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authorTao Ma <tao.ma@oracle.com>2009-02-25 04:40:26 +0300
committerMark Fasheh <mfasheh@suse.com>2009-02-26 22:51:11 +0300
commitc8b9cf9a7cd25ba65166116d0a958f0bc709f0a7 (patch)
tree81ab9d6d0be93e57bcb17130abed3516574b3752 /fs/ocfs2/ocfs2.h
parent89a907afe073b8971a83d0ad54f391542b64d327 (diff)
downloadlinux-c8b9cf9a7cd25ba65166116d0a958f0bc709f0a7.tar.xz
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.h3
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)