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| author | Tao Ma <tao.ma@oracle.com> | 2009-02-24 17:40:26 -0800 |
|---|---|---|
| committer | Mark Fasheh <mfasheh@suse.com> | 2009-02-26 11:51:11 -0800 |
| commit | c8b9cf9a7cd25ba65166116d0a958f0bc709f0a7 (patch) | |
| tree | 81ab9d6d0be93e57bcb17130abed3516574b3752 /fs/ocfs2/ocfs2.h | |
| parent | 89a907afe073b8971a83d0ad54f391542b64d327 (diff) | |
| download | lwn-c8b9cf9a7cd25ba65166116d0a958f0bc709f0a7.tar.gz lwn-c8b9cf9a7cd25ba65166116d0a958f0bc709f0a7.zip | |
ocfs2: lock the metaecc process for xattr bucket
For other metadata in ocfs2, metaecc is checked in ocfs2_read_blocks
with io_mutex held. While for xattr bucket, it is calculated by
the whole buckets. So we have to add a spin_lock to prevent multiple
processes calculating metaecc.
Signed-off-by: Tao Ma <tao.ma@oracle.com>
Tested-by: Tristan Ye <tristan.ye@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Diffstat (limited to 'fs/ocfs2/ocfs2.h')
| -rw-r--r-- | fs/ocfs2/ocfs2.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h index 077384135f4e..946d3c34b90b 100644 --- a/fs/ocfs2/ocfs2.h +++ b/fs/ocfs2/ocfs2.h @@ -341,6 +341,9 @@ struct ocfs2_super struct ocfs2_node_map osb_recovering_orphan_dirs; unsigned int *osb_orphan_wipes; wait_queue_head_t osb_wipe_event; + + /* used to protect metaecc calculation check of xattr. */ + spinlock_t osb_xattr_lock; }; #define OCFS2_SB(sb) ((struct ocfs2_super *)(sb)->s_fs_info) |