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46e6255659
linux/fs/ocfs2
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Ryan Ding 46e6255659 ocfs2: do not change i_size in write_end for direct io 
To support direct io in ocfs2_write_begin_nolock & ocfs2_write_end_nolock.

Append direct io do not change i_size in get block phase.  It only move
to orphan when starting write.  After data is written to disk, it will
delete itself from orphan and update i_size.  So skip i_size change
section in write_begin for direct io.

And when there is no extents alloc, no meta data changes needed for
direct io (since write_begin start trans for 2 reason: alloc extents &
change i_size.  Now none of them needed).  So we can skip start trans
procedure.

Signed-off-by: Ryan Ding <ryan.ding@oracle.com>
Reviewed-by: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Joseph Qi <joseph.qi@huawei.com>
Cc: 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>
2016-03-25 16:37:42 -07:00
..
cluster ocfs2: o2hb: fix double free bug 2016-03-25 16:37:42 -07:00
dlm ocfs2/dlm: fix a variable overflow problem in dlmdomain.c 2016-03-15 16:55:16 -07:00
dlmfs kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
acl.c ocfs2: take inode lock in ocfs2_iop_set/get_acl() 2015-09-04 16:54:41 -07:00
acl.h ocfs2: use generic posix ACL infrastructure 2014-01-25 23:58:21 -05:00
alloc.c wrappers for ->i_mutex access 2016-01-22 18:04:28 -05:00
alloc.h ocfs2: constify ocfs2_extent_tree_operations structures 2016-01-14 16:00:49 -08:00
aops.c ocfs2: do not change i_size in write_end for direct io 2016-03-25 16:37:42 -07:00
aops.h ocfs2: add ocfs2_write_type_t type to identify the caller of write 2016-03-25 16:37:42 -07:00
blockcheck.c
blockcheck.h
buffer_head_io.c ocfs2: clear the rest of the buffers on error 2015-09-04 16:54:41 -07:00
buffer_head_io.h
dcache.c VFS: normal filesystems (and lustre): d_inode() annotations 2015-04-15 15:06:57 -04:00
dcache.h ocfs2: revert iput deferring code in ocfs2_drop_dentry_lock 2014-04-03 16:20:55 -07:00
dir.c wrappers for ->i_mutex access 2016-01-22 18:04:28 -05:00
dir.h VFS: normal filesystems (and lustre): d_inode() annotations 2015-04-15 15:06:57 -04:00
dlmglue.c ocfs2: NFS hangs in __ocfs2_cluster_lock due to race with ocfs2_unblock_lock 2016-01-21 17:20:51 -08:00
dlmglue.h ocfs2: avoid blocking in ocfs2_mark_lockres_freeing() in downconvert thread 2014-04-03 16:20:55 -07:00
export.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-04-26 17:22:07 -07:00
export.h
extent_map.c ocfs2: neaten do_error, ocfs2_error and ocfs2_abort 2015-09-04 16:54:41 -07:00
extent_map.h
file.c wrappers for ->i_mutex access 2016-01-22 18:04:28 -05:00
file.h ocfs2: prepare some interfaces used in append direct io 2015-02-16 17:56:04 -08:00
filecheck.c ocfs2: sysfile interfaces for online file check 2016-03-22 15:36:02 -07:00
filecheck.h ocfs2: sysfile interfaces for online file check 2016-03-22 15:36:02 -07:00
heartbeat.c
heartbeat.h
inode.c ocfs2: check/fix inode block for online file check 2016-03-22 15:36:02 -07:00
inode.h ocfs2: sysfile interfaces for online file check 2016-03-22 15:36:02 -07:00
ioctl.c wrappers for ->i_mutex access 2016-01-22 18:04:28 -05:00
ioctl.h
journal.c wrappers for ->i_mutex access 2016-01-22 18:04:28 -05:00
journal.h ocfs2: add functions to add and remove inode in orphan dir 2015-02-16 17:56:04 -08:00
Kconfig
localalloc.c wrappers for ->i_mutex access 2016-01-22 18:04:28 -05:00
localalloc.h ocfs2: free allocated clusters if error occurs after ocfs2_claim_clusters 2014-02-06 13:48:51 -08:00
locks.c ocfs2: fix flock panic issue 2015-12-29 17:45:49 -08:00
locks.h
Makefile ocfs2: sysfile interfaces for online file check 2016-03-22 15:36:02 -07:00
mmap.c ocfs2: add ocfs2_write_type_t type to identify the caller of write 2016-03-25 16:37:42 -07:00
mmap.h
move_extents.c wrappers for ->i_mutex access 2016-01-22 18:04:28 -05:00
move_extents.h
namei.c wrappers for ->i_mutex access 2016-01-22 18:04:28 -05:00
namei.h ocfs2: do not include dio entry in case of orphan scan 2015-11-05 19:34:48 -08:00
ocfs1_fs_compat.h
ocfs2_fs.h treewide: fix typos in comment blocks 2015-08-07 14:46:24 +02:00
ocfs2_ioctl.h
ocfs2_lockid.h
ocfs2_lockingver.h
ocfs2_trace.h ocfs2: check/fix inode block for online file check 2016-03-22 15:36:02 -07:00
ocfs2.h ocfs2: add errors=continue 2015-09-04 16:54:41 -07:00
quota_global.c ocfs2: Implement get_next_id() 2016-02-09 13:05:23 +01:00
quota_local.c ocfs2: neaten do_error, ocfs2_error and ocfs2_abort 2015-09-04 16:54:41 -07:00
quota.h quota: constify qtree_fmt_operations structures 2016-01-04 10:58:35 +01:00
refcounttree.c wrappers for ->i_mutex access 2016-01-22 18:04:28 -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: make resv_lock spinlock static 2015-02-10 14:30:29 -08:00
reservations.h
resize.c wrappers for ->i_mutex access 2016-01-22 18:04:28 -05:00
resize.h
slot_map.c ocfs2: fix slot overwritten if storage link down during mount 2016-01-14 16:00:49 -08:00
slot_map.h
stack_o2cb.c ocfs2: avoid a pointless delay in o2cb_cluster_check() 2015-04-14 16:48:57 -07:00
stack_user.c char: make misc_deregister a void function 2015-08-05 10:35:49 -07:00
stackglue.c ocfs2: export ocfs2_kset for online file check 2016-03-22 15:36:02 -07:00
stackglue.h ocfs2: export ocfs2_kset for online file check 2016-03-22 15:36:02 -07:00
suballoc.c wrappers for ->i_mutex access 2016-01-22 18:04:28 -05:00
suballoc.h ocfs2: rollback alloc_dinode counts when ocfs2_block_group_set_bits() failed 2014-04-03 16:20:56 -07:00
super.c ocfs2: create/remove sysfile for online file check 2016-03-22 15:36:02 -07:00
super.h ocfs2: neaten do_error, ocfs2_error and ocfs2_abort 2015-09-04 16:54:41 -07:00
symlink.c switch ->get_link() to delayed_call, kill ->put_link() 2015-12-30 13:01:03 -05:00
symlink.h
sysfile.c ocfs2: avoid system inode ref confusion by adding mutex lock 2014-04-03 16:20:57 -07:00
sysfile.h
uptodate.c ocfs2: remove NULL assignments on static 2014-06-04 16:53:53 -07:00
uptodate.h
xattr.c wrappers for ->i_mutex access 2016-01-22 18:04:28 -05:00
xattr.h ocfs2: use generic posix ACL infrastructure 2014-01-25 23:58:21 -05:00