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linux/fs/xfs/linux-2.6
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Dave Chinner 089716aa14 xfs: Sort delayed write buffers before dispatch 
Currently when the xfsbufd writes delayed write buffers, it pushes
them to disk in the order they come off the delayed write list. If
there are lots of buffers Ń•pread widely over the disk, this results
in overwhelming the elevator sort queues in the block layer and we
end up losing the posibility of merging adjacent buffers to minimise
the number of IOs.

Use the new generic list_sort function to sort the delwri dispatch
queue before issue to ensure that the buffers are pushed in the most
friendly order possible to the lower layers.

Signed-off-by: Dave Chinner <david@fromorbit.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
2010-01-26 15:13:25 +11:00
..
kmem.c xfs: replace KM_LARGE with explicit vmalloc use 2010-01-21 13:44:56 -06:00
kmem.h xfs: replace KM_LARGE with explicit vmalloc use 2010-01-21 13:44:56 -06:00
mrlock.h [XFS] shrink mrlock_t 2008-04-29 15:54:02 +10:00
sv.h remove dead code from sv_t implementation 2008-12-04 15:39:21 +11:00
time.h
xfs_acl.c xfs: convert attr to use unsigned names 2010-01-20 10:47:48 +11:00
xfs_aops.c cleanup blockdev_direct_IO locking 2009-12-16 12:16:49 -05:00
xfs_aops.h xfs: event tracing support 2009-12-14 23:08:16 -06:00
xfs_buf.c xfs: Sort delayed write buffers before dispatch 2010-01-26 15:13:25 +11:00
xfs_buf.h xfs: Don't issue buffer IO direct from AIL push V2 2010-02-02 10:13:42 +11:00
xfs_cred.h [XFS] Fix merge failures 2008-12-29 16:47:18 +11:00
xfs_dmapi_priv.h
xfs_export.c [XFS] pass XFS_IGET_BULKSTAT to xfs_iget for handle operations 2009-01-09 15:17:17 +11:00
xfs_export.h
xfs_file.c xfs: remove IO_ISAIO 2009-12-11 15:11:21 -06:00
xfs_fs_subr.c xfs: remove duplicate buffer flags 2010-01-21 13:44:36 -06:00
xfs_fs_subr.h
xfs_globals.c [XFS] remove restricted chown parameter from xfs linux 2008-10-30 18:30:48 +11:00
xfs_globals.h CRED: Separate task security context from task_struct 2008-11-14 10:39:16 +11:00
xfs_ioctl.c xfs: more reserved blocks fixups 2010-02-08 17:41:48 -06:00
xfs_ioctl.h xfs: convert attr to use unsigned names 2010-01-20 10:47:48 +11:00
xfs_ioctl32.c xfs: convert attr to use unsigned names 2010-01-20 10:47:48 +11:00
xfs_ioctl32.h [XFS] fix compile on 32 bit systems 2008-12-04 13:07:29 +11:00
xfs_iops.c xfs: convert attr to use unsigned names 2010-01-20 10:47:48 +11:00
xfs_iops.h [XFS] add a FMODE flag to make XFS invisible I/O less hacky 2008-12-11 13:14:41 +11:00
xfs_linux.h xfs: event tracing support 2009-12-14 23:08:16 -06:00
xfs_lrw.c xfs: move more buffer helpers into xfs_buf.c 2010-01-15 15:35:17 -06:00
xfs_lrw.h xfs: move more buffer helpers into xfs_buf.c 2010-01-15 15:35:17 -06:00
xfs_quotaops.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/fs/xfs/xfs 2009-10-31 12:12:49 -07:00
xfs_stats.c xfs: switch to seq_file 2009-09-15 12:29:24 -05:00
xfs_stats.h [XFS] add new btree statistics 2008-10-30 16:55:03 +11:00
xfs_super.c xfs: Use delayed write for inodes rather than async V2 2010-02-06 12:39:36 +11:00
xfs_super.h xfs: event tracing support 2009-12-14 23:08:16 -06:00
xfs_sync.c xfs: Use delayed write for inodes rather than async V2 2010-02-06 12:39:36 +11:00
xfs_sync.h xfs: make several more functions static 2010-01-15 15:31:38 -06:00
xfs_sysctl.c sysctl: Drop & in front of every proc_handler. 2009-11-18 08:37:40 -08:00
xfs_sysctl.h [XFS] remove restricted chown parameter from xfs linux 2008-10-30 18:30:48 +11:00
xfs_trace.c xfs: event tracing support 2009-12-14 23:08:16 -06:00
xfs_trace.h xfs: Don't issue buffer IO direct from AIL push V2 2010-02-02 10:13:42 +11:00
xfs_version.h
xfs_vnode.h xfs: event tracing support 2009-12-14 23:08:16 -06:00
xfs_xattr.c xfs: convert attr to use unsigned names 2010-01-20 10:47:48 +11:00