diff options
| -rw-r--r-- | block/blktrace.c | 81 | ||||
| -rw-r--r-- | drivers/block/loop.c | 2 | ||||
| -rw-r--r-- | drivers/ide/ide-acpi.c | 2 | ||||
| -rw-r--r-- | drivers/mtd/chips/cfi_cmdset_0001.c | 7 | ||||
| -rw-r--r-- | drivers/video/ps3fb.c | 24 | ||||
| -rw-r--r-- | include/linux/scatterlist.h | 4 |
6 files changed, 27 insertions, 93 deletions
diff --git a/block/blktrace.c b/block/blktrace.c index 498a0a5..9b4da4a 100644 --- a/block/blktrace.c +++ b/block/blktrace.c @@ -25,7 +25,6 @@ #include <linux/time.h> #include <asm/uaccess.h> -static DEFINE_PER_CPU(unsigned long long, blk_trace_cpu_offset) = { 0, }; static unsigned int blktrace_seq __read_mostly = 1; /* @@ -41,7 +40,7 @@ static void trace_note(struct blk_trace *bt, pid_t pid, int action, const int cpu = smp_processor_id(); t->magic = BLK_IO_TRACE_MAGIC | BLK_IO_TRACE_VERSION; - t->time = cpu_clock(cpu) - per_cpu(blk_trace_cpu_offset, cpu); + t->time = ktime_to_ns(ktime_get()); t->device = bt->dev; t->action = action; t->pid = pid; @@ -159,7 +158,7 @@ void __blk_add_trace(struct blk_trace *bt, sector_t sector, int bytes, t->magic = BLK_IO_TRACE_MAGIC | BLK_IO_TRACE_VERSION; t->sequence = ++(*sequence); - t->time = cpu_clock(cpu) - per_cpu(blk_trace_cpu_offset, cpu); + t->time = ktime_to_ns(ktime_get()); t->sector = sector; t->bytes = bytes; t->action = what; @@ -179,7 +178,7 @@ void __blk_add_trace(struct blk_trace *bt, sector_t sector, int bytes, EXPORT_SYMBOL_GPL(__blk_add_trace); static struct dentry *blk_tree_root; -static struct mutex blk_tree_mutex; +static DEFINE_MUTEX(blk_tree_mutex); static unsigned int root_users; static inline void blk_remove_root(void) @@ -505,77 +504,3 @@ void blk_trace_shutdown(struct request_queue *q) blk_trace_remove(q); } } - -/* - * Average offset over two calls to cpu_clock() with a gettimeofday() - * in the middle - */ -static void blk_check_time(unsigned long long *t, int this_cpu) -{ - unsigned long long a, b; - struct timeval tv; - - a = cpu_clock(this_cpu); - do_gettimeofday(&tv); - b = cpu_clock(this_cpu); - - *t = tv.tv_sec * 1000000000 + tv.tv_usec * 1000; - *t -= (a + b) / 2; -} - -/* - * calibrate our inter-CPU timings - */ -static void blk_trace_check_cpu_time(void *data) -{ - unsigned long long *t; - int this_cpu = get_cpu(); - - t = &per_cpu(blk_trace_cpu_offset, this_cpu); - - /* - * Just call it twice, hopefully the second call will be cache hot - * and a little more precise - */ - blk_check_time(t, this_cpu); - blk_check_time(t, this_cpu); - - put_cpu(); -} - -static void blk_trace_set_ht_offsets(void) -{ -#if defined(CONFIG_SCHED_SMT) - int cpu, i; - - /* - * now make sure HT siblings have the same time offset - */ - preempt_disable(); - for_each_online_cpu(cpu) { - unsigned long long *cpu_off, *sibling_off; - - for_each_cpu_mask(i, per_cpu(cpu_sibling_map, cpu)) { - if (i == cpu) - continue; - - cpu_off = &per_cpu(blk_trace_cpu_offset, cpu); - sibling_off = &per_cpu(blk_trace_cpu_offset, i); - *sibling_off = *cpu_off; - } - } - preempt_enable(); -#endif -} - -static __init int blk_trace_init(void) -{ - mutex_init(&blk_tree_mutex); - on_each_cpu(blk_trace_check_cpu_time, NULL, 1, 1); - blk_trace_set_ht_offsets(); - - return 0; -} - -module_init(blk_trace_init); - diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 56e2304..b8af22e 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -610,7 +610,7 @@ static int loop_thread(void *data) static int loop_switch(struct loop_device *lo, struct file *file) { struct switch_request w; - struct bio *bio = bio_alloc(GFP_KERNEL, 1); + struct bio *bio = bio_alloc(GFP_KERNEL, 0); if (!bio) return -ENOMEM; init_completion(&w.wait); diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c index fe6768a..899d565 100644 --- a/drivers/ide/ide-acpi.c +++ b/drivers/ide/ide-acpi.c @@ -85,6 +85,8 @@ static const struct dmi_system_id ide_acpi_dmi_table[] = { DMI_MATCH(DMI_BIOS_VERSION, "KAM1.60") }, }, + + { } /* terminate list */ }; static int ide_acpi_blacklist(void) diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c index a9eb1c5..1707f98 100644 --- a/drivers/mtd/chips/cfi_cmdset_0001.c +++ b/drivers/mtd/chips/cfi_cmdset_0001.c @@ -1504,9 +1504,12 @@ static int __xipram do_write_buffer(struct map_info *map, struct flchip *chip, int ret, wbufsize, word_gap, words; const struct kvec *vec; unsigned long vec_seek; + unsigned long initial_adr; + int initial_len = len; wbufsize = cfi_interleave(cfi) << cfi->cfiq->MaxBufWriteSize; adr += chip->start; + initial_adr = adr; cmd_adr = adr & ~(wbufsize-1); /* Let's determine this according to the interleave only once */ @@ -1519,7 +1522,7 @@ static int __xipram do_write_buffer(struct map_info *map, struct flchip *chip, return ret; } - XIP_INVAL_CACHED_RANGE(map, adr, len); + XIP_INVAL_CACHED_RANGE(map, initial_adr, initial_len); ENABLE_VPP(map); xip_disable(map, chip, cmd_adr); @@ -1610,7 +1613,7 @@ static int __xipram do_write_buffer(struct map_info *map, struct flchip *chip, chip->state = FL_WRITING; ret = INVAL_CACHE_AND_WAIT(map, chip, cmd_adr, - adr, len, + initial_adr, initial_len, chip->buffer_write_time); if (ret) { map_write(map, CMD(0x70), cmd_adr); diff --git a/drivers/video/ps3fb.c b/drivers/video/ps3fb.c index b312890..044a423 100644 --- a/drivers/video/ps3fb.c +++ b/drivers/video/ps3fb.c @@ -443,8 +443,6 @@ static int ps3fb_sync(struct fb_info *info, u32 frame) u32 ddr_line_length, xdr_line_length; u64 ddr_base, xdr_base; - acquire_console_sem(); - if (frame > par->num_frames - 1) { dev_dbg(info->device, "%s: invalid frame number (%u)\n", __func__, frame); @@ -464,7 +462,6 @@ static int ps3fb_sync(struct fb_info *info, u32 frame) xdr_line_length); out: - release_console_sem(); return error; } @@ -479,7 +476,10 @@ static int ps3fb_release(struct fb_info *info, int user) if (atomic_dec_and_test(&ps3fb.f_count)) { if (atomic_read(&ps3fb.ext_flip)) { atomic_set(&ps3fb.ext_flip, 0); - ps3fb_sync(info, 0); /* single buffer */ + if (!try_acquire_console_sem()) { + ps3fb_sync(info, 0); /* single buffer */ + release_console_sem(); + } } } return 0; @@ -865,7 +865,9 @@ static int ps3fb_ioctl(struct fb_info *info, unsigned int cmd, break; dev_dbg(info->device, "PS3FB_IOCTL_FSEL:%d\n", val); + acquire_console_sem(); retval = ps3fb_sync(info, val); + release_console_sem(); break; default: @@ -885,7 +887,9 @@ static int ps3fbd(void *arg) set_current_state(TASK_INTERRUPTIBLE); if (ps3fb.is_kicked) { ps3fb.is_kicked = 0; + acquire_console_sem(); ps3fb_sync(info, 0); /* single buffer */ + release_console_sem(); } schedule(); } @@ -1234,12 +1238,6 @@ static int ps3fb_shutdown(struct ps3_system_bus_device *dev) ps3fb_flip_ctl(0, &ps3fb); /* flip off */ ps3fb.dinfo->irq.mask = 0; - if (info) { - unregister_framebuffer(info); - fb_dealloc_cmap(&info->cmap); - framebuffer_release(info); - } - ps3av_register_flip_ctl(NULL, NULL); if (ps3fb.task) { struct task_struct *task = ps3fb.task; @@ -1250,6 +1248,12 @@ static int ps3fb_shutdown(struct ps3_system_bus_device *dev) free_irq(ps3fb.irq_no, &dev->core); ps3_irq_plug_destroy(ps3fb.irq_no); } + if (info) { + unregister_framebuffer(info); + fb_dealloc_cmap(&info->cmap); + framebuffer_release(info); + info = dev->core.driver_data = NULL; + } iounmap((u8 __iomem *)ps3fb.dinfo); status = lv1_gpu_context_free(ps3fb.context_handle); diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h index 416e000..e3ff21d 100644 --- a/include/linux/scatterlist.h +++ b/include/linux/scatterlist.h @@ -191,8 +191,8 @@ static inline void sg_chain(struct scatterlist *prv, unsigned int prv_nents, /* * offset and length are unused for chain entry. Clear them. */ - prv->offset = 0; - prv->length = 0; + prv[prv_nents - 1].offset = 0; + prv[prv_nents - 1].length = 0; /* * Set lowest bit to indicate a link pointer, and make sure to clear |