David Chinner 641c56fbfe [XFS] Prevent deadlock when flushing inodes on unmount ... When we are unmounting the filesystem, we flush all the inodes to disk. Unfortunately, if we have an inode cluster that has just been freed and marked stale sitting in an incore log buffer (i.e. hasn't been flushed to disk), it will be holding all the flush locks on the inodes in that cluster. xfs_iflush_all() which is called during unmount walks all the inodes trying to reclaim them, and it doing so calls xfs_finish_reclaim() on each inode. If the inode is dirty, if grabs the flush lock and flushes it. Unfortunately, find dirty inodes that already have their flush lock held and so we sleep. At this point in the unmount process, we are running single-threaded. There is nothing more that can push on the log to force the transaction holding the inode flush locks to disk and hence we deadlock. The fix is to issue a log force before flushing the inodes on unmount so that all the flush locks will be released before we start flushing the inodes. SGI-PV: 964538 SGI-Modid: xfs-linux-melb:xfs-kern:28862a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>		2007-07-14 15:33:38 +10:00
..
linux-2.6	[XFS] Map unwritten extents correctly for I/o completion processing	2007-07-14 15:32:49 +10:00
quota	[XFS] Use generic shrinker interfaces in XFS.	2007-07-14 15:23:53 +10:00
support	[XFS] reducing the number of random number functions.	2007-05-08 13:49:03 +10:00
Kbuild	…
Kconfig	…
Makefile	…
Makefile-linux-2.6	…
xfs.h	…
xfs_acl.c	[XFS] Remove unused header files for MAC and CAP checking functionality.	2007-02-10 18:37:28 +11:00
xfs_acl.h	…
xfs_ag.h	[XFS] Lazy Superblock Counters	2007-07-14 15:28:50 +10:00
xfs_alloc.c	[XFS] Lazy Superblock Counters	2007-07-14 15:28:50 +10:00
xfs_alloc.h	[XFS] Lazy Superblock Counters	2007-07-14 15:28:50 +10:00
xfs_alloc_btree.c	[XFS] Lazy Superblock Counters	2007-07-14 15:28:50 +10:00
xfs_alloc_btree.h	[XFS] Remove unused arguments from the XFS_BTREE_*_ADDR macros.	2007-02-10 18:37:33 +11:00
xfs_arch.h	…
xfs_attr.c	[XFS] The last argument "lsn" of xfs_trans_commit() is always called with	2007-05-08 13:48:42 +10:00
xfs_attr.h	…
xfs_attr_leaf.c	[XFS] The last argument "lsn" of xfs_trans_commit() is always called with	2007-05-08 13:48:42 +10:00
xfs_attr_leaf.h	…
xfs_attr_sf.h	…
xfs_behavior.c	…
xfs_behavior.h	…
xfs_bit.c	[XFS] Keep stack usage down for 4k stacks by using noinline.	2007-02-10 18:34:56 +11:00
xfs_bit.h	…
xfs_bmap.c	[XFS] xfs_bmapi fails to update the previous extent pointer	2007-07-14 15:29:37 +10:00
xfs_bmap.h	[XFS] Remove unused argument to xfs_bmap_finish	2007-02-10 18:37:16 +11:00
xfs_bmap_btree.c	[XFS] Remove a bunch of unused functions from XFS.	2007-02-10 18:37:40 +11:00
xfs_bmap_btree.h	[XFS] Remove a bunch of unused functions from XFS.	2007-02-10 18:37:40 +11:00
xfs_btree.c	…
xfs_btree.h	[XFS] Remove unused arguments from the XFS_BTREE_*_ADDR macros.	2007-02-10 18:37:33 +11:00
xfs_buf_item.c	[XFS] Keep stack usage down for 4k stacks by using noinline.	2007-02-10 18:34:56 +11:00
xfs_buf_item.h	[XFS] Get rid of old 5.3/6.1 v1 log items. Cleanup patch sent in by Eric	2007-02-10 18:35:02 +11:00
xfs_clnt.h	…
xfs_da_btree.c	[XFS] Remove a bunch of unused functions from XFS.	2007-02-10 18:37:40 +11:00
xfs_da_btree.h	[XFS] Remove a bunch of unused functions from XFS.	2007-02-10 18:37:40 +11:00
xfs_dfrag.c	[XFS] propogate return codes from flush routines	2007-05-08 13:49:27 +10:00
xfs_dfrag.h	…
xfs_dinode.h	…
xfs_dir2.c	[XFS] rename uio_read() to xfs_uio_read()	2006-11-11 18:04:41 +11:00
xfs_dir2.h	…
xfs_dir2_block.c	[XFS] the "aendp" arg to xfs_dir2_data_freescan is always NULL, remove it.	2007-05-08 13:48:49 +10:00
xfs_dir2_block.h	…
xfs_dir2_data.c	[XFS] the "aendp" arg to xfs_dir2_data_freescan is always NULL, remove it.	2007-05-08 13:48:49 +10:00
xfs_dir2_data.h	[XFS] the "aendp" arg to xfs_dir2_data_freescan is always NULL, remove it.	2007-05-08 13:48:49 +10:00
xfs_dir2_leaf.c	[XFS] the "aendp" arg to xfs_dir2_data_freescan is always NULL, remove it.	2007-05-08 13:48:49 +10:00
xfs_dir2_leaf.h	…
xfs_dir2_node.c	[XFS] the "aendp" arg to xfs_dir2_data_freescan is always NULL, remove it.	2007-05-08 13:48:49 +10:00
xfs_dir2_node.h	…
xfs_dir2_sf.c	…
xfs_dir2_sf.h	…
xfs_dir2_trace.c	…
xfs_dir2_trace.h	…
xfs_dmapi.h	[XFS] Remove KERNEL_VERSION macros from xfs_dmapi.h	2006-11-11 18:05:06 +11:00
xfs_dmops.c	…
xfs_error.c	[XFS] reducing the number of random number functions.	2007-05-08 13:49:03 +10:00
xfs_error.h	[XFS] Remove a bunch of unused functions from XFS.	2007-02-10 18:37:40 +11:00
xfs_extfree_item.c	[XFS] Keep stack usage down for 4k stacks by using noinline.	2007-02-10 18:34:56 +11:00
xfs_extfree_item.h	…
xfs_fs.h	[XFS] Lazy Superblock Counters	2007-07-14 15:28:50 +10:00
xfs_fsops.c	[XFS] Log the agf_length change in xfs_growfs_data_private().	2007-07-14 15:32:59 +10:00
xfs_fsops.h	…
xfs_ialloc.c	[XFS] Lazy Superblock Counters	2007-07-14 15:28:50 +10:00
xfs_ialloc.h	[XFS] Lazy Superblock Counters	2007-07-14 15:28:50 +10:00
xfs_ialloc_btree.c	…
xfs_ialloc_btree.h	[XFS] Remove unused arguments from the XFS_BTREE_*_ADDR macros.	2007-02-10 18:37:33 +11:00
xfs_iget.c	[XFS] Add lockdep support for XFS	2007-05-08 13:50:19 +10:00
xfs_imap.h	…
xfs_inode.c	[XFS] Fix to prevent the notorious 'NULL files' problem after a crash.	2007-05-08 13:49:46 +10:00
xfs_inode.h	[XFS] Add lockdep support for XFS	2007-05-08 13:50:19 +10:00
xfs_inode_item.c	[XFS] Keep stack usage down for 4k stacks by using noinline.	2007-02-10 18:34:56 +11:00
xfs_inode_item.h	…
xfs_inum.h	…
xfs_iocore.c	[XFS] Fix to prevent the notorious 'NULL files' problem after a crash.	2007-05-08 13:49:46 +10:00
xfs_iomap.c	[XFS] Fix to prevent the notorious 'NULL files' problem after a crash.	2007-05-08 13:49:46 +10:00
xfs_iomap.h	[XFS] Fix to prevent the notorious 'NULL files' problem after a crash.	2007-05-08 13:49:46 +10:00
xfs_itable.c	Fix occurrences of "the the "	2007-05-09 08:57:56 +02:00
xfs_itable.h	…
xfs_log.c	[XFS] Lazy Superblock Counters	2007-07-14 15:28:50 +10:00
xfs_log.h	…
xfs_log_priv.h	…
xfs_log_recover.c	[XFS] Lazy Superblock Counters	2007-07-14 15:28:50 +10:00
xfs_log_recover.h	…
xfs_mount.c	[XFS] Prevent deadlock when flushing inodes on unmount	2007-07-14 15:33:38 +10:00
xfs_mount.h	[XFS] Lazy Superblock Counters	2007-07-14 15:28:50 +10:00
xfs_qmops.c	[XFS] The last argument "lsn" of xfs_trans_commit() is always called with	2007-05-08 13:48:42 +10:00
xfs_quota.h	[XFS] Fix uquota and oquota enforcement problems.	2007-05-08 13:49:33 +10:00
xfs_refcache.h	…
xfs_rename.c	[XFS] The last argument "lsn" of xfs_trans_commit() is always called with	2007-05-08 13:48:42 +10:00
xfs_rtalloc.c	[XFS] Don't grow filesystems past the size they can index.	2007-07-14 15:21:29 +10:00
xfs_rtalloc.h	[XFS] Remove a bunch of unused functions from XFS.	2007-02-10 18:37:40 +11:00
xfs_rw.c	[XFS] The last argument "lsn" of xfs_trans_commit() is always called with	2007-05-08 13:48:42 +10:00
xfs_rw.h	[XFS] Make hole punching at EOF atomic.	2007-07-14 15:23:40 +10:00
xfs_sb.h	[XFS] Lazy Superblock Counters	2007-07-14 15:28:50 +10:00
xfs_trans.c	[XFS] Apply transaction delta counts atomically to incore counters	2007-07-14 15:32:09 +10:00
xfs_trans.h	[XFS] Lazy Superblock Counters	2007-07-14 15:28:50 +10:00
xfs_trans_ail.c	[XFS] Workaround log space issue by increasing XFS_TRANS_PUSH_AIL_RESTARTS	2007-02-10 18:35:52 +11:00
xfs_trans_buf.c	…
xfs_trans_extfree.c	…
xfs_trans_inode.c	…
xfs_trans_item.c	…
xfs_trans_priv.h	…
xfs_trans_space.h	…
xfs_types.h	…
xfs_utils.c	[XFS] propogate return codes from flush routines	2007-05-08 13:49:27 +10:00
xfs_utils.h	…
xfs_vfsops.c	[XFS] Lazy Superblock Counters	2007-07-14 15:28:50 +10:00
xfs_vnodeops.c	[XFS] Make hole punching at EOF atomic.	2007-07-14 15:23:40 +10:00