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Christoph Hellwig be4f1ac828 xfs: log all dirty inodes in xfs_fs_sync_fs 
Since Linux 2.6.36 the writeback code has introduces various measures for
live lock prevention during sync().  Unfortunately some of these are
actively harmful for the XFS model, where the inode gets marked dirty for
metadata from the data I/O handler.

The older_than_this checks that are now more strictly enforced since

    writeback: avoid livelocking WB_SYNC_ALL writeback

by only calling into __writeback_inodes_sb and thus only sampling the
current cut off time once.  But on a slow enough devices the previous
asynchronous sync pass might not have fully completed yet, and thus XFS
might mark metadata dirty only after that sampling of the cut off time for
the blocking pass already happened.  I have not myself reproduced this
myself on a real system, but by introducing artificial delay into the
XFS I/O completion workqueues it can be reproduced easily.

Fix this by iterating over all XFS inodes in ->sync_fs and log all that
are dirty.  This might log inode that only got redirtied after the
previous pass, but given how cheap delayed logging of inodes is it
isn't a major concern for performance.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Tested-by: Mark Tinguely <tinguely@sgi.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
 		2011-12-23 16:41:47 -06:00
..
Kconfig quota: Make QUOTACTL config be selected by its users 2010-10-05 12:16:37 +02:00
Makefile xfs: fix tracing builds inside the source tree 2011-08-22 16:37:24 -05:00
kmem.c xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
kmem.h Merge branch 'master' into for-next 2011-09-15 15:08:18 +02:00
mrlock.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
time.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
uuid.c xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
uuid.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs.h xfs: don't expect xfs headers to be in subdirectories 2011-08-12 13:57:55 -05:00
xfs_acl.c xfs: validate acl count 2011-11-28 22:14:24 -06:00
xfs_acl.h xfs: Fix build breakage in xfs_iops.c when CONFIG_FS_POSIX_ACL is not set 2011-08-01 02:35:04 -04:00
xfs_ag.h xfs: Remove the macro XFS_BUF_PTR 2011-07-25 15:03:13 -05:00
xfs_alloc.c xfs: remove XFS_BUF_SET_VTYPE and XFS_BUF_SET_VTYPE_REF 2011-10-11 21:15:09 -05:00
xfs_alloc.h xfs: do not discard alloc btree blocks 2011-05-24 11:17:22 -05:00
xfs_alloc_btree.c xfs: remove leftovers of the old btree tracing code 2011-07-13 13:43:50 +02:00
xfs_alloc_btree.h
…
xfs_aops.c xfs: fix force shutdown handling in xfs_end_io 2011-11-08 10:48:23 -06:00
xfs_aops.h xfs: remove i_iocount 2011-10-11 21:15:01 -05:00
xfs_attr.c xfs: remove buffers from the delwri list in xfs_buf_stale 2011-10-11 21:15:10 -05:00
xfs_attr.h
…
xfs_attr_leaf.c xfs: fix attr2 vs large data fork assert 2011-11-29 13:03:12 -06:00
xfs_attr_leaf.h
…
xfs_attr_sf.h
…
xfs_bit.c
…
xfs_bit.h
…
xfs_bmap.c xfs: fix allocation length overflow in xfs_bmapi_write() 2011-12-02 16:24:02 -06:00
xfs_bmap.h xfs: cleanup xfs_bmap.h 2011-10-11 21:15:07 -05:00
xfs_bmap_btree.c xfs: remove leftovers of the old btree tracing code 2011-07-13 13:43:50 +02:00
xfs_bmap_btree.h
…
xfs_btree.c xfs: remove XFS_BUF_SET_VTYPE and XFS_BUF_SET_VTYPE_REF 2011-10-11 21:15:09 -05:00
xfs_btree.h xfs: Remove the macro XFS_BUF_PTR 2011-07-25 15:03:13 -05:00
xfs_buf.c xfs: do not flush data workqueues in xfs_flush_buftarg 2011-10-11 22:34:31 -05:00
xfs_buf.h xfs: remove XFS_bflush 2011-10-11 21:15:11 -05:00
xfs_buf_item.c xfs: constify xfs_item_ops 2011-11-08 10:48:23 -06:00
xfs_buf_item.h xfs: use struct list_head for the buf cancel table 2010-12-16 16:05:22 -06:00
xfs_da_btree.c xfs: remove XFS_BUF_SET_VTYPE and XFS_BUF_SET_VTYPE_REF 2011-10-11 21:15:09 -05:00
xfs_da_btree.h xfs: remove the dead XFS_DABUF_DEBUG code 2011-07-13 13:43:50 +02:00
xfs_dfrag.c xfs: simplify xfs_trans_ijoin* again 2011-10-11 21:15:08 -05:00
xfs_dfrag.h
…
xfs_dinode.h xfs: Remove the macro XFS_BUF_PTR 2011-07-25 15:03:13 -05:00
xfs_dir2.c xfs: get rid of open-coded S_ISREG(), etc. 2011-07-26 15:05:16 -04:00
xfs_dir2.h xfs: reshuffle dir2 headers 2011-07-13 13:43:48 +02:00
xfs_dir2_block.c xfs: reshuffle dir2 headers 2011-07-13 13:43:48 +02:00
xfs_dir2_data.c xfs: reshuffle dir2 headers 2011-07-13 13:43:48 +02:00
xfs_dir2_format.h xfs: cleanup struct xfs_dir2_free 2011-07-13 13:43:48 +02:00
xfs_dir2_leaf.c xfs: introduce xfs_bmapi_read() 2011-10-11 21:15:03 -05:00
xfs_dir2_node.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-07-25 13:56:39 -07:00
xfs_dir2_priv.h xfs: reshuffle dir2 headers 2011-07-13 13:43:48 +02:00
xfs_dir2_sf.c xfs: reshuffle dir2 headers 2011-07-13 13:43:48 +02:00
xfs_discard.c xfs: fix possible overflow in xfs_ioc_trim() 2011-10-11 21:15:07 -05:00
xfs_discard.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_dquot.c xfs: remove XFS_BUF_SET_VTYPE and XFS_BUF_SET_VTYPE_REF 2011-10-11 21:15:09 -05:00
xfs_dquot.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_dquot_item.c xfs: constify xfs_item_ops 2011-11-08 10:48:23 -06:00
xfs_dquot_item.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
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_export.c xfs: fix nfs export of 64-bit inodes numbers on 32-bit kernels 2011-12-06 10:46:23 -06:00
xfs_export.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_extfree_item.c xfs: constify xfs_item_ops 2011-11-08 10:48:23 -06:00
xfs_extfree_item.h xfs: Pull EFI/EFD handling out from under the AIL lock 2010-12-20 11:59:49 +11:00
xfs_file.c xfs: optimize fsync on directories 2011-10-11 21:15:09 -05:00
xfs_filestream.c xfs: rename allocation range fields in struct xfs_bmalloca 2011-10-11 21:15:06 -05:00
xfs_filestream.h xfs: clean up filestreams helpers 2010-07-26 13:16:51 -05:00
xfs_fs.h xfs: consolidate & clarify mount sanity checks 2011-07-08 11:32:51 -05:00
xfs_fs_subr.c xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_fsops.c xfs: Check the return value of xfs_buf_get() 2011-10-11 21:15:01 -05:00
xfs_fsops.h xfs: ensure log covering transactions are synchronous 2011-01-11 20:28:17 -06:00
xfs_globals.c xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_ialloc.c xfs: remove XFS_BUF_SET_VTYPE and XFS_BUF_SET_VTYPE_REF 2011-10-11 21:15:09 -05:00
xfs_ialloc.h
…
xfs_ialloc_btree.c xfs: remove leftovers of the old btree tracing code 2011-07-13 13:43:50 +02:00
xfs_ialloc_btree.h
…
xfs_iget.c xfs: remove i_iocount 2011-10-11 21:15:01 -05:00
xfs_inode.c xfs: force buffer writeback before blocking on the ilock in inode reclaim 2011-11-29 12:06:14 -06:00
xfs_inode.h xfs: force buffer writeback before blocking on the ilock in inode reclaim 2011-11-29 12:06:14 -06:00
xfs_inode_item.c xfs: constify xfs_item_ops 2011-11-08 10:48:23 -06:00
xfs_inode_item.h
…
xfs_inum.h xfs: cleanup shortform directory inode number handling 2011-07-08 14:35:03 +02:00
xfs_ioctl.c xfs: simplify xfs_trans_ijoin* again 2011-10-11 21:15:08 -05:00
xfs_ioctl.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_ioctl32.c xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_ioctl32.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_iomap.c xfs: simplify xfs_trans_ijoin* again 2011-10-11 21:15:08 -05:00
xfs_iomap.h xfs: kill xfs_iomap 2010-12-16 16:05:51 -06:00
xfs_iops.c filesystems: add set_nlink() 2011-11-02 12:53:43 +01:00
xfs_iops.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_itable.c xfs: fix variable set but not used warnings 2011-04-08 08:09:12 -05:00
xfs_itable.h
…
xfs_linux.h xfs: revert to using a kthread for AIL pushing 2011-10-11 11:02:49 -05:00
xfs_log.c xfs: fix the logspace waiting algorithm 2011-12-06 14:19:47 -06:00
xfs_log.h xfs: constify xfs_item_ops 2011-11-08 10:48:23 -06:00
xfs_log_cil.c xfs: add online discard support 2011-05-24 11:17:13 -05:00
xfs_log_priv.h xfs: exact busy extent tracking 2011-04-28 13:18:04 -05:00
xfs_log_recover.c xfs: remove XFS_bflush 2011-10-11 21:15:11 -05:00
xfs_log_recover.h
…
xfs_message.c xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_message.h treewide: use __printf not __attribute__((format(printf,...))) 2011-10-31 17:30:54 -07:00
xfs_mount.c xfs: remove XFS_bflush 2011-10-11 21:15:11 -05:00
xfs_mount.h xfs: Remove the second parameter to xfs_sb_count() 2011-07-20 18:35:03 -05:00
xfs_mru_cache.c xfs: convert to alloc_workqueue() 2011-02-01 11:42:43 +01:00
xfs_mru_cache.h
…
xfs_qm.c xfs: use doalloc flag in xfs_qm_dqattach_one() 2011-11-15 14:45:09 -06:00
xfs_qm.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_qm_bhv.c xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_qm_stats.c xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_qm_stats.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_qm_syscalls.c xfs: simplify xfs_trans_ijoin* again 2011-10-11 21:15:08 -05:00
xfs_quota.h xfs: Convert xlog_warn to new logging interface 2011-03-07 10:01:35 +11:00
xfs_quota_priv.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_quotaops.c xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_rename.c xfs: simplify xfs_trans_ijoin* again 2011-10-11 21:15:08 -05:00
xfs_rtalloc.c xfs: simplify xfs_trans_ijoin* again 2011-10-11 21:15:08 -05:00
xfs_rtalloc.h xfs: Remove the macro XFS_BUF_PTR 2011-07-25 15:03:13 -05:00
xfs_rw.c xfs: clean up xfs_ioerror_alert 2011-10-11 21:15:10 -05:00
xfs_rw.h xfs: clean up xfs_ioerror_alert 2011-10-11 21:15:10 -05:00
xfs_sb.h xfs: Remove the macro XFS_BUF_PTR 2011-07-25 15:03:13 -05:00
xfs_stats.c xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_stats.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_super.c xfs: log all dirty inodes in xfs_fs_sync_fs 2011-12-23 16:41:47 -06:00
xfs_super.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_sync.c xfs: log all dirty inodes in xfs_fs_sync_fs 2011-12-23 16:41:47 -06:00
xfs_sync.h xfs: log all dirty inodes in xfs_fs_sync_fs 2011-12-23 16:41:47 -06:00
xfs_sysctl.c xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_sysctl.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_trace.c xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_trace.h xfs: fix the logspace waiting algorithm 2011-12-06 14:19:47 -06:00
xfs_trans.c xfs: simplify xfs_trans_ijoin* again 2011-10-11 21:15:08 -05:00
xfs_trans.h xfs: constify xfs_item_ops 2011-11-08 10:48:23 -06:00
xfs_trans_ail.c xfs: add AIL pushing tracepoints 2011-10-18 15:12:04 -05:00
xfs_trans_buf.c xfs: clean up xfs_ioerror_alert 2011-10-11 21:15:10 -05:00
xfs_trans_dquot.c xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_trans_extfree.c xfs: Pull EFI/EFD handling out from under the AIL lock 2010-12-20 11:59:49 +11:00
xfs_trans_inode.c xfs: simplify xfs_trans_ijoin* again 2011-10-11 21:15:08 -05:00
xfs_trans_priv.h Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux 2011-10-17 15:42:02 -05:00
xfs_trans_space.h
…
xfs_types.h xfs: exact busy extent tracking 2011-04-28 13:18:04 -05:00
xfs_utils.c xfs: remove xfs_cred.h 2010-10-18 15:08:06 -05:00
xfs_utils.h xfs: remove xfs_cred.h 2010-10-18 15:08:06 -05:00
xfs_vnode.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_vnodeops.c xfs: Fix possible memory corruption in xfs_readlink 2011-11-08 10:48:23 -06:00
xfs_vnodeops.h xfs: split xfs_setattr 2011-07-08 14:34:23 +02:00
xfs_xattr.c xfs: remove subdirectories 2011-08-12 16:21:35 -05:00