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authorSunil Mushran <sunil.mushran@oracle.com>2009-06-20 01:53:18 +0200
committerJoel Becker <joel.becker@oracle.com>2009-06-22 23:24:53 +0200
commit3211949f8998dde71d9fe2e063de045ece5e0473 (patch)
tree3aed155421642a6e04c94e0c5c521dea54e0b029 /fs/ocfs2/dlmglue.c
parentocfs2: Stop orphan scan as early as possible during umount (diff)
downloadlinux-3211949f8998dde71d9fe2e063de045ece5e0473.tar.xz
linux-3211949f8998dde71d9fe2e063de045ece5e0473.zip
ocfs2: Do not initialize lvb in ocfs2_orphan_scan_lock_res_init()
We don't access the LVB in our ocfs2_*_lock_res_init() functions. Since the LVB can become invalid during some cluster recovery operations, the dlmglue must be able to handle an uninitialized LVB. For the orphan scan lock, we initialized an uninitialzed LVB with our scan sequence number plus one. This starts a normal orphan scan cycle. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
Diffstat (limited to 'fs/ocfs2/dlmglue.c')
-rw-r--r--fs/ocfs2/dlmglue.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index 83d2ddb27186..d3d1f9372f7e 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -644,14 +644,10 @@ static void ocfs2_nfs_sync_lock_res_init(struct ocfs2_lock_res *res,
static void ocfs2_orphan_scan_lock_res_init(struct ocfs2_lock_res *res,
struct ocfs2_super *osb)
{
- struct ocfs2_orphan_scan_lvb *lvb;
-
ocfs2_lock_res_init_once(res);
ocfs2_build_lock_name(OCFS2_LOCK_TYPE_ORPHAN_SCAN, 0, 0, res->l_name);
ocfs2_lock_res_init_common(osb, res, OCFS2_LOCK_TYPE_ORPHAN_SCAN,
&ocfs2_orphan_scan_lops, osb);
- lvb = ocfs2_dlm_lvb(&res->l_lksb);
- lvb->lvb_version = OCFS2_ORPHAN_LVB_VERSION;
}
void ocfs2_file_lock_res_init(struct ocfs2_lock_res *lockres,
@@ -2386,6 +2382,9 @@ int ocfs2_orphan_scan_lock(struct ocfs2_super *osb, u32 *seqno, int ex)
if (ocfs2_dlm_lvb_valid(&lockres->l_lksb) &&
lvb->lvb_version == OCFS2_ORPHAN_LVB_VERSION)
*seqno = be32_to_cpu(lvb->lvb_os_seqno);
+ else
+ *seqno = osb->osb_orphan_scan.os_seqno + 1;
+
return status;
}