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Mark Fasheh 18d585f0f2 ocfs2: make append_dio an incompat feature 
It turns out that making this feature ro_compat isn't quite enough to
prevent accidental corruption on mount from older kernels.  Ocfs2 (like
other file systems) will process orphaned inodes even when the user mounts
in 'ro' mode.  So for the case of a filesystem not knowing the append_dio
feature, mounting the filesystem could result in orphaned-for-dio files
being deleted, which we clearly don't want.

So instead, turn this into an incompat flag.

Btw, this is kind of my fault - initially I asked that we add a flag to
cover the feature and even suggested that we use an ro flag.  It wasn't
until I was looking through our commits for v4.0-rc1 that I realized we
actually want this to be incompat.

Signed-off-by: Mark Fasheh <mfasheh@suse.de>
Cc: Joseph Qi <joseph.qi@huawei.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2015-03-12 18:46:07 -07:00
..
cluster ocfs2: o2net: silence uninitialized variable warning 2015-02-10 14:30:29 -08:00
dlm o2dlm: fix NULL pointer dereference in o2dlm_blocking_ast_wrapper 2015-02-10 14:30:30 -08:00
dlmfs fs: remove mapping->backing_dev_info 2015-01-20 14:03:05 -07:00
Kconfig
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Makefile ocfs2: remove versioning information 2014-01-21 16:19:41 -08:00
acl.c ocfs2: remove unnecessary else in ocfs2_set_acl() 2015-02-10 14:30:28 -08:00
acl.h ocfs2: use generic posix ACL infrastructure 2014-01-25 23:58:21 -05:00
alloc.c ocfs2: fix journal commit deadlock in ocfs2_convert_inline_data_to_extents 2015-02-10 14:30:29 -08:00
alloc.h ocfs2: reflink: fix slow unlink for refcounted file 2014-12-18 19:08:11 -08:00
aops.c ocfs2: allocate blocks in ocfs2_direct_IO_get_blocks 2015-02-16 17:56:05 -08:00
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
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buffer_head_io.c ocfs2: do not put bh when buffer_uptodate failed 2014-04-03 16:20:56 -07:00
buffer_head_io.h
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dcache.c assorted conversions to %p[dD] 2014-11-19 13:01:20 -05:00
dcache.h ocfs2: revert iput deferring code in ocfs2_drop_dentry_lock 2014-04-03 16:20:55 -07:00
dir.c ocfs2: removes mlog_errno() call twice in ocfs2_find_dir_space_el() 2015-02-10 14:30:29 -08:00
dir.h [readdir] convert ocfs2 2013-06-29 12:57:02 +04:00
dlmglue.c ocfs2: prune the dcache before deleting the dentry of directory 2015-02-10 14:30:30 -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 fs: encode_fh: return FILEID_INVALID if invalid fid_type 2013-02-26 02:46:10 -05:00
export.h
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extent_map.c ocfs2: fix the end cluster offset of FIEMAP 2013-09-11 15:56:53 -07:00
extent_map.h
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file.c ocfs2: set append dio as a ro compat feature 2015-02-16 17:56:05 -08:00
file.h ocfs2: prepare some interfaces used in append direct io 2015-02-16 17:56:04 -08:00
heartbeat.c
…
heartbeat.h
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inode.c ocfs2: add functions to add and remove inode in orphan dir 2015-02-16 17:56:04 -08:00
inode.h ocfs2: wait for orphan recovery first once append O_DIRECT write crash 2015-02-16 17:56:05 -08:00
ioctl.c ocfs2: do not write error flag to user structure we cannot copy from/to 2014-08-29 16:28:16 -07:00
ioctl.h
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journal.c ocfs2: wait for orphan recovery first once append O_DIRECT write crash 2015-02-16 17:56:05 -08:00
journal.h ocfs2: add functions to add and remove inode in orphan dir 2015-02-16 17:56:04 -08:00
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 ocfs2: flock: drop cross-node lock when failed locally 2014-04-03 16:20:56 -07:00
locks.h
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mmap.c mm: drop vm_ops->remap_pages and generic_file_remap_pages() stub 2015-02-10 14:30:30 -08:00
mmap.h
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move_extents.c ocfs2: remove bogus NULL check in ocfs2_move_extents() 2014-12-10 17:41:04 -08:00
move_extents.h
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namei.c ocfs2: wait for orphan recovery first once append O_DIRECT write crash 2015-02-16 17:56:05 -08:00
namei.h ocfs2: add functions to add and remove inode in orphan dir 2015-02-16 17:56:04 -08:00
ocfs1_fs_compat.h
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ocfs2.h ocfs2: make append_dio an incompat feature 2015-03-12 18:46:07 -07:00
ocfs2_fs.h ocfs2: make append_dio an incompat feature 2015-03-12 18:46:07 -07:00
ocfs2_ioctl.h
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ocfs2_lockid.h
…
ocfs2_lockingver.h
…
ocfs2_trace.h ocfs2: fix a tiny race when running dirop_fileop_racer 2014-06-23 16:47:45 -07:00
quota.h ocfs2: Move OLQF_CLEAN flag out of generic quota flags 2015-01-21 19:21:30 +01:00
quota_global.c ocfs2: Don't use MAXQUOTAS value 2014-09-17 11:59:12 +02:00
quota_local.c Merge branch 'akpm' (patches from Andrew) 2015-02-10 16:45:56 -08:00
refcounttree.c ocfs2: remove pointless assignment from ocfs2_calc_refcount_meta_credits() 2015-02-10 14:30:29 -08:00
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
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resize.c ocfs2: fix incorrect i_size of global bitmap inode after resize 2014-06-04 16:53:54 -07:00
resize.h
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slot_map.c ocfs2: fix an off-by-one BUG_ON() statement 2014-12-10 17:41:03 -08:00
slot_map.h
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stack_o2cb.c ocfs2: pass ocfs2_cluster_connection to ocfs2_this_node 2014-01-21 16:19:41 -08:00
stack_user.c fs/ocfs2/stack_user.c: fix typo in ocfs2_control_release() 2014-10-09 22:25:46 -04:00
stackglue.c ocfs2: remove NULL assignments on static 2014-06-04 16:53:53 -07:00
stackglue.h ocfs2: pass ocfs2_cluster_connection to ocfs2_this_node 2014-01-21 16:19:41 -08:00
suballoc.c ocfs2: iput inode alloc when failed locally 2014-04-03 16:20:57 -07:00
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: wait for orphan recovery first once append O_DIRECT write crash 2015-02-16 17:56:05 -08:00
super.h
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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: avoid system inode ref confusion by adding mutex lock 2014-04-03 16:20:57 -07:00
sysfile.h
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uptodate.c ocfs2: remove NULL assignments on static 2014-06-04 16:53:53 -07:00
uptodate.h
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xattr.c ocfs2: xattr: remove unused function 2015-02-10 14:30:29 -08:00
xattr.h ocfs2: use generic posix ACL infrastructure 2014-01-25 23:58:21 -05:00