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50e86686df
linux/fs/xfs
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Dave Chinner 50e86686df xfs: always push the AIL to the target 
The recent conversion of the xfsaild functionality to a work queue
introduced a hard-to-hit log space grant hang. One of the problems
discovered is a target mismatch between the item pushing loop and
the target itself.

The push trigger checks for the target increasing (i.e. new target >
current) while the push loop only pushes items that have a LSN <
current. As a result, we can get the situation where the push target
is X, the items at the tail of the AIL have LSN X and they don't get
pushed. The push work then completes thinking it is done, and cannot
be restarted until the push target increases to >= X + 1. If the
push target then never increases (because the tail is not moving),
then we never run the push work again and we stall.

Fix it by making sure log items with a LSN that matches the target
exactly are pushed during the loop.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>

(cherry picked from commit cb64026b6e)
2011-05-09 18:35:03 -05:00
..
linux-2.6 xfs: ensure reclaim cursor is reset correctly at end of AG 2011-05-09 18:35:03 -05:00
quota Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs 2011-04-11 15:48:57 -07:00
support xfs: kill support/debug.[ch] 2011-03-07 10:09:35 +11:00
Kconfig
Makefile Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs 2011-03-21 14:24:56 -07:00
xfs_acl.h fs: provide rcu-walk aware permission i_ops 2011-01-07 17:50:29 +11:00
xfs_ag.h
xfs_alloc_btree.c
xfs_alloc_btree.h
xfs_alloc.c xfs: catch bad block numbers freeing extents. 2011-04-08 12:45:07 +10:00
xfs_alloc.h xfs: limit extent length for allocation to AG size 2011-01-28 09:05:35 -06:00
xfs_arch.h
xfs_attr_leaf.c
xfs_attr_leaf.h
xfs_attr_sf.h
xfs_attr.c
xfs_attr.h
xfs_bit.c
xfs_bit.h
xfs_bmap_btree.c
xfs_bmap_btree.h
xfs_bmap.c xfs: Convert remaining cmn_err() callers to new API 2011-03-07 10:08:35 +11:00
xfs_bmap.h
xfs_btree_trace.c
xfs_btree_trace.h
xfs_btree.c
xfs_btree.h
xfs_buf_item.c Fix common misspellings 2011-03-31 11:26:23 -03:00
xfs_buf_item.h
xfs_da_btree.c xfs: Convert remaining cmn_err() callers to new API 2011-03-07 10:08:35 +11:00
xfs_da_btree.h
xfs_dfrag.c xfs: convert xfs_fs_cmn_err to new error logging API 2011-03-07 10:05:35 +11:00
xfs_dfrag.h
xfs_dinode.h
xfs_dir2_block.c
xfs_dir2_block.h
xfs_dir2_data.c
xfs_dir2_data.h
xfs_dir2_leaf.c
xfs_dir2_leaf.h
xfs_dir2_node.c xfs: Convert remaining cmn_err() callers to new API 2011-03-07 10:08:35 +11:00
xfs_dir2_node.h
xfs_dir2_sf.c
xfs_dir2_sf.h
xfs_dir2.c xfs: convert xfs_fs_cmn_err to new error logging API 2011-03-07 10:05:35 +11:00
xfs_dir2.h
xfs_error.c xfs: Convert remaining cmn_err() callers to new API 2011-03-07 10:08:35 +11:00
xfs_error.h xfs: kill support/debug.[ch] 2011-03-07 10:09:35 +11:00
xfs_extfree_item.c xfs: fix efi item leak on forced shutdown 2011-01-28 09:01:33 -06:00
xfs_extfree_item.h
xfs_filestream.c
xfs_filestream.h
xfs_fs.h
xfs_fsops.c xfs: convert xfs_fs_cmn_err to new error logging API 2011-03-07 10:05:35 +11:00
xfs_fsops.h xfs: ensure log covering transactions are synchronous 2011-01-11 20:28:17 -06:00
xfs_ialloc_btree.c
xfs_ialloc_btree.h
xfs_ialloc.c xfs: Convert remaining cmn_err() callers to new API 2011-03-07 10:08:35 +11:00
xfs_ialloc.h
xfs_iget.c Merge branch 'master' into for-linus-merged 2011-01-10 21:35:55 -06:00
xfs_inode_item.c xfs: fix extent format buffer allocation size 2011-04-08 12:45:07 +10:00
xfs_inode_item.h
xfs_inode.c Fix common misspellings 2011-03-31 11:26:23 -03:00
xfs_inode.h Fix common misspellings 2011-03-31 11:26:23 -03:00
xfs_inum.h
xfs_iomap.c xfs: rename xfs_cmn_err_fsblock_zero() 2011-03-07 10:06:35 +11:00
xfs_iomap.h
xfs_itable.c xfs: fix variable set but not used warnings 2011-04-08 08:09:12 -05:00
xfs_itable.h
xfs_log_cil.c xfs: handle CIl transaction commit failures correctly 2011-01-28 09:05:36 -06:00
xfs_log_priv.h Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs 2011-04-11 15:48:57 -07:00
xfs_log_recover.c Fix common misspellings 2011-03-31 11:26:23 -03:00
xfs_log_recover.h
xfs_log.c xfs: convert log tail checking to a warning 2011-04-08 12:45:07 +10:00
xfs_log.h xfs: handle CIl transaction commit failures correctly 2011-01-28 09:05:36 -06:00
xfs_mount.c xfs: Convert remaining cmn_err() callers to new API 2011-03-07 10:08:35 +11:00
xfs_mount.h xfs: introduce background inode reclaim work 2011-04-08 12:45:07 +10:00
xfs_mru_cache.c xfs: convert to alloc_workqueue() 2011-02-01 11:42:43 +01:00
xfs_mru_cache.h
xfs_quota.h xfs: Convert xlog_warn to new logging interface 2011-03-07 10:01:35 +11:00
xfs_rename.c
xfs_rtalloc.c xfs: Convert remaining cmn_err() callers to new API 2011-03-07 10:08:35 +11:00
xfs_rtalloc.h xfs: Convert remaining cmn_err() callers to new API 2011-03-07 10:08:35 +11:00
xfs_rw.c xfs: Convert remaining cmn_err() callers to new API 2011-03-07 10:08:35 +11:00
xfs_rw.h
xfs_sb.h
xfs_trans_ail.c xfs: always push the AIL to the target 2011-05-09 18:35:03 -05:00
xfs_trans_buf.c xfs: xfs_trans_read_buf() should return an error on failure 2011-03-26 09:14:44 +11:00
xfs_trans_extfree.c
xfs_trans_inode.c Fix common misspellings 2011-03-31 11:26:23 -03:00
xfs_trans_priv.h xfs: push the AIL from memory reclaim and periodic sync 2011-04-08 12:45:07 +10:00
xfs_trans_space.h
xfs_trans.c xfs: handle CIl transaction commit failures correctly 2011-01-28 09:05:36 -06:00
xfs_trans.h xfs: more sensible inode refcounting for ialloc 2011-02-22 20:32:28 -06:00
xfs_types.h
xfs_utils.c
xfs_utils.h
xfs_vnodeops.c Fix common misspellings 2011-03-31 11:26:23 -03:00
xfs_vnodeops.h xfs: preallocation transactions do not need to be synchronous 2011-03-26 09:13:08 +11:00
xfs.h