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| author | Yiwen Jiang <jiangyiwen@huawei.com> | 2015-09-05 00:44:25 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-09-05 01:54:41 +0200 |
| commit | 928dda1f9433f024ac48c3d97ae683bf83dd0e42 (patch) | |
| tree | 7a37ba09ba3363eecf2bba5939c29a029bf605fc /fs/attr.c | |
| parent | ocfs2: add ip_alloc_sem in direct IO to protect allocation changes (diff) | |
| download | linux-928dda1f9433f024ac48c3d97ae683bf83dd0e42.tar.xz linux-928dda1f9433f024ac48c3d97ae683bf83dd0e42.zip | |
ocfs2: fix a tiny case that inode can not removed
When running dirop_fileop_racer we found a case that inode
can not removed.
Two nodes, say Node A and Node B, mount the same ocfs2 volume. Create
two dirs /race/1/ and /race/2/ in the filesystem.
Node A Node B
rm -r /race/2/
mv /race/1/ /race/2/
call ocfs2_unlink(), get
the EX mode of /race/2/
wait for B unlock /race/2/
decrease i_nlink of /race/2/ to 0,
and add inode of /race/2/ into
orphan dir, unlock /race/2/
got EX mode of /race/2/. because
/race/1/ is dir, so inc i_nlink
of /race/2/ and update into disk,
unlock /race/2/
because i_nlink of /race/2/
is not zero, this inode will
always remain in orphan dir
This patch fixes this case by test whether i_nlink of new dir is zero.
Signed-off-by: Yiwen Jiang <jiangyiwen@huawei.com>
Reviewed-by: Mark Fasheh <mfasheh@suse.de>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Joseph Qi <joseph.qi@huawei.com>
Cc: Xue jiufei <xuejiufei@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/attr.c')
0 files changed, 0 insertions, 0 deletions