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2007-03-22[PATCH] Make XFS workqueues nonfreezableRafael J. Wysocki
Since freezable workqueues are broken in 2.6.21-rc (cf. http://marc.theaimsgroup.com/?l=linux-kernel&m=116855740612755, http://marc.theaimsgroup.com/?l=linux-kernel&m=117261312523921&w=2) it's better to change the only user of them, which is XFS, to use "normal" nonfreezable workqueues. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Cc: Pavel Machek <pavel@ucw.cz> Cc: David Chinner <dgc@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-20[PATCH] xfs warning fixAndrew Morton
fs/xfs/linux-2.6/xfs_super.c:903: warning: 'noinline' attribute ignored Cc: David Chinner <dgc@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-14[PATCH] sysctl: remove insert_at_head from register_sysctlEric W. Biederman
The semantic effect of insert_at_head is that it would allow new registered sysctl entries to override existing sysctl entries of the same name. Which is pain for caching and the proc interface never implemented. I have done an audit and discovered that none of the current users of register_sysctl care as (excpet for directories) they do not register duplicate sysctl entries. So this patch simply removes the support for overriding existing entries in the sys_sysctl interface since no one uses it or cares and it makes future enhancments harder. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: David Howells <dhowells@redhat.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Andi Kleen <ak@muc.de> Cc: Jens Axboe <axboe@kernel.dk> Cc: Corey Minyard <minyard@acm.org> Cc: Neil Brown <neilb@suse.de> Cc: "John W. Linville" <linville@tuxdriver.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Jan Kara <jack@ucw.cz> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: Mark Fasheh <mark.fasheh@oracle.com> Cc: David Chinner <dgc@sgi.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Patrick McHardy <kaber@trash.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-14[PATCH] remove many unneeded #includes of sched.hTim Schmielau
After Al Viro (finally) succeeded in removing the sched.h #include in module.h recently, it makes sense again to remove other superfluous sched.h includes. There are quite a lot of files which include it but don't actually need anything defined in there. Presumably these includes were once needed for macros that used to live in sched.h, but moved to other header files in the course of cleaning it up. To ease the pain, this time I did not fiddle with any header files and only removed #includes from .c-files, which tend to cause less trouble. Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha, arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig, allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all configs in arch/arm/configs on arm. I also checked that no new warnings were introduced by the patch (actually, some warnings are removed that were emitted by unnecessarily included header files). Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12[PATCH] mark struct inode_operations const 3Arjan van de Ven
Many struct inode_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12[PATCH] Make XFS use BH_Unwritten and BH_Delay correctlyDavid Chinner
Don't hide buffer_unwritten behind buffer_delay() and remove the hack that clears unexpected buffer_unwritten() states now that it can't happen. Signed-off-by: Dave Chinner <dgc@sgi.com> Acked-by: Christoph Hellwig <hch@lst.de> Cc: Timothy Shimmin <tes@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12[PATCH] Make BH_Unwritten a first class bufferhead flag V2David Chinner
Currently, XFS uses BH_PrivateStart for flagging unwritten extent state in a bufferhead. Recently, I found the long standing mmap/unwritten extent conversion bug, and it was to do with partial page invalidation not clearing the unwritten flag from bufferheads attached to the page but beyond EOF. See here for a full explaination: http://oss.sgi.com/archives/xfs/2006-12/msg00196.html The solution I have checked into the XFS dev tree involves duplicating code from block_invalidatepage to clear the unwritten flag from the bufferhead(s), and then calling block_invalidatepage() to do the rest. Christoph suggested that this would be better solved by pushing the unwritten flag into the common buffer head flags and just adding the call to discard_buffer(): http://oss.sgi.com/archives/xfs/2006-12/msg00239.html The following patch makes BH_Unwritten a first class citizen. Signed-off-by: Dave Chinner <dgc@sgi.com> Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-10[XFS] Don't use kmap in xfs_iozero.David Chinner
kmap() is inefficient and does not scale well. kmap_atomic() is a better choice. Use the generic wrapper function instead of open coding the kmap-memset-dcache flush-kunmap stuff. SGI-PV: 960904 SGI-Modid: xfs-linux-melb:xfs-kern:28041a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Tim Shimmin <tes@sgi.com>
2007-02-10[XFS] Remove unused header files for MAC and CAP checking functionality.Eric Sandeen
xfs_mac.h and xfs_cap.h provide definitions and macros that aren't used anywhere in XFS at all. They are left-overs from "to be implement at some point in the future" functionality that Irix XFS has. If this functionality ever goes into Linux, it will be provided at a different layer, most likely through the security hooks in the kernel so we will never need this functionality in XFS. Patch provided by Eric Sandeen (sandeen@sandeen.net). SGI-PV: 960895 SGI-Modid: xfs-linux-melb:xfs-kern:28036a Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2007-02-10[XFS] Make freeze code a little cleaner.David Chinner
Fixes a few small issues (mostly cosmetic) that were picked up during the review cycle for the last set of freeze path changes. SGI-PV: 959267 SGI-Modid: xfs-linux-melb:xfs-kern:28035a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Tim Shimmin <tes@sgi.com>
2007-02-10[XFS] Clean up use of VFS attr flagsEric Sandeen
Use the the generic VFS attr flags where appropriate instead of open coding them to the same values. Patch provided by Eric Sandeen. SGI-PV: 960868 SGI-Modid: xfs-linux-melb:xfs-kern:28033a Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Tim Shimmin <tes@sgi.com>
2007-02-10[XFS] Remove useless memory barrierRalf Baechle
wake_up's implementation does an implicit memory barrier so the explicit memory barrier is not needed in vfs_sync_worker. Patch provided by Ralf Baechle. SGI-PV: 960867 SGI-Modid: xfs-linux-melb:xfs-kern:28032a Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2007-02-10[XFS] XFS sysctl cleanupsEric W. Biederman
Removes unneeded sysctl insert at head behaviour. Cleans up sysctl definitions to use C99 initialisers. Patch provided by Eric W. Biederman. SGI-PV: 960192 SGI-Modid: xfs-linux-melb:xfs-kern:28031a Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2007-02-10[XFS] Fix callers of xfs_iozero() to zero the correct range.Lachlan McIlroy
The problem is the two callers of xfs_iozero() are rounding out the range to be zeroed to the end of a fsb and in some cases this extends past the new eof. The call to commit_write() in xfs_iozero() will cause the Linux inode's file size to be set too high. SGI-PV: 960788 SGI-Modid: xfs-linux-melb:xfs-kern:28013a Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2007-02-10[XFS] Ensure a frozen filesystem has a clean log before writing the dummyDavid Chinner
record. The current Linux XFS freeze code is a mess. We flush the metadata buffers out while we are still allowing new transactions to start and then fail to flush the dirty buffers back out before writing the unmount and dummy records to the log. This leads to problems when the frozen filesystem is used for snapshots - we do log recovery on a readonly image and often it appears that the log image in the snapshot is not correct. Hence we end up with hangs, oops and mount failures when trying to mount a snapshot image that has been created when the filesystem has not been correctly frozen. To fix this, we need to move th metadata flush to after we wait for all current transactions to complete in teh second stage of the freeze. This means that when we write the final log records, the log should be clean and recovery should never occur on a snapshot image created from a frozen filesystem. SGI-PV: 959267 SGI-Modid: xfs-linux-melb:xfs-kern:28010a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Donald Douwsma <donaldd@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2007-02-10[XFS] Fix sub-block zeroing for buffered writes into unwritten extents.David Chinner
When writing less than a filesystem block of data into an unwritten extent via buffered I/O, __xfs_get_blocks fails to set the buffer new flag. As a result, the generic code will not zero either edge of the block resulting in garbage being written to disk either side of the real data. Set the buffer new state on bufferd writes to unwritten extents to ensure that zeroing occurs. SGI-PV: 960328 SGI-Modid: xfs-linux-melb:xfs-kern:28000a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2007-02-10[XFS] remove unused filp from ioctl functionsLachlan McIlroy
SGI-PV: 959140 SGI-Modid: xfs-linux-melb:xfs-kern:27712a Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Signed-off-by: Tim Shimmin <tes@sgi.com>
2007-02-10[XFS] mraccessf & mrupdatef are supposed to be the "flags" versions of theLachlan McIlroy
functions, but they a) ignore the flags parameter completely, and b) are never called directly, only via the flag-less defines anyway So, drop the #define indirection, and rename mraccessf to mraccess, etc. SGI-PV: 959138 SGI-Modid: xfs-linux-melb:xfs-kern:27711a Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Signed-off-by: Tim Shimmin <tes@sgi.com>
2007-02-10[XFS] use struct kvec in struct uioLachlan McIlroy
SGI-PV: 954580 SGI-Modid: xfs-linux-melb:xfs-kern:27701a Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Tim Shimmin <tes@sgi.com>
2007-02-10[XFS] Keep stack usage down for 4k stacks by using noinline.David Chinner
gcc-4.1 and more recent aggressively inline static functions which increases XFS stack usage by ~15% in critical paths. Prevent this from occurring by adding noinline to the STATIC definition. Also uninline some functions that are too large to be inlined and were causing problems with CONFIG_FORCED_INLINING=y. Finally, clean up all the different users of inline, __inline and __inline__ and put them under one STATIC_INLINE macro. For debug kernels the STATIC_INLINE macro uninlines those functions. SGI-PV: 957159 SGI-Modid: xfs-linux-melb:xfs-kern:27585a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: David Chatterton <chatz@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2007-02-10[XFS] Current usage of buftarg flags is incorrect.David Chinner
The {test,set,clear}_bit() operations take a bit index for the bit to operate on. The XBT_* flags are defined as bit fields which is incorrect, not to mention the way the bit fields are enumerated is broken too. This was only working by chance. Fix the definitions of the flags and make the code using them use the {test,set,clear}_bit() operations correctly. SGI-PV: 958639 SGI-Modid: xfs-linux-melb:xfs-kern:27565a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2007-02-10[XFS] Fix a synchronous buftarg flush deadlock when freezing.David Chinner
At the last stage of a freeze, we flush the buftarg synchronously over and over again until it succeeds twice without skipping any buffers. The delwri list flush skips pinned buffers, but tries to flush all others. It removes the buffers from the delwri list, then tries to lock them one at a time as it traverses the list to issue the I/O. It holds them locked until we issue all of the I/O and then unlocks them once we've waited for it to complete. The problem is that during a freeze, the filesystem may still be doing stuff - like flushing delalloc data buffers - in the background and hence we can be trying to lock buffers that were on the delwri list at the same time. Hence we can get ABBA deadlocks between threads doing allocation and the buftarg flush (freeze) thread. Fix it by skipping locked (and pinned) buffers as we traverse the delwri buffer list. SGI-PV: 957195 SGI-Modid: xfs-linux-melb:xfs-kern:27535a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-12-21[PATCH] Fix XFS after clear_page_dirty() removalDavid Chinner
XFS appears to call clear_page_dirty to get the mapping tree dirty tag set correctly at the same time the page dirty flag is cleared. I note that this can be done by set_page_writeback() if we clear the dirty flag on the page first when we are writing back the entire page. Hence it seems to me that the XFS call to clear_page_dirty() could easily be substituted by clear_page_dirty_for_io() followed by a call to set_page_writeback() to get the mapping tree tags set correctly after the page has been marked clean. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-10[PATCH] dio: only call aio_complete() after returning -EIOCBQUEUEDZach Brown
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>
2006-12-08[PATCH] xfs: change uses of f_{dentry,vfsmnt} to use f_pathJosef "Jeff" Sipek
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>
2006-12-07[PATCH] Use freezeable workqueues in XFSRafael J. Wysocki
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>
2006-12-07[PATCH] Add include/linux/freezer.h and move definitions from sched.hNigel Cunningham
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>
2006-11-22WorkStruct: make allyesconfigDavid Howells
Fix up for make allyesconfig. Signed-Off-By: David Howells <dhowells@redhat.com>
2006-11-11[XFS] Remove KERNEL_VERSION macros from xfs_dmapi.hDavid Chinner
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>
2006-11-11[XFS] Clean up i_flags and i_flags_lock handling.David Chinner
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>
2006-11-11[XFS] 956664: dm_read_invis() changes i_atimeVlad Apostolov
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>
2006-11-11[XFS] 956618: Linux crashes on boot with XFS-DMAPI filesystem whenVlad Apostolov
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>
2006-10-20[PATCH] separate bdi congestion functions from queue congestion functionsAndrew Morton
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>
2006-10-01[PATCH] Streamline generic_file_* interfaces and filemap cleanupsBadari Pulavarty
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>
2006-10-01[PATCH] Remove readv/writev methods and use aio_read/aio_write insteadBadari Pulavarty
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>
2006-10-01[PATCH] Vectorize aio_read/aio_write fileop methodsBadari Pulavarty
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>
2006-09-28[XFS] pv 956240, author: nathans, rv: vapo - Minor fixes inVlad Apostolov
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>
2006-09-28[XFS] Really fix use after free in xfs_iunpin.David Chinner
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>
2006-09-28[XFS] Collapse sv_init and init_sv into just the one interface.Eric Sandeen
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>
2006-09-28[XFS] standardize on one sema init macroEric Sandeen
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>
2006-09-28[XFS] Minor cleanup from dio locking fix, remove an extra conditional.Nathan Scott
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>
2006-09-28[XFS] Fix a porting botch on the realtime subvol growfs code path.Nathan Scott
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>
2006-09-28[XFS] Remove a no-longer-correct debug assert from dio completionNathan Scott
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>
2006-09-28[XFS] Add a greedy allocation interface, allocating within a min/max sizeNathan Scott
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>
2006-09-28[XFS] Improve error handling for the zero-fsblock extent detection code.Nathan Scott
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>
2006-09-28[XFS] Be more defensive with page flags (error/private) for metadataNathan Scott
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>
2006-09-28[XFS] Add a debug flag for allocations which are known to be larger thanNathan Scott
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>
2006-09-28[XFS] Remove several macros that are no longer used anywhereEric Sandeen
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>
2006-09-28[XFS] Remove a couple of unused BUF macrosEric Sandeen
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>
2006-09-28[XFS] When issuing metadata readahead, submit bio with READA not READ.Nathan Scott
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>