR_CAST(sb); if (!sb->s_root) { sb->s_flags = flags; error = sysfs_fill_super(sb, data, flags & MS_SILENT ? 1 : 0); if (error) { deactivate_locked_super(sb); - goto out; + return ERR_PTR(error); } sb->s_flags |= MS_ACTIVE; } - simple_set_mnt(mnt, sb); - error = 0; -out: - return error; + return dget(sb->s_root); } static void sysfs_kill_sb(struct super_block *sb) @@ -147,7 +141,7 @@ static void sysfs_kill_sb(struct super_block *sb) static struct file_system_type sysfs_fs_type = { .name = "sysfs", - .get_sb = sysfs_get_sb, + .mount = sysfs_mount, .kill_sb = sysfs_kill_sb, }; @@ -189,11 +183,11 @@ int __init sysfs_init(void) err = register_filesystem(&sysfs_fs_type); if (!err) { - sysfs_mount = kern_mount(&sysfs_fs_type); - if (IS_ERR(sysfs_mount)) { + sysfs_mnt = kern_mount(&sysfs_fs_type); + if (IS_ERR(sysfs_mnt)) { printk(KERN_ERR "sysfs: could not mount!\n"); - err = PTR_ERR(sysfs_mount); - sysfs_mount = NULL; + err = PTR_ERR(sysfs_mnt); + sysfs_mnt = NULL; unregister_filesystem(&sysfs_fs_type); goto out_err; } diff --git a/fs/sysv/super.c b/fs/sysv/super.c index a0b0cda..3d9c62b 100644 --- a/fs/sysv/super.c +++ b/fs/sysv/super.c @@ -526,23 +526,22 @@ failed: /* Every kernel module contains stuff like this. */ -static int sysv_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *sysv_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_bdev(fs_type, flags, dev_name, data, sysv_fill_super, - mnt); + return mount_bdev(fs_type, flags, dev_name, data, sysv_fill_super); } -static int v7_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *v7_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_bdev(fs_type, flags, dev_name, data, v7_fill_super, mnt); + return mount_bdev(fs_type, flags, dev_name, data, v7_fill_super); } static struct file_system_type sysv_fs_type = { .owner = THIS_MODULE, .name = "sysv", - .get_sb = sysv_get_sb, + .mount = sysv_mount, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; @@ -550,7 +549,7 @@ static struct file_system_type sysv_fs_type = { static struct file_system_type v7_fs_type = { .owner = THIS_MODULE, .name = "v7", - .get_sb = v7_get_sb, + .mount = v7_mount, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c index 9a47c9f..91fac54 100644 --- a/fs/ubifs/super.c +++ b/fs/ubifs/super.c @@ -2038,8 +2038,8 @@ static int sb_test(struct super_block *sb, void *data) return c->vi.cdev == *dev; } -static int ubifs_get_sb(struct file_system_type *fs_type, int flags, - const char *name, void *data, struct vfsmount *mnt) +static struct dentry *ubifs_mount(struct file_system_type *fs_type, int flags, + const char *name, void *data) { struct ubi_volume_desc *ubi; struct ubi_volume_info vi; @@ -2057,7 +2057,7 @@ static int ubifs_get_sb(struct file_system_type *fs_type, int flags, if (IS_ERR(ubi)) { dbg_err("cannot open \"%s\", error %d", name, (int)PTR_ERR(ubi)); - return PTR_ERR(ubi); + return ERR_CAST(ubi); } ubi_get_volume_info(ubi, &vi); @@ -2095,20 +2095,19 @@ static int ubifs_get_sb(struct file_system_type *fs_type, int flags, /* 'fill_super()' opens ubi again so we must close it here */ ubi_close_volume(ubi); - simple_set_mnt(mnt, sb); - return 0; + return dget(sb->s_root); out_deact: deactivate_locked_super(sb); out_close: ubi_close_volume(ubi); - return err; + return ERR_PTR(err); } static struct file_system_type ubifs_fs_type = { .name = "ubifs", .owner = THIS_MODULE, - .get_sb = ubifs_get_sb, + .mount = ubifs_mount, .kill_sb = kill_anon_super, }; diff --git a/fs/udf/super.c b/fs/udf/super.c index 76f3d6d..4a5c7c6 100644 --- a/fs/udf/super.c +++ b/fs/udf/super.c @@ -107,17 +107,16 @@ struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct udf_sb_info *sbi) } /* UDF filesystem type */ -static int udf_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, - struct vfsmount *mnt) +static struct dentry *udf_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_bdev(fs_type, flags, dev_name, data, udf_fill_super, mnt); + return mount_bdev(fs_type, flags, dev_name, data, udf_fill_super); } static struct file_system_type udf_fstype = { .owner = THIS_MODULE, .name = "udf", - .get_sb = udf_get_sb, + .mount = udf_mount, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; diff --git a/fs/ufs/super.c b/fs/ufs/super.c index 6b9be90..2c47dae 100644 --- a/fs/ufs/super.c +++ b/fs/ufs/super.c @@ -1454,16 +1454,16 @@ static const struct super_operations ufs_super_ops = { .show_options = ufs_show_options, }; -static int ufs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *ufs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_bdev(fs_type, flags, dev_name, data, ufs_fill_super, mnt); + return mount_bdev(fs_type, flags, dev_name, data, ufs_fill_super); } static struct file_system_type ufs_fs_type = { .owner = THIS_MODULE, .name = "ufs", - .get_sb = ufs_get_sb, + .mount = ufs_mount, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c index cf80878..9f3a78f 100644 --- a/fs/xfs/linux-2.6/xfs_super.c +++ b/fs/xfs/linux-2.6/xfs_super.c @@ -1609,16 +1609,14 @@ xfs_fs_fill_super( goto out_free_sb; } -STATIC int -xfs_fs_get_sb( +STATIC struct dentry * +xfs_fs_mount( struct file_system_type *fs_type, int flags, const char *dev_name, - void *data, - struct vfsmount *mnt) + void *data) { - return get_sb_bdev(fs_type, flags, dev_name, data, xfs_fs_fill_super, - mnt); + return mount_bdev(fs_type, flags, dev_name, data, xfs_fs_fill_super); } static const struct super_operations xfs_super_operations = { @@ -1639,7 +1637,7 @@ static const struct super_operations xfs_super_operations = { static struct file_system_type xfs_fs_type = { .owner = THIS_MODULE, .name = "xfs", - .get_sb = xfs_fs_get_sb, + .mount = xfs_fs_mount, .kill_sb = kill_block_super, .fs_flags = FS_REQUIRES_DEV, }; diff --git a/include/linux/fs.h b/include/linux/fs.h index 1c73b50..4d07902 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1772,6 +1772,8 @@ struct file_system_type { int fs_flags; int (*get_sb) (struct file_system_type *, int, const char *, void *, struct vfsmount *); + struct dentry *(*mount) (struct file_system_type *, int, + const char *, void *); void (*kill_sb) (struct super_block *); struct module *owner; struct file_system_type * next; @@ -1787,17 +1789,25 @@ struct file_system_type { struct lock_class_key i_alloc_sem_key; }; -extern int get_sb_ns(struct file_system_type *fs_type, int flags, void *data, - int (*fill_super)(struct super_block *, void *, int), - struct vfsmount *mnt); +extern struct dentry *mount_ns(struct file_system_type *fs_type, int flags, + void *data, int (*fill_super)(struct super_block *, void *, int)); +extern struct dentry *mount_bdev(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data, + int (*fill_super)(struct super_block *, void *, int)); extern int get_sb_bdev(struct file_system_type *fs_type, int flags, const char *dev_name, void *data, int (*fill_super)(struct super_block *, void *, int), struct vfsmount *mnt); +extern struct dentry *mount_single(struct file_system_type *fs_type, + int flags, void *data, + int (*fill_super)(struct super_block *, void *, int)); extern int get_sb_single(struct file_system_type *fs_type, int flags, void *data, int (*fill_super)(struct super_block *, void *, int), struct vfsmount *mnt); +extern struct dentry *mount_nodev(struct file_system_type *fs_type, + int flags, void *data, + int (*fill_super)(struct super_block *, void *, int)); extern int get_sb_nodev(struct file_system_type *fs_type, int flags, void *data, int (*fill_super)(struct super_block *, void *, int), @@ -1813,9 +1823,8 @@ struct super_block *sget(struct file_system_type *type, int (*test)(struct super_block *,void *), int (*set)(struct super_block *,void *), void *data); -extern int get_sb_pseudo(struct file_system_type *, char *, - const struct super_operations *ops, unsigned long, - struct vfsmount *mnt); +extern struct dentry *mount_pseudo(struct file_system_type *, char *, + const struct super_operations *ops, unsigned long); extern void simple_set_mnt(struct vfsmount *mnt, struct super_block *sb); static inline void sb_mark_dirty(struct super_block *sb) diff --git a/include/linux/mtd/super.h b/include/linux/mtd/super.h index 4016dd6..f456230 100644 --- a/include/linux/mtd/super.h +++ b/include/linux/mtd/super.h @@ -18,10 +18,9 @@ #include <linux/fs.h> #include <linux/mount.h> -extern int get_sb_mtd(struct file_system_type *fs_type, int flags, +extern struct dentry *mount_mtd(struct file_system_type *fs_type, int flags, const char *dev_name, void *data, - int (*fill_super)(struct super_block *, void *, int), - struct vfsmount *mnt); + int (*fill_super)(struct super_block *, void *, int)); extern void kill_mtd_super(struct super_block *sb); diff --git a/include/linux/ramfs.h b/include/linux/ramfs.h index e7320b5..3a8f0c9 100644 --- a/include/linux/ramfs.h +++ b/include/linux/ramfs.h @@ -3,8 +3,8 @@ struct inode *ramfs_get_inode(struct super_block *sb, const struct inode *dir, int mode, dev_t dev); -extern int ramfs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt); +extern struct dentry *ramfs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data); #ifndef CONFIG_MMU extern int ramfs_nommu_expand_for_mapping(struct inode *inode, size_t newsize); diff --git a/include/linux/sched.h b/include/linux/sched.h index be7adb7..f53cdf2 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1080,7 +1080,7 @@ struct sched_class { struct task_struct *task); #ifdef CONFIG_FAIR_GROUP_SCHED - void (*moved_group) (struct task_struct *p, int on_rq); + void (*task_move_group) (struct task_struct *p, int on_rq); #endif }; diff --git a/ipc/mqueue.c b/ipc/mqueue.c index 3a61ffe..035f439 100644 --- a/ipc/mqueue.c +++ b/ipc/mqueue.c @@ -211,13 +211,13 @@ out: return error; } -static int mqueue_get_sb(struct file_system_type *fs_type, +static struct dentry *mqueue_mount(struct file_system_type *fs_type, int flags, const char *dev_name, - void *data, struct vfsmount *mnt) + void *data) { if (!(flags & MS_KERNMOUNT)) data = current->nsproxy->ipc_ns; - return get_sb_ns(fs_type, flags, data, mqueue_fill_super, mnt); + return mount_ns(fs_type, flags, data, mqueue_fill_super); } static void init_once(void *foo) @@ -1232,7 +1232,7 @@ static const struct super_operations mqueue_super_ops = { static struct file_system_type mqueue_fs_type = { .name = "mqueue", - .get_sb = mqueue_get_sb, + .mount = mqueue_mount, .kill_sb = kill_litter_super, }; diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 5cf3669..66a416b 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -1460,9 +1460,9 @@ static int cgroup_get_rootdir(struct super_block *sb) return 0; } -static int cgroup_get_sb(struct file_system_type *fs_type, +static struct dentry *cgroup_mount(struct file_system_type *fs_type, int flags, const char *unused_dev_name, - void *data, struct vfsmount *mnt) + void *data) { struct cgroup_sb_opts opts; struct cgroupfs_root *root; @@ -1596,10 +1596,9 @@ static int cgroup_get_sb(struct file_system_type *fs_type, drop_parsed_module_refcounts(opts.subsys_bits); } - simple_set_mnt(mnt, sb); kfree(opts.release_agent); kfree(opts.name); - return 0; + return dget(sb->s_root); drop_new_super: deactivate_locked_super(sb); @@ -1608,7 +1607,7 @@ static int cgroup_get_sb(struct file_system_type *fs_type, out_err: kfree(opts.release_agent); kfree(opts.name); - return ret; + return ERR_PTR(ret); } static void cgroup_kill_sb(struct super_block *sb) { @@ -1658,7 +1657,7 @@ static void cgroup_kill_sb(struct super_block *sb) { static struct file_system_type cgroup_fs_type = { .name = "cgroup", - .get_sb = cgroup_get_sb, + .mount = cgroup_mount, .kill_sb = cgroup_kill_sb, }; diff --git a/kernel/cpuset.c b/kernel/cpuset.c index 51b143e..4349935 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -231,18 +231,17 @@ static DEFINE_SPINLOCK(cpuset_buffer_lock); * users. If someone tries to mount the "cpuset" filesystem, we * silently switch it to mount "cgroup" instead */ -static int cpuset_get_sb(struct file_system_type *fs_type, - int flags, const char *unused_dev_name, - void *data, struct vfsmount *mnt) +static struct dentry *cpuset_mount(struct file_system_type *fs_type, + int flags, const char *unused_dev_name, void *data) { struct file_system_type *cgroup_fs = get_fs_type("cgroup"); - int ret = -ENODEV; + struct dentry *ret = ERR_PTR(-ENODEV); if (cgroup_fs) { char mountopts[] = "cpuset,noprefix," "release_agent=/sbin/cpuset_release_agent"; - ret = cgroup_fs->get_sb(cgroup_fs, flags, - unused_dev_name, mountopts, mnt); + ret = cgroup_fs->mount(cgroup_fs, flags, + unused_dev_name, mountopts); put_filesystem(cgroup_fs); } return ret; @@ -250,7 +249,7 @@ static int cpuset_get_sb(struct file_system_type *fs_type, static struct file_system_type cpuset_fs_type = { .name = "cpuset", - .get_sb = cpuset_get_sb, + .mount = cpuset_mount, }; /* diff --git a/kernel/sched.c b/kernel/sched.c index d42992b..aa14a56 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -8510,12 +8510,12 @@ void sched_move_task(struct task_struct *tsk) if (unlikely(running)) tsk->sched_class->put_prev_task(rq, tsk); - set_task_rq(tsk, task_cpu(tsk)); - #ifdef CONFIG_FAIR_GROUP_SCHED - if (tsk->sched_class->moved_group) - tsk->sched_class->moved_group(tsk, on_rq); + if (tsk->sched_class->task_move_group) + tsk->sched_class->task_move_group(tsk, on_rq); + else #endif + set_task_rq(tsk, task_cpu(tsk)); if (unlikely(running)) tsk->sched_class->set_curr_task(rq); diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index 933f3d1..f4f6a83 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -3869,13 +3869,26 @@ static void set_curr_task_fair(struct rq *rq) } #ifdef CONFIG_FAIR_GROUP_SCHED -static void moved_group_fair(struct task_struct *p, int on_rq) +static void task_move_group_fair(struct task_struct *p, int on_rq) { - struct cfs_rq *cfs_rq = task_cfs_rq(p); - - update_curr(cfs_rq); + /* + * If the task was not on the rq at the time of this cgroup movement + * it must have been asleep, sleeping tasks keep their ->vruntime + * absolute on their old rq until wakeup (needed for the fair sleeper + * bonus in place_entity()). + * + * If it was on the rq, we've just 'preempted' it, which does convert + * ->vruntime to a relative base. + * + * Make sure both cases convert their relative position when migrating + * to another cgroup's rq. This does somewhat interfere with the + * fair sleeper stuff for the first placement, but who cares. + */ + if (!on_rq) + p->se.vruntime -= cfs_rq_of(&p->se)->min_vruntime; + set_task_rq(p, task_cpu(p)); if (!on_rq) - place_entity(cfs_rq, &p->se, 1); + p->se.vruntime += cfs_rq_of(&p->se)->min_vruntime; } #endif @@ -3927,7 +3940,7 @@ static const struct sched_class fair_sched_class = { .get_rr_interval = get_rr_interval_fair, #ifdef CONFIG_FAIR_GROUP_SCHED - .moved_group = moved_group_fair, + .task_move_group = task_move_group_fair, #endif }; diff --git a/kernel/sched_stats.h b/kernel/sched_stats.h index 25c2f96..48ddf43 100644 --- a/kernel/sched_stats.h +++ b/kernel/sched_stats.h @@ -157,15 +157,7 @@ static inline void sched_info_reset_dequeued(struct task_struct *t) } /* - * Called when a process is dequeued from the active array and given - * the cpu. We should note that with the exception of interactive - * tasks, the expired queue will become the active queue after the active - * queue is empty, without explicitly dequeuing and requeuing tasks in the - * expired queue. (Interactive tasks may be requeued directly to the - * active queue, thus delaying tasks in the expired queue from running; - * see scheduler_tick()). - * - * Though we are interested in knowing how long it was from the *first* time a + * We are interested in knowing how long it was from the *first* time a * task was queued to the time that it finally hit a cpu, we call this routine * from dequeue_task() to account for possible rq->clock skew across cpus. The * delta taken on each cpu would annul the skew. @@ -203,16 +195,6 @@ static void sched_info_arrive(struct task_struct *t) } /* - * Called when a process is queued into either the active or expired - * array. The time is noted and later used to determine how long we - * had to wait for us to reach the cpu. Since the expired queue will - * become the active queue after active queue is empty, without dequeuing - * and requeuing any tasks, we are interested in queuing to either. It - * is unusual but not impossible for tasks to be dequeued and immediately - * requeued in the same or another array: this can happen in sched_yield(), - * set_user_nice(), and even load_balance() as it moves tasks from runqueue - * to runqueue. - * * This function is only called from enqueue_task(), but also only updates * the timestamp if it is already not set. It's assumed that * sched_info_dequeued() will clear that stamp when appropriate. @@ -2538,16 +2538,16 @@ static const struct vm_operations_struct shmem_vm_ops = { }; -static int shmem_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry *shmem_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_nodev(fs_type, flags, data, shmem_fill_super, mnt); + return mount_nodev(fs_type, flags, data, shmem_fill_super); } static struct file_system_type tmpfs_fs_type = { .owner = THIS_MODULE, .name = "tmpfs", - .get_sb = shmem_get_sb, + .mount = shmem_mount, .kill_sb = kill_litter_super, }; @@ -2643,7 +2643,7 @@ out: static struct file_system_type tmpfs_fs_type = { .name = "tmpfs", - .get_sb = ramfs_get_sb, + .mount = ramfs_mount, .kill_sb = kill_litter_super, }; diff --git a/net/socket.c b/net/socket.c index ee3cd28..5247ae1 100644 --- a/net/socket.c +++ b/net/socket.c @@ -305,19 +305,17 @@ static const struct super_operations sockfs_ops = { .statfs = simple_statfs, }; -static int sockfs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, - struct vfsmount *mnt) +static struct dentry *sockfs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_pseudo(fs_type, "socket:", &sockfs_ops, SOCKFS_MAGIC, - mnt); + return mount_pseudo(fs_type, "socket:", &sockfs_ops, SOCKFS_MAGIC); } static struct vfsmount *sock_mnt __read_mostly; static struct file_system_type sock_fs_type = { .name = "sockfs", - .get_sb = sockfs_get_sb, + .mount = sockfs_mount, .kill_sb = kill_anon_super, }; diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c index 7df92d2..10a17a3 100644 --- a/net/sunrpc/rpc_pipe.c +++ b/net/sunrpc/rpc_pipe.c @@ -28,7 +28,7 @@ #include <linux/sunrpc/rpc_pipe_fs.h> #include <linux/sunrpc/cache.h> -static struct vfsmount *rpc_mount __read_mostly; +static struct vfsmount *rpc_mnt __read_mostly; static int rpc_mount_count; static struct file_system_type rpc_pipe_fs_type; @@ -417,16 +417,16 @@ struct vfsmount *rpc_get_mount(void) { int err; - err = simple_pin_fs(&rpc_pipe_fs_type, &rpc_mount, &rpc_mount_count); + err = simple_pin_fs(&rpc_pipe_fs_type, &rpc_mnt, &rpc_mount_count); if (err != 0) return ERR_PTR(err); - return rpc_mount; + return rpc_mnt; } EXPORT_SYMBOL_GPL(rpc_get_mount); void rpc_put_mount(void) { - simple_release_fs(&rpc_mount, &rpc_mount_count); + simple_release_fs(&rpc_mnt, &rpc_mount_count); } EXPORT_SYMBOL_GPL(rpc_put_mount); @@ -1018,17 +1018,17 @@ rpc_fill_super(struct super_block *sb, void *data, int silent) return 0; } -static int -rpc_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) +static struct dentry * +rpc_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_single(fs_type, flags, data, rpc_fill_super, mnt); + return mount_single(fs_type, flags, data, rpc_fill_super); } static struct file_system_type rpc_pipe_fs_type = { .owner = THIS_MODULE, .name = "rpc_pipefs", - .get_sb = rpc_get_sb, + .mount = rpc_mount, .kill_sb = kill_litter_super, }; diff --git a/security/inode.c b/security/inode.c index cb8f47c..c4df2fb 100644 --- a/security/inode.c +++ b/security/inode.c @@ -131,17 +131,17 @@ static int fill_super(struct super_block *sb, void *data, int silent) return simple_fill_super(sb, SECURITYFS_MAGIC, files); } -static int get_sb(struct file_system_type *fs_type, +static struct dentry *get_sb(struct file_system_type *fs_type, int flags, const char *dev_name, - void *data, struct vfsmount *mnt) + void *data) { - return get_sb_single(fs_type, flags, data, fill_super, mnt); + return mount_single(fs_type, flags, data, fill_super); } static struct file_system_type fs_type = { .owner = THIS_MODULE, .name = "securityfs", - .get_sb = get_sb, + .mount = get_sb, .kill_sb = kill_litter_super, }; diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c index 55a755c..073fd5b 100644 --- a/security/selinux/selinuxfs.c +++ b/security/selinux/selinuxfs.c @@ -1909,16 +1909,15 @@ err: goto out; } -static int sel_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, - struct vfsmount *mnt) +static struct dentry *sel_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_single(fs_type, flags, data, sel_fill_super, mnt); + return mount_single(fs_type, flags, data, sel_fill_super); } static struct file_system_type sel_fs_type = { .name = "selinuxfs", - .get_sb = sel_get_sb, + .mount = sel_mount, .kill_sb = kill_litter_super, }; diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c index 7512502..dc1fd62 100644 --- a/security/smack/smackfs.c +++ b/security/smack/smackfs.c @@ -1310,27 +1310,25 @@ static int smk_fill_super(struct super_block *sb, void *data, int silent) } /** - * smk_get_sb - get the smackfs superblock + * smk_mount - get the smackfs superblock * @fs_type: passed along without comment * @flags: passed along without comment * @dev_name: passed along without comment * @data: passed along without comment - * @mnt: passed along without comment * * Just passes everything along. * * Returns what the lower level code does. */ -static int smk_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, - struct vfsmount *mnt) +static struct dentry *smk_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) { - return get_sb_single(fs_type, flags, data, smk_fill_super, mnt); + return mount_single(fs_type, flags, data, smk_fill_super); } static struct file_system_type smk_fs_type = { .name = "smackfs", - .get_sb = smk_get_sb, + .mount = smk_mount, .kill_sb = kill_litter_super, }; |