diff options
| author | Joseph Qi <joseph.qi@huawei.com> | 2015-09-04 15:44:40 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-09-04 16:54:41 -0700 |
| commit | ad694821224634d46b6571f0161e85ac2e397396 (patch) | |
| tree | 0aba23e4b8889402d1d1c1e96a62e790574c96ec /fs/ocfs2/journal.c | |
| parent | f57a22ddecd6f26040a67e2c12880f98f88b6e00 (diff) | |
ocfs2: fix race between crashed dio and rm
There is a race case between crashed dio and rm, which will lead to
OCFS2_VALID_FL not set read-only.
N1 N2
------------------------------------------------------------------------
dd with direct flag
rm file
crashed with an dio entry left
in orphan dir
clear OCFS2_VALID_FL in
ocfs2_remove_inode
recover N1 and read the corrupted inode,
and set filesystem read-only
So we skip the inode deletion this time and wait for dio entry recovered
first.
Signed-off-by: Joseph Qi <joseph.qi@huawei.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>
Diffstat (limited to 'fs/ocfs2/journal.c')
| -rw-r--r-- | fs/ocfs2/journal.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c index 3bfd36a23e40..52948af646b6 100644 --- a/fs/ocfs2/journal.c +++ b/fs/ocfs2/journal.c @@ -2210,7 +2210,9 @@ static int ocfs2_recover_orphans(struct ocfs2_super *osb, * ocfs2_delete_inode. */ oi->ip_flags |= OCFS2_INODE_MAYBE_ORPHANED; spin_unlock(&oi->ip_lock); - } else if ((orphan_reco_type == ORPHAN_NEED_TRUNCATE) && + } + + if ((orphan_reco_type == ORPHAN_NEED_TRUNCATE) && (di->i_flags & cpu_to_le32(OCFS2_DIO_ORPHANED_FL))) { ret = ocfs2_truncate_file(inode, di_bh, i_size_read(inode)); |