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* remove mca_is_adapter_used()Adrian Bunk2008-04-291-1/+0
| | | | | | | | | Remove the no longer used mca_is_adapter_used(). Signed-off-by: Adrian Bunk <bunk@kernel.org> Cc: James Bottomley <James.Bottomley@steeleye.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* remove generic_commit_write()Adrian Bunk2008-04-291-1/+0
| | | | | | | | | Remove the obsolete and no longer used generic_commit_write(). Signed-off-by: Adrian Bunk <bunk@kernel.org> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* fs/aio.c: make 3 functions staticAdrian Bunk2008-04-291-19/+0
| | | | | | | | | | | | | | | Make the following needlessly global functions static: - __put_ioctx() - lookup_ioctx() - io_submit_one() Signed-off-by: Adrian Bunk <bunk@kernel.org> Cc: Zach Brown <zach.brown@oracle.com> Cc: Benjamin LaHaise <bcrl@kvack.org> Cc: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* fs/drop_caches.c: make 2 functions staticAdrian Bunk2008-04-291-2/+0
| | | | | | | | | | | Make the following needlessly global functions static: - drop_pagecache() - drop_slab() Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* fs/fs-writeback.c: make 2 functions staticAdrian Bunk2008-04-291-2/+0
| | | | | | | | | | | Make the following needlessly global functions static: - writeback_acquire() - writeback_release() Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* make vfs_ioctl() staticAdrian Bunk2008-04-291-1/+0
| | | | | | | | | Make the needlessly global vfs_ioctl() static. Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* make __put_super() staticAdrian Bunk2008-04-291-1/+0
| | | | | | | | Make the needlessly global __put_super() static. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* cpu: fix section mismatch warnings in hotcpu_registerSam Ravnborg2008-04-291-1/+1
| | | | | | | | | | | | | | | | | | | | Fix following warnings: WARNING: vmlinux.o(.data+0x5020): Section mismatch in reference from the variable cpu_vsyscall_notifier_nb.12876 to the function .cpuinit.text:cpu_vsyscall_notifier() WARNING: vmlinux.o(.data+0x9ce0): Section mismatch in reference from the variable profile_cpu_callback_nb.17654 to the function .devinit.text:profile_cpu_callback() WARNING: vmlinux.o(.data+0xd380): Section mismatch in reference from the variable workqueue_cpu_callback_nb.15004 to the function .devinit.text:workqueue_cpu_callback() WARNING: vmlinux.o(.data+0x11d00): Section mismatch in reference from the variable relay_hotcpu_callback_nb.19626 to the function .cpuinit.text:relay_hotcpu_callback() WARNING: vmlinux.o(.data+0x12970): Section mismatch in reference from the variable cpu_callback_nb.24694 to the function .devinit.text:cpu_callback() WARNING: vmlinux.o(.data+0x3fee0): Section mismatch in reference from the variable percpu_counter_hotcpu_callback_nb.10903 to the function .cpuinit.text:percpu_counter_hotcpu_callback() WARNING: vmlinux.o(.data+0x74ce0): Section mismatch in reference from the variable topology_cpu_callback_nb.12506 to the function .cpuinit.text:topology_cpu_callback() Functions used as argument are by definition only used in HOTPLUG_CPU situations so thay are annotated __cpuinit. Annotate the static variable used by hotcpu_register with __cpuinitdata to match this definition. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Gautham R Shenoy <ego@in.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* add RUSAGE_THREADSripathi Kodi2008-04-291-0/+1
| | | | | | | | | | | | | | | Add the RUSAGE_THREAD option for the getrusage system call. This is essentially Roland's patch from http://lkml.org/lkml/2008/1/18/589, but the line about RUSAGE_LWP line has been removed, as suggested by Ulrich and Christoph. Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Sripathi Kodi <sripathik@in.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Michael Kerrisk <mtk.manpages@googlemail.com> Cc: Ulrich Drepper <drepper@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Taint kernel after WARN_ON(condition)Nur Hussein2008-04-291-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The kernel is sent to tainted within the warn_on_slowpath() function, and whenever a warning occurs the new taint flag 'W' is set. This is useful to know if a warning occurred before a BUG by preserving the warning as a flag in the taint state. This does not work on architectures where WARN_ON has its own definition. These archs are: 1. s390 2. superh 3. avr32 4. parisc The maintainers of these architectures have been added in the Cc: list in this email to alert them to the situation. The documentation in oops-tracing.txt has been updated to include the new flag. Signed-off-by: Nur Hussein <nurhussein@gmail.com> Cc: Arjan van de Ven <arjan@infradead.org> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* fs/coda: remove static inline forward declarationsIlpo Järvinen2008-04-291-3/+0
| | | | | | | | | | | They're defined later on in the same file with bodies and nothing in between needs them. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi> Acked-by: Jan Harkes <jaharkes@cs.cmu.edu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Avoid divides in BITS_TO_LONGSEric Dumazet2008-04-291-1/+1
| | | | | | | | | | | | | | | | | BITS_PER_LONG is a signed value (32 or 64) DIV_ROUND_UP(nr, BITS_PER_LONG) performs signed arithmetic if "nr" is signed too. Converting BITS_TO_LONGS(nr) to DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long)) makes sure compiler can perform a right shift, even if "nr" is a signed value, instead of an expensive integer divide. Applying this patch saves 141 bytes on x86 when CONFIG_CC_OPTIMIZE_FOR_SIZE=y and speedup bitmap operations. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* mm: fix misleading __GFP_REPEAT related commentsNishanth Aravamudan2008-04-291-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | The definition and use of __GFP_REPEAT, __GFP_NOFAIL and __GFP_NORETRY in the core VM have somewhat differing comments as to their actual semantics. Annoyingly, the flags definition has inline and header comments, which might be interpreted as not being equivalent. Just add references to the header comments in the inline ones so they don't go out of sync in the future. In their use in __alloc_pages() clarify that the current implementation treats low-order allocations and __GFP_REPEAT allocations as distinct cases. To clarify, the flags' semantics are: __GFP_NORETRY means try no harder than one run through __alloc_pages __GFP_REPEAT means __GFP_NOFAIL __GFP_NOFAIL means repeat forever order <= PAGE_ALLOC_COSTLY_ORDER means __GFP_NOFAIL Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com> Acked-by: Mel Gorman <mel@csn.ul.ie> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6Linus Torvalds2008-04-281-39/+14
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (35 commits) siimage: coding style cleanup (take 2) ide-cd: clean up cdrom_analyze_sense_data() ide-cd: fix test unsigned var < 0 ide: add TSSTcorp CDDVDW SH-S202H to ivb_list[] piix: add Asus Eee 701 controller to short cable list ARM: always select HAVE_IDE remove the broken ETRAX_IDE driver ide: remove ->dma_prdtable field from ide_hwif_t ide: remove ->dma_vendor{1,3} fields from ide_hwif_t scc_pata: add ->dma_host_set and ->dma_start methods ide: skip "VLB sync" if host uses MMIO ide: add ide_pad_transfer() helper ide: remove ->INW and ->OUTW methods ide: use IDE I/O helpers directly in ide_tf_{load,read}() ns87415: add ->tf_read method scc_pata: add ->tf_{load,read} methods ide-h8300: add ->tf_{load,read} methods ide-cris: add ->tf_{load,read} methods ide: add ->tf_load and ->tf_read methods ide: move ide_tf_{load,read} to ide-iops.c ...
| * ide: remove ->dma_prdtable field from ide_hwif_tBartlomiej Zolnierkiewicz2008-04-281-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | * Use 'hwif->dma_base + {4,8}' instead of hwif->dma_prdtable in {ide,scc}_dma_setup(). * Remove no longer needed ->dma_prdtable field from ide_hwif_t. While at it: * Use ATA_DMA_TABLE_OFS define. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: remove ->dma_vendor{1,3} fields from ide_hwif_tBartlomiej Zolnierkiewicz2008-04-281-2/+0
| | | | | | | | | | | | | | | | | | | | * Use 'hwif->dma_base + {1,3}' instead of hwif->dma_vendor{1,3} in pdc202xx_new host driver. * Remove no longer needed ->dma_vendor{1,3} fields from ide_hwif_t. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: add ide_pad_transfer() helperBartlomiej Zolnierkiewicz2008-04-281-23/+2
| | | | | | | | | | | | | | | | | | | | | | | | * Add ide_pad_transfer() helper (which uses ->{in,out}put_data methods internally so the transfer is also padded to drive+host requirements) and use it instead of ide_atapi_{write_zeros,discard_data}(). * Remove no longer needed ide_atapi_{write_zeros,discard_data}(). Cc: Borislav Petkov <petkovbb@gmail.com> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: remove ->INW and ->OUTW methodsBartlomiej Zolnierkiewicz2008-04-281-2/+0
| | | | | | | | | | | | | | | | | | | | | | * Remove no longer used ->INW and ->OUTW methods. While at it: * scc_pata.c: scc_ide_{out,in}w() is called only in scc_tf_{load,read}() so inline it there. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: add ->tf_load and ->tf_read methodsBartlomiej Zolnierkiewicz2008-04-281-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | * Add ->tf_load and ->tf_read methods to ide_hwif_t and set the default methods in default_hwif_transport(). * Use ->tf_{load,read} instead o calling ide_tf_{load,read}() directly. * Make ide_tf_{load,read}() static. There should be no functional changes caused by this patch. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: factor out debugging code from ide_tf_load()Bartlomiej Zolnierkiewicz2008-04-281-0/+2
| | | | | | | | | | | | | | Factor out debugging code from ide_tf_load() to ide_tf_dump() helper and update ide_tf_load() users accordingly. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: add ide_execute_pkt_cmd() helperBartlomiej Zolnierkiewicz2008-04-281-0/+2
| | | | | | | | | | | | | | | | | | | | Add ide_execute_pkt_cmd() helper for executing PACKET command, then convert ATAPI device drivers to use it. As a nice side-effect this fixes ide-{floppy,tape,scsi} w.r.t. ide_lock taking (ide-cd was OK). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: remove ->INS{W,L} and ->OUTS{W,L} methodsBartlomiej Zolnierkiewicz2008-04-281-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | * Use ins{w,l}()/outs{w,l}() and __ide_mm_ins{w,l}()/__ide_mm_outs{w,l}() directly in ata_{in,out}put_data() (by using IDE_HFLAG_MMIO host flag to decide which I/O ops are required). * Remove no longer needed ->INS{W,L} and ->OUTS{W,L} methods (ide-h8300, au1xxx-ide and scc_pata implement their own ->{in,out}put_data methods). There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: add IDE_HFLAG_MMIO host flag (take 2)Bartlomiej Zolnierkiewicz2008-04-281-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Add IDE_HFLAG_MMIO host flag and set it for hosts which use default_hwif_mmiops(). v2: * Fix kernel panic in pmac host driver (',' should be '|'). Thanks to Kamalesh for reporting it + testing the fix and to Andrew for hinting me about the source of the issue. Cc: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: merge ->atapi_*put_bytes and ->ata_*put_data methodsBartlomiej Zolnierkiewicz2008-04-281-8/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Merge ->atapi_{in,out}put_bytes and ->ata_{in,out}put_data methods into new ->{in,out}put_data methods which take number of bytes to transfer as an argument and always do padding. While at it: * Use 'hwif' or 'drive->hwif' instead of 'HWIF(drive)'. There should be no functional changes caused by this patch (all users of ->ata_{in,out}put_data methods were using multiply-of-4 word counts). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * falconide/q40ide: add ->atapi_*put_bytes and ->ata_*put_data methods (take 2)Bartlomiej Zolnierkiewicz2008-04-281-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Add ->atapi_{in,out}put_bytes and ->ata_{in,out}put_data methods to falconide and q40ide host drivers (->ata_* methods are implemented on top of ->atapi_* methods so they also do byte-swapping now). * Cleanup atapi_{in,out}put_bytes(). v2: * Add 'struct request *rq' argument to ->ata_{in,out}put_data methods and don't byte-swap disk fs requests (we shouldn't un-swap fs requests because fs itself is stored byte-swapped on the disk) - this is how things were done before the patch (ideally device mapper should be used instead but it would break existing setups and would have some performance impact). Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Michael Schmitz <schmitz@debian.org> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Richard Zidlicky <rz@linux-m68k.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* | Merge branch 'for-linus' of ↵Linus Torvalds2008-04-282-3/+18
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6: slub: pack objects denser slub: Calculate min_objects based on number of processors. slub: Drop DEFAULT_MAX_ORDER / DEFAULT_MIN_OBJECTS slub: Simplify any_slab_object checks slub: Make the order configurable for each slab cache slub: Drop fallback to page allocator method slub: Fallback to minimal order during slab page allocation slub: Update statistics handling for variable order slabs slub: Add kmem_cache_order_objects struct slub: for_each_object must be passed the number of objects in a slab slub: Store max number of objects in the page struct. slub: Dump list of objects not freed on kmem_cache_close() slub: free_list() cleanup slub: improve kmem_cache_destroy() error message slob: fix bug - when slob allocates "struct kmem_cache", it does not force alignment.
| * slub: Fallback to minimal order during slab page allocationChristoph Lameter2008-04-271-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If any higher order allocation fails then fall back the smallest order necessary to contain at least one object. This enables fallback for all allocations to order 0 pages. The fallback will waste more memory (objects will not fit neatly) and the fallback slabs will be not as efficient as larger slabs since they contain less objects. Note that SLAB also depends on order 1 allocations for some slabs that waste too much memory if forced into PAGE_SIZE'd page. SLUB now can now deal with failing order 1 allocs which SLAB cannot do. Add a new field min that will contain the objects for the smallest possible order for a slab cache. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
| * slub: Update statistics handling for variable order slabsChristoph Lameter2008-04-271-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change the statistics to consider that slabs of the same slabcache can have different number of objects in them since they may be of different order. Provide a new sysfs field total_objects which shows the total objects that the allocated slabs of a slabcache could hold. Add a max field that holds the largest slab order that was ever used for a slab cache. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
| * slub: Add kmem_cache_order_objects structChristoph Lameter2008-04-271-2/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pack the order and the number of objects into a single word. This saves some memory in the kmem_cache_structure and more importantly allows us to fetch both values atomically. Later the slab orders become runtime configurable and we need to fetch these two items together in order to properly allocate a slab and initialize its objects. Fix the race by fetching the order and the number of objects in one word. [penberg@cs.helsinki.fi: fix memset() page order in new_slab()] Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
| * slub: Store max number of objects in the page struct.Christoph Lameter2008-04-271-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Split the inuse field up to be able to store the number of objects in this page in the page struct as well. Necessary if we want to have pages of various orders for a slab. Also avoids touching struct kmem_cache cachelines in __slab_alloc(). Update diagnostic code to check the number of objects and make sure that the number of objects always stays within the bounds of a 16 bit unsigned integer. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
* | Merge branch 'for-linus' of ↵Linus Torvalds2008-04-281-449/+449
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6: SELinux: Fix a RCU free problem with the netport cache SELinux: Made netnode cache adds faster SELinux: include/security.h whitespace, syntax, and other cleanups SELinux: policydb.h whitespace, syntax, and other cleanups SELinux: mls_types.h whitespace, syntax, and other cleanups SELinux: mls.h whitespace, syntax, and other cleanups SELinux: hashtab.h whitespace, syntax, and other cleanups SELinux: context.h whitespace, syntax, and other cleanups SELinux: ss/conditional.h whitespace, syntax, and other cleanups SELinux: selinux/include/security.h whitespace, syntax, and other cleanups SELinux: objsec.h whitespace, syntax, and other cleanups SELinux: netlabel.h whitespace, syntax, and other cleanups SELinux: avc_ss.h whitespace, syntax, and other cleanups Fixed up conflict in include/linux/security.h manually
| * | SELinux: include/security.h whitespace, syntax, and other cleanupsEric Paris2008-04-281-449/+449
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch changes include/security.h to fix whitespace and syntax issues. Things that are fixed may include (does not not have to include) whitespace at end of lines spaces followed by tabs spaces used instead of tabs spacing around parenthesis location of { around structs and else clauses location of * in pointer declarations removal of initialization of static data to keep it in the right section useless {} in if statemetns useless checking for NULL before kfree fixing of the indentation depth of switch statements no assignments in if statements include spaces around , in function calls and any number of other things I forgot to mention Signed-off-by: Eric Paris <eparis@redhat.com> Signed-off-by: James Morris <jmorris@namei.org>
* | | usbhid endianness annotations and fixesAl Viro2008-04-281-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | usb_control_msg() converts arguments to little-endian itself, doing that in caller means breakage on big-endian boxen. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | FAT_VALID_MEDIA(): remove pointless testAndrew Morton2008-04-281-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The on-disk media specification field in FAT is only 8-bits, so testing for <=0xff is pointless, and can generate a "comparison is always true due to limited range of data type" warning. While we're there, convert FAT_VALID_MEDIA() into a C function - the present implementation is buggy: it generates either one or two references to its argument. Cc: Frank Seidel <fseidel@suse.de> Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | fat: Update free_clusters even if it is untrustedOGAWA Hirofumi2008-04-281-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, free_clusters is not updated until it is trusted, because Windows doesn't update it correctly. But if user is using FAT driver of Linux, it updates free_clusters correctly. Instead, this updates it even if it's untrusted, so if free_clustes is correct, now keep correct value. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | fat: Add allow_utime optionOGAWA Hirofumi2008-04-281-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Normally utime(2) checks current process is owner of the file, or it has CAP_FOWNER capability. But FAT filesystem doesn't have uid/gid as on disk info, so normal check is too unflexible. With this option you can relax it. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | fat: fat_notify_change() and check_mode() cleanupOGAWA Hirofumi2008-04-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Rename fat_notify_change() to fat_setattr() - check_mode() cleanup - Change layout of code Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | reiserfs: unpack tails on quota filesJan Kara2008-04-281-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Quota files cannot have tails because quota_write and quota_read functions do not support them. So far when quota files did have tail, we just refused to turn quotas on it. Sadly this check has been wrong and so there are now plenty installations where quota files don't have NOTAIL flag set and so now after fixing the check, they suddently fail to turn quotas on. Since it's easy to unpack the tail from kernel, do this from reiserfs_quota_on() which solves the problem and is generally nicer to users anyway. Signed-off-by: Jan Kara <jack@suse.cz> Reported-by: <urhausen@urifabi.net> Cc: Jeff Mahoney <jeffm@suse.com> Cc: Chris Mason <chris.mason@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | md: introduce get_priority_stripe() to improve raid456 write performanceDan Williams2008-04-281-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Improve write performance by preventing the delayed_list from dumping all its stripes onto the handle_list in one shot. Delayed stripes are now further delayed by being held on the 'hold_list'. The 'hold_list' is bypassed when: * a STRIPE_IO_STARTED stripe is found at the head of 'handle_list' * 'handle_list' is empty and i/o is being done to satisfy full stripe-width write requests * 'bypass_count' is less than 'bypass_threshold'. By default the threshold is 1, i.e. every other stripe handled is a preread stripe provided the top two conditions are false. Benchmark data: System: 2x Xeon 5150, 4x SATA, mem=1GB Baseline: 2.6.24-rc7 Configuration: mdadm --create /dev/md0 /dev/sd[b-e] -n 4 -l 5 --assume-clean Test1: dd if=/dev/zero of=/dev/md0 bs=1024k count=2048 * patched: +33% (stripe_cache_size = 256), +25% (stripe_cache_size = 512) Test2: tiobench --size 2048 --numruns 5 --block 4096 --block 131072 (XFS) * patched: +13% * patched + preread_bypass_threshold = 0: +37% Changes since v1: * reduce bypass_threshold from (chunk_size / sectors_per_chunk) to (1) and make it configurable. This defaults to fairness and modest performance gains out of the box. Changes since v2: * [neilb@suse.de]: kill STRIPE_PRIO_HI and preread_needed as they are not necessary, the important change was clearing STRIPE_DELAYED in add_stripe_bio and this has been moved out to make_request for the hang fix. * [neilb@suse.de]: simplify get_priority_stripe * [dan.j.williams@intel.com]: reset the bypass_count when ->hold_list is sampled empty (+11%) * [dan.j.williams@intel.com]: decrement the bypass_count at the detection of stripes being naturally promoted off of hold_list +2%. Note, resetting bypass_count instead of decrementing on these events yields +4% but that is probably too aggressive. Changes since v3: * cosmetic fixups Tested-by: James W. Laferriere <babydr@baby-dragons.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | PM/gxfb: add hook to PM console layer that allows disabling of suspend VT switchAndres Salomon2008-04-281-2/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Prior to suspend, we allocate and switch to a new VT; after suspend, we switch back to the original VT. This can be slow, and is completely unnecessary if the framebuffer we're using can restore video properly. This adds a hook that allows drivers to select whether or not to do this vt switch, and changes the gxfb driver to call this hook. It also adds a module param to gxfb to allow controlling of the vt switch (defaulting to no switch). (Note: I'm not convinced that console_sem is the best way to protect this, but we should probably have some form of locking..) [akpm@linux-foundation.org: build fix] Signed-off-by: Andres Salomon <dilinger@debian.org> Cc: Jordan Crouse <jordan.crouse@amd.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Pavel Machek <pavel@ucw.cz> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | fb: add support for foreign endiannessAnton Vorontsov2008-04-281-9/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for the framebuffers with non-native endianness. This is done via FBINFO_FOREIGN_ENDIAN flag that will be used by the drivers. Depending on the host endianness this flag will be overwritten by FBINFO_BE_MATH internal flag, or cleared. Tested to work on MPC8360E-RDK (BE) + Fujitsu MINT framebuffer (LE). Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: <Valdis.Kletnieks@vt.edu> Cc: Clemens Koller <clemens.koller@anagramm.de> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | i2o: remove static inline forward declarationsIlpo Järvinen2008-04-281-5/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | Nothing in between of them and the later declaration with body needs them. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | quota: convert stub functions from macros into inlinesAndrew Morton2008-04-281-8/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes things like this: fs/super.c: In function `deactivate_super': fs/super.c:182: warning: statement with no effect fs/super.c: In function `do_remount_sb': fs/super.c:644: warning: statement with no effect Cc: Jan Kara <jack@ucw.cz> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | quota: quota core changes for quotaon on remountJan Kara2008-04-282-8/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, we just turn quotas off on remount of filesystem to read-only state. The patch below adds necessary framework so that we can turn quotas off on remount RO but we are able to automatically reenable them again when filesystem is remounted to RW state. All we need to do is to keep references to inodes of quota files when remounting RO and using these references to reenable quotas when remounting RW. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | quota: various style cleanupsJan Kara2008-04-282-26/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Cleanups in quota code: Change __inline__ to inline. Change some macros to inline functions. Remove vfs_quota_off_mount() macro. DQUOT_OFF() should be (0) is CONFIG_QUOTA is disabled. Move declaration of mark_dquot_dirty and dirty_dquot from quota.h to dquot.c [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | quota: do not allow setting of quota limits to too high valuesAndrew Perepechko2008-04-281-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We should check whether quota limits set via Q_SETQUOTA are not exceeding limits which quota format is able to handle. Signed-off-by: Andrew Perepechko <andrew.perepechko@sun.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | kprobes: add (un)register_jprobes for batch registrationMasami Hiramatsu2008-04-281-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce unregister_/register_jprobes() for jprobe batch registration. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Jim Keniston <jkenisto@us.ibm.com> Cc: Prasanna S Panchamukhi <prasanna@in.ibm.com> Cc: Shaohua Li <shaohua.li@intel.com> Cc: David Miller <davem@davemloft.net> Cc: "Frank Ch. Eigler" <fche@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | kprobes: add (un)register_kretprobes for batch registrationMasami Hiramatsu2008-04-281-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce unregister_/register_kretprobes() for kretprobe batch registration. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Jim Keniston <jkenisto@us.ibm.com> Cc: Prasanna S Panchamukhi <prasanna@in.ibm.com> Cc: Shaohua Li <shaohua.li@intel.com> Cc: David Miller <davem@davemloft.net> Cc: "Frank Ch. Eigler" <fche@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | kprobes: add (un)register_kprobes for batch registrationMasami Hiramatsu2008-04-281-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce unregister_/register_kprobes() for kprobe batch registration. This can reduce waiting time for synchronized_sched() when a lot of probes have to be unregistered at once. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Jim Keniston <jkenisto@us.ibm.com> Cc: Prasanna S Panchamukhi <prasanna@in.ibm.com> Cc: Shaohua Li <shaohua.li@intel.com> Cc: David Miller <davem@davemloft.net> Cc: "Frank Ch. Eigler" <fche@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | list.h: add list_is_singular()Masami Hiramatsu2008-04-281-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add list_is_singular() to check a list has just one entry. list_is_singular() is useful to check whether a list_head which have been temporarily allocated for listing objects can be released or not. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
generated by cgit v1.1 at 2025-06-08 11:32:31 +0000