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* [PATCH] dio: only call aio_complete() after returning -EIOCBQUEUEDZach Brown2006-12-101-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The only time it is safe to call aio_complete() is when the ->ki_retry function returns -EIOCBQUEUED to the AIO core. direct_io_worker() has historically done this by relying on its caller to translate positive return codes into -EIOCBQUEUED for the aio case. It did this by trying to keep conditionals in sync. direct_io_worker() knew when finished_one_bio() was going to call aio_complete(). It would reverse the test and wait and free the dio in the cases it thought that finished_one_bio() wasn't going to. Not surprisingly, it ended up getting it wrong. 'ret' could be a negative errno from the submission path but it failed to communicate this to finished_one_bio(). direct_io_worker() would return < 0, it's callers wouldn't raise -EIOCBQUEUED, and aio_complete() would be called. In the future finished_one_bio()'s tests wouldn't reflect this and aio_complete() would be called for a second time which can manifest as an oops. The previous cleanups have whittled the sync and async completion paths down to the point where we can collapse them and clearly reassert the invariant that we must only call aio_complete() after returning -EIOCBQUEUED. direct_io_worker() will only return -EIOCBQUEUED when it is not the last to drop the dio refcount and the aio bio completion path will only call aio_complete() when it is the last to drop the dio refcount. direct_io_worker() can ensure that it is the last to drop the reference count by waiting for bios to drain. It does this for sync ops, of course, and for partial dio writes that must fall back to buffered and for aio ops that saw errors during submission. This means that operations that end up waiting, even if they were issued as aio ops, will not call aio_complete() from dio. Instead we return the return code of the operation and let the aio core call aio_complete(). This is purposely done to fix a bug where AIO DIO file extensions would call aio_complete() before their callers have a chance to update i_size. Now that direct_io_worker() is explicitly returning -EIOCBQUEUED its callers no longer have to translate for it. XFS needs to be careful not to free resources that will be used during AIO completion if -EIOCBQUEUED is returned. We maintain the previous behaviour of trying to write fs metadata for O_SYNC aio+dio writes. Signed-off-by: Zach Brown <zach.brown@oracle.com> Cc: Badari Pulavarty <pbadari@us.ibm.com> Cc: Suparna Bhattacharya <suparna@in.ibm.com> Acked-by: Jeff Moyer <jmoyer@redhat.com> Cc: <xfs-masters@oss.sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] xfs: change uses of f_{dentry,vfsmnt} to use f_pathJosef "Jeff" Sipek2006-12-084-21/+21
| | | | | | | | | Change all the uses of f_{dentry,vfsmnt} to f_path.{dentry,mnt} in the xfs filesystem. Signed-off-by: Josef "Jeff" Sipek <jsipek@cs.sunysb.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Use freezeable workqueues in XFSRafael J. Wysocki2006-12-071-2/+2
| | | | | | | | | | | | Make the workqueues used by XFS freezeable, so their worker threads don't submit any I/O after the suspend image has been created. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@ucw.cz> Cc: Nigel Cunningham <nigel@suspend2.net> Cc: David Chinner <dgc@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Add include/linux/freezer.h and move definitions from sched.hNigel Cunningham2006-12-072-0/+2
| | | | | | | | | | | | | Move process freezing functions from include/linux/sched.h to freezer.h, so that modifications to the freezer or the kernel configuration don't require recompiling just about everything. [akpm@osdl.org: fix ueagle driver] Signed-off-by: Nigel Cunningham <nigel@suspend2.net> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* WorkStruct: make allyesconfigDavid Howells2006-11-222-13/+17
| | | | | | Fix up for make allyesconfig. Signed-Off-By: David Howells <dhowells@redhat.com>
* [XFS] Remove KERNEL_VERSION macros from xfs_dmapi.hDavid Chinner2006-11-111-0/+28
| | | | | | | | | SGI-PV: 957005 SGI-Modid: xfs-linux-melb:xfs-kern:27398a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Michal Piotrowski <michal.k.k.piotrowski@gmail.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Clean up i_flags and i_flags_lock handling.David Chinner2006-11-111-3/+1
| | | | | | | | | SGI-PV: 956832 SGI-Modid: xfs-linux-melb:xfs-kern:27358a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Nathan Scott <nscott@aconex.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] 956664: dm_read_invis() changes i_atimeVlad Apostolov2006-11-111-1/+4
| | | | | | | | | SGI-PV: 956664 SGI-Modid: xfs-linux-melb:xfs-kern:27315a Signed-off-by: Vlad Apostolov <vapo@sgi.com> Signed-off-by: Sam Vaughan <sjv@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] 956618: Linux crashes on boot with XFS-DMAPI filesystem whenVlad Apostolov2006-11-111-2/+2
| | | | | | | | | | CONFIG_XFS_TRACE is on SGI-PV: 956618 SGI-Modid: xfs-linux-melb:xfs-kern:27196a Signed-off-by: Vlad Apostolov <vapo@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [PATCH] separate bdi congestion functions from queue congestion functionsAndrew Morton2006-10-202-3/+5
| | | | | | | | | | | | | | | | | | | Separate out the concept of "queue congestion" from "backing-dev congestion". Congestion is a backing-dev concept, not a queue concept. The blk_* congestion functions are retained, as wrappers around the core backing-dev congestion functions. This proper layering is needed so that NFS can cleanly use the congestion functions, and so that CONFIG_BLOCK=n actually links. Cc: "Thomas Maier" <balagi@justmail.de> Cc: "Jens Axboe" <jens.axboe@oracle.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: David Howells <dhowells@redhat.com> Cc: Peter Osterlund <petero2@telia.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Streamline generic_file_* interfaces and filemap cleanupsBadari Pulavarty2006-10-011-1/+3
| | | | | | | | | | | | | | | | | | | | | | This patch cleans up generic_file_*_read/write() interfaces. Christoph Hellwig gave me the idea for this clean ups. In a nutshell, all filesystems should set .aio_read/.aio_write methods and use do_sync_read/ do_sync_write() as their .read/.write methods. This allows us to cleanup all variants of generic_file_* routines. Final available interfaces: generic_file_aio_read() - read handler generic_file_aio_write() - write handler generic_file_aio_write_nolock() - no lock write handler __generic_file_aio_write_nolock() - internal worker routine Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Remove readv/writev methods and use aio_read/aio_write insteadBadari Pulavarty2006-10-011-94/+0
| | | | | | | | | | This patch removes readv() and writev() methods and replaces them with aio_read()/aio_write() methods. Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Vectorize aio_read/aio_write fileop methodsBadari Pulavarty2006-10-011-23/+23
| | | | | | | | | | | | This patch vectorizes aio_read() and aio_write() methods to prepare for collapsing all aio & vectored operations into one interface - which is aio_read()/aio_write(). Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Michael Holzheu <HOLZHEU@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [XFS] pv 956240, author: nathans, rv: vapo - Minor fixes inVlad Apostolov2006-09-281-6/+11
| | | | | | | | | | kmem_zalloc_greedy() SGI-PV: 956240 SGI-Modid: xfs-linux-melb:xfs-kern:26983a Signed-off-by: Vlad Apostolov <vapo@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Really fix use after free in xfs_iunpin.David Chinner2006-09-281-0/+2
| | | | | | | | | | | | | | | The previous attempts to fix the linux inode use-after-free in xfs_iunpin simply made the problem harder to hit. We actually need complete exclusion between xfs_reclaim and xfs_iunpin, as well as ensuring that the i_flags are consistent during both of these functions. Introduce a new spinlock for exclusion and the i_flags, and fix up xfs_iunpin to use igrab before marking the inode dirty. SGI-PV: 952967 SGI-Modid: xfs-linux-melb:xfs-kern:26964a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Collapse sv_init and init_sv into just the one interface.Eric Sandeen2006-09-281-2/+0
| | | | | | | | | SGI-PV: 907752 SGI-Modid: xfs-linux-melb:xfs-kern:26925a Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] standardize on one sema init macroEric Sandeen2006-09-281-2/+0
| | | | | | | | | | | One sema to rule them all, one sema to find them... SGI-PV: 907752 SGI-Modid: xfs-linux-melb:xfs-kern:26911a Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Minor cleanup from dio locking fix, remove an extra conditional.Nathan Scott2006-09-281-5/+5
| | | | | | | | SGI-PV: 955696 SGI-Modid: xfs-linux-melb:xfs-kern:26908a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Fix a porting botch on the realtime subvol growfs code path.Nathan Scott2006-09-281-0/+7
| | | | | | | | SGI-PV: 955515 SGI-Modid: xfs-linux-melb:xfs-kern:26806a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Remove a no-longer-correct debug assert from dio completionNathan Scott2006-09-281-1/+0
| | | | | | | | | | handling. SGI-PV: 955302 SGI-Modid: xfs-linux-melb:xfs-kern:26804a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Add a greedy allocation interface, allocating within a min/max sizeNathan Scott2006-09-282-1/+18
| | | | | | | | | | range. SGI-PV: 955302 SGI-Modid: xfs-linux-melb:xfs-kern:26803a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Improve error handling for the zero-fsblock extent detection code.Nathan Scott2006-09-281-1/+1
| | | | | | | | SGI-PV: 955302 SGI-Modid: xfs-linux-melb:xfs-kern:26802a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Be more defensive with page flags (error/private) for metadataNathan Scott2006-09-281-3/+8
| | | | | | | | | | buffers. SGI-PV: 955302 SGI-Modid: xfs-linux-melb:xfs-kern:26801a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Add a debug flag for allocations which are known to be larger thanNathan Scott2006-09-283-2/+11
| | | | | | | | | | one page. SGI-PV: 955302 SGI-Modid: xfs-linux-melb:xfs-kern:26800a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Remove several macros that are no longer used anywhereEric Sandeen2006-09-282-9/+0
| | | | | | | | | SGI-PV: 955302 SGI-Modid: xfs-linux-melb:xfs-kern:26749a Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Remove a couple of unused BUF macrosEric Sandeen2006-09-281-5/+0
| | | | | | | | | SGI-PV: 955302 SGI-Modid: xfs-linux-melb:xfs-kern:26746a Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] When issuing metadata readahead, submit bio with READA not READ.Nathan Scott2006-09-281-7/+7
| | | | | | | | SGI-PV: 944409 SGI-Modid: xfs-linux-melb:xfs-kern:26603a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Update XFS for i_blksize removal from generic inode structureNathan Scott2006-09-281-5/+20
| | | | | | | | SGI-PV: 954366 SGI-Modid: xfs-linux-melb:xfs-kern:26565a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] remove accidentally reintroduced vfs unmount flag, unneeded inNathan Scott2006-09-281-1/+1
| | | | | | | | | | current kernels SGI-PV: 954580 SGI-Modid: xfs-linux-melb:xfs-kern:26564a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] remove bhv_lookup, _range version works aswell and has more usefulChristoph Hellwig2006-09-281-2/+0
| | | | | | | | | | | semantics. SGI-PV: 954580 SGI-Modid: xfs-linux-melb:xfs-kern:26563a Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Fix sparse warning found when page tracing enabled, due toNathan Scott2006-09-281-4/+4
| | | | | | | | | | overloaded gfp_t param. SGI-PV: 954580 SGI-Modid: xfs-linux-melb:xfs-kern:26552a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] move XFS_IOC_GETVERSION to main multiplexerAlexey Dobriyan2006-09-281-7/+2
| | | | | | | | | | | | Avoids doing an unnecessary inode to vnode conversion and avoids a memory allocation. SGI-PV: 904196 SGI-Modid: xfs-linux-melb:xfs-kern:26492a Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Improve xfsbufd delayed write submission patterns, after blktraceNathan Scott2006-09-281-10/+14
| | | | | | | | | | | | | | | | | | analysis. Under a sequential create+allocate workload, blktrace reported backward writes being issued by xfsbufd, and frequent inappropriate queue unplugs. We now insert at the tail when moving from the delwri lists to the temp lists, which maintains correct ordering, and we avoid unplugging queues deep in the submit paths when we'd shortly do it at a higher level anyway. blktrace now reports much healthier write patterns from xfsbufd for this workload (and likely many others). SGI-PV: 954310 SGI-Modid: xfs-linux-melb:xfs-kern:26396a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] pass inode to xfs_ioc_space(), simplify some code. There is trivialAlexey Dobriyan2006-09-281-5/+5
| | | | | | | | | | | | "inode => vnode => inode" conversion, but only flags and mode of final inode are looked at. Pass original inode instead. SGI-PV: 904196 SGI-Modid: xfs-linux-melb:xfs-kern:26395a Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [PATCH] inode-diet: Eliminate i_blksize from the inode structureTheodore Ts'o2006-09-272-2/+0
| | | | | | | | | | | | | | | | This eliminates the i_blksize field from struct inode. Filesystems that want to provide a per-inode st_blksize can do so by providing their own getattr routine instead of using the generic_fillattr() function. Note that some filesystems were providing pretty much random (and incorrect) values for i_blksize. [bunk@stusta.de: cleanup] [akpm@osdl.org: generic_fillattr() fix] Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Really ignore kmem_cache_destroy return valueAlexey Dobriyan2006-09-271-2/+2
| | | | | | | | | | | | | | | | * Rougly half of callers already do it by not checking return value * Code in drivers/acpi/osl.c does the following to be sure: (void)kmem_cache_destroy(cache); * Those who check it printk something, however, slab_error already printed the name of failed cache. * XFS BUGs on failed kmem_cache_destroy which is not the decision low-level filesystem driver should make. Converted to ignore. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fs: Removing useless castsPanagiotis Issaris2006-09-272-3/+3
| | | | | | | | | | | * Removing useless casts * Removing useless wrapper * Conversion from kmalloc+memset to kzalloc Signed-off-by: Panagiotis Issaris <takis@issaris.org> Acked-by: Dave Kleikamp <shaggy@austin.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [XFS] Fix xfs_splice_write() so appended data gets to disk.David Chinner2006-09-071-0/+16
| | | | | | | | | | | | | xfs_splice_write() failed to update the on disk inode size when extending the so when the file was closed the range extended by splice was truncated off. Hence any region of a file written to by splice would end up as a hole full of zeros. SGI-PV: 955939 SGI-Modid: xfs-linux-melb:xfs-kern:26920a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: David Chatterton <chatz@sgi.com>
* [XFS] Fix ABBA deadlock between i_mutex and iolock. Avoid callingLachlan McIlroy2006-09-072-10/+19
| | | | | | | | | | | | __blockdev_direct_IO for the DIO_OWN_LOCKING case for direct I/O reads since it drops and reacquires the i_mutex while holding the iolock and this violates the locking order. SGI-PV: 955696 SGI-Modid: xfs-linux-melb:xfs-kern:26898a Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: David Chatterton <chatz@sgi.com>
* [XFS] Fix a barrier related forced shutdown on mounts with quota enabled.Nathan Scott2006-07-281-0/+7
| | | | | | | SGI-PV: 912426 SGI-Modid: xfs-linux-melb:xfs-kern:26622a Signed-off-by: Nathan Scott <nathans@sgi.com>
* [XFS] Fix remount vs no/barrier options by ensuring we clear unwantedNathan Scott2006-07-281-2/+2
| | | | | | | | | flags from iclog buffers before submitting them for writing. SGI-PV: 954772 SGI-Modid: xfs-linux-melb:xfs-kern:26605a Signed-off-by: Nathan Scott <nathans@sgi.com>
* [PATCH] FDPIC: Move roundup() into linux/kernel.hDavid Howells2006-07-101-1/+0
| | | | | | | | | | Move the roundup() macro from binfmt_elf.c into linux/kernel.h as it's generally useful. [akpm@osdl.org: nuke all the other implementations] Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Remove obsolete #include <linux/config.h>Jörn Engel2006-06-303-3/+0
| | | | | Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [PATCH] mark address_space_operations constChristoph Hellwig2006-06-283-3/+3
| | | | | | | | | | Same as with already do with the file operations: keep them in .rodata and prevents people from doing runtime patching. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Steven French <sfrench@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [XFS] Remove a race condition where a linked inode could BUG_ON inNathan Scott2006-06-271-2/+4
| | | | | | | | | | d_instantiate, due to fast transaction committal removing the last remaining reference before we were all done. SGI-PV: 953287 SGI-Modid: xfs-linux-melb:xfs-kern:26347a Signed-off-by: Nathan Scott <nathans@sgi.com>
* [XFS] Remove redundant directory checks from inode link operation.Alexey Dobriyan2006-06-271-3/+0
| | | | | | | | SGI-PV: 904196 SGI-Modid: xfs-linux-melb:xfs-kern:26343a Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
* [XFS] Remove a couple of no-longer-used macros.Nathan Scott2006-06-271-2/+0
| | | | | | | SGI-PV: 904196 SGI-Modid: xfs-linux-melb:xfs-kern:26339a Signed-off-by: Nathan Scott <nathans@sgi.com>
* [XFS] * There is trivial "inode => vnode => inode" conversion, but onlyAlexey Dobriyan2006-06-271-1/+1
| | | | | | | | | | | flags and mode of final inode are looked at. Pass original inode instead. * Two occurences of bhv_vnode_t go out. SGI-PV: 904196 SGI-Modid: xfs-linux-melb:xfs-kern:26298a Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
* [PATCH] xfs: update ->flush method protoAlexey Dobriyan2006-06-251-1/+2
| | | | | | | Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Nathan Scott <nathans@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] for_each_possible_cpu: xfsKAMEZAWA Hiroyuki2006-06-232-3/+3
| | | | | | | | | | | | | | | | | | for_each_cpu() actually iterates across all possible CPUs. We've had mistakes in the past where people were using for_each_cpu() where they should have been iterating across only online or present CPUs. This is inefficient and possibly buggy. We're renaming for_each_cpu() to for_each_possible_cpu() to avoid this in the future. This patch replaces for_each_cpu with for_each_possible_cpu. in xfs. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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