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linux-hardened/fs/ocfs2
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Ryan Ding c1ad1e3ca3 ocfs2: add ocfs2_write_type_t type to identify the caller of write 
Patchset: fix ocfs2 direct io code patch to support sparse file and data
ordering semantics

The idea is to use buffer io(more precisely use the interface
ocfs2_write_begin_nolock & ocfs2_write_end_nolock) to do the zero work
beyond block size.  And clear UNWRITTEN flag until direct io data has
been written to disk, which can prevent data corruption when system
crashed during direct write.

And we will also archive a better performance: eg.  dd direct write new
file with block size 4KB: before this patchset:
  2.5 MB/s
after this patchset:
  66.4 MB/s

This patch (of 8):

To support direct io in ocfs2_write_begin_nolock &
ocfs2_write_end_nolock.

Remove unused args filp & flags.  Add new arg type.  The type is one of
buffer/direct/mmap.  Indicate 3 way to perform write.  buffer/mmap type
has implemented.  direct type will be implemented later.

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: add ocfs2_write_type_t type to identify the caller of write 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.h ocfs2: add errors=continue 2015-09-04 16:54:41 -07:00
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
quota.h quota: constify qtree_fmt_operations structures 2016-01-04 10:58:35 +01:00
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
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