Darrick J. Wong 2931cdcb49 ocfs2: improve fsync efficiency and fix deadlock between aio_write and sync_file ... Currently, ocfs2_sync_file grabs i_mutex and forces the current journal transaction to complete. This isn't terribly efficient, since sync_file really only needs to wait for the last transaction involving that inode to complete, and this doesn't require i_mutex. Therefore, implement the necessary bits to track the newest tid associated with an inode, and teach sync_file to wait for that instead of waiting for everything in the journal to commit. Furthermore, only issue the flush request to the drive if jbd2 hasn't already done so. This also eliminates the deadlock between ocfs2_file_aio_write() and ocfs2_sync_file(). aio_write takes i_mutex then calls ocfs2_aiodio_wait() to wait for unaligned dio writes to finish. However, if that dio completion involves calling fsync, then we can get into trouble when some ocfs2_sync_file tries to take i_mutex. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Mark Fasheh <mfasheh@suse.de> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2014-04-03 16:20:53 -07:00
..
cluster	Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block	2014-01-30 11:19:05 -08:00
dlm	ocfs2: fix null pointer dereference when access dlm_state before launching dlm thread	2014-04-03 16:20:53 -07:00
dlmfs	ocfs2: remove versioning information	2014-01-21 16:19:41 -08:00
acl.c	ocfs2: use generic posix ACL infrastructure	2014-01-25 23:58:21 -05:00
acl.h	ocfs2: use generic posix ACL infrastructure	2014-01-25 23:58:21 -05:00
alloc.c	ocfs2: improve fsync efficiency and fix deadlock between aio_write and sync_file	2014-04-03 16:20:53 -07:00
alloc.h	ocfs2: Add ocfs2_trim_fs for SSD trim support.	2011-05-23 23:37:18 -07:00
aops.c	ocfs2: improve fsync efficiency and fix deadlock between aio_write and sync_file	2014-04-03 16:20:53 -07:00
aops.h	ocfs2: change ip_unaligned_aio to of type mutex from atomit_t	2014-04-03 16:20:53 -07:00
blockcheck.c	ocfs2: kill endianness abuses in blockcheck.c	2012-05-29 23:28:35 -04:00
blockcheck.h
buffer_head_io.c	ocfs2: return ENOMEM when sb_getblk() fails	2013-11-13 12:09:00 +09:00
buffer_head_io.h
dcache.c	ocfs2: needs ->d_lock to poke in ->d_parent->d_inode from ->d_revalidate()	2013-09-29 22:02:20 -04:00
dcache.h
dir.c	ocfs2: improve fsync efficiency and fix deadlock between aio_write and sync_file	2014-04-03 16:20:53 -07:00
dir.h	[readdir] convert ocfs2	2013-06-29 12:57:02 +04:00
dlmglue.c	ocfs2: pass ocfs2_cluster_connection to ocfs2_this_node	2014-01-21 16:19:41 -08:00
dlmglue.h
export.c	fs: encode_fh: return FILEID_INVALID if invalid fid_type	2013-02-26 02:46:10 -05:00
export.h
extent_map.c	ocfs2: fix the end cluster offset of FIEMAP	2013-09-11 15:56:53 -07:00
extent_map.h	ocfs2: Implement llseek()	2011-07-25 14:58:15 -07:00
file.c	ocfs2: improve fsync efficiency and fix deadlock between aio_write and sync_file	2014-04-03 16:20:53 -07:00
file.h	->permission() sanitizing: don't pass flags to ->permission()	2011-07-20 01:43:24 -04:00
heartbeat.c	ocfs2: Remove mlog(0) from fs/ocfs2/heartbeat.c	2011-02-23 21:17:39 +08:00
heartbeat.h
inode.c	ocfs2: improve fsync efficiency and fix deadlock between aio_write and sync_file	2014-04-03 16:20:53 -07:00
inode.h	ocfs2: improve fsync efficiency and fix deadlock between aio_write and sync_file	2014-04-03 16:20:53 -07:00
ioctl.c	ocfs2: adjust minlen with discard_granularity in the FITRIM ioctl	2014-01-21 16:19:42 -08:00
ioctl.h
journal.c	ocfs2: use i_size_read() to access i_size	2013-09-11 15:56:30 -07:00
journal.h	ocfs2: improve fsync efficiency and fix deadlock between aio_write and sync_file	2014-04-03 16:20:53 -07:00
Kconfig
localalloc.c	ocfs2: free allocated clusters if error occurs after ocfs2_claim_clusters	2014-02-06 13:48:51 -08:00
localalloc.h	ocfs2: free allocated clusters if error occurs after ocfs2_claim_clusters	2014-02-06 13:48:51 -08:00
locks.c
locks.h
Makefile	ocfs2: remove versioning information	2014-01-21 16:19:41 -08:00
mmap.c	kill f_vfsmnt	2013-02-26 02:46:10 -05:00
mmap.h
move_extents.c	ocfs2: remove redundant ocfs2_alloc_dinode_update_counts() and ocfs2_block_group_set_bits()	2014-01-21 16:19:42 -08:00
move_extents.h	Ocfs2/move_extents: move/defrag extents within a certain range.	2011-05-25 15:17:12 +08:00
namei.c	ocfs2: improve fsync efficiency and fix deadlock between aio_write and sync_file	2014-04-03 16:20:53 -07:00
namei.h
ocfs1_fs_compat.h
ocfs2.h	ocfs2: add clustername to cluster connection	2014-01-21 16:19:41 -08:00
ocfs2_fs.h	Revert wrong fixes for common misspellings	2011-04-26 23:31:11 -07:00
ocfs2_ioctl.h	Ocfs2/move_extents: Adding new ioctl code 'OCFS2_IOC_MOVE_EXT' to ocfs2.	2011-05-25 15:17:08 +08:00
ocfs2_lockid.h
ocfs2_lockingver.h
ocfs2_trace.h	ocfs2: lighten up allocate transaction	2013-09-11 15:56:28 -07:00
quota.h
quota_global.c	ocfs2: fix quota file corruption	2014-03-04 07:55:48 -08:00
quota_local.c	ocfs2: fix quota file corruption	2014-03-04 07:55:48 -08:00
refcounttree.c	ocfs2: use generic posix ACL infrastructure	2014-01-25 23:58:21 -05:00
refcounttree.h	ocfs2: fix NULL pointer dereference in ocfs2_duplicate_clusters_by_page	2013-08-13 17:57:49 -07:00
reservations.c	ocfs2: Remove masklog ML_RESERVATIONS.	2011-02-23 22:10:56 +08:00
reservations.h	Fix common misspellings	2011-03-31 11:26:23 -03:00
resize.c	ocfs2: do not call brelse() if group_bh is not initialized in ocfs2_group_add()	2013-11-13 12:09:01 +09:00
resize.h
slot_map.c	ocfs2: Clean up messages in the fs	2011-07-24 10:34:54 -07:00
slot_map.h
stack_o2cb.c	ocfs2: pass ocfs2_cluster_connection to ocfs2_this_node	2014-01-21 16:19:41 -08:00
stack_user.c	ocfs2: fix sparse non static symbol warning	2014-01-21 16:19:42 -08:00
stackglue.c	ocfs2: check if cluster name exists before deref	2014-03-28 13:56:58 -07:00
stackglue.h	ocfs2: pass ocfs2_cluster_connection to ocfs2_this_node	2014-01-21 16:19:41 -08:00
suballoc.c	ocfs2: remove redundant ocfs2_alloc_dinode_update_counts() and ocfs2_block_group_set_bits()	2014-01-21 16:19:42 -08:00
suballoc.h	ocfs2: remove redundant ocfs2_alloc_dinode_update_counts() and ocfs2_block_group_set_bits()	2014-01-21 16:19:42 -08:00
super.c	ocfs2: improve fsync efficiency and fix deadlock between aio_write and sync_file	2014-04-03 16:20:53 -07:00
super.h	treewide: use __printf not __attribute__((format(printf,...)))	2011-10-31 17:30:54 -07:00
symlink.c	ocfs2: Fix oops in ocfs2_fast_symlink_readpage() code path	2013-02-26 02:46:12 -05:00
symlink.h	ocfs: simplify symlink handling	2012-05-29 23:28:40 -04:00
sysfile.c	ocfs2: remove kfree() redundant null checks	2013-02-21 17:22:19 -08:00
sysfile.h
uptodate.c	ocfs2: Remove masklog ML_UPTODATE.	2011-02-24 16:22:20 +08:00
uptodate.h
xattr.c	ocfs2: use generic posix ACL infrastructure	2014-01-25 23:58:21 -05:00
xattr.h	ocfs2: use generic posix ACL infrastructure	2014-01-25 23:58:21 -05:00