ocfs2: Disable orphan scanning for local and hard-ro mounts

Local and Hard-RO mounts do not need orphan scanning.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>

1 files changed, 16 insertions, 10 deletions

diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index d3d1f9372f7e..1841bbb49cb6 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -2366,15 +2366,20 @@ void ocfs2_inode_unlock(struct inode *inode,
         mlog_exit_void();
 }
 
-int ocfs2_orphan_scan_lock(struct ocfs2_super *osb, u32 *seqno, int ex)
+int ocfs2_orphan_scan_lock(struct ocfs2_super *osb, u32 *seqno)
 {
         struct ocfs2_lock_res *lockres;
         struct ocfs2_orphan_scan_lvb *lvb;
-        int level = ex ? DLM_LOCK_EX : DLM_LOCK_PR;
         int status = 0;
 
+        if (ocfs2_is_hard_readonly(osb))
+                return -EROFS;
+
+        if (ocfs2_mount_local(osb))
+                return 0;
+
         lockres = &osb->osb_orphan_scan.os_lockres;
-        status = ocfs2_cluster_lock(osb, lockres, level, 0, 0);
+        status = ocfs2_cluster_lock(osb, lockres, DLM_LOCK_EX, 0, 0);
         if (status < 0)
                 return status;
 
@@ -2388,17 +2393,18 @@ int ocfs2_orphan_scan_lock(struct ocfs2_super *osb, u32 *seqno, int ex)
         return status;
 }
 
-void ocfs2_orphan_scan_unlock(struct ocfs2_super *osb, u32 seqno, int ex)
+void ocfs2_orphan_scan_unlock(struct ocfs2_super *osb, u32 seqno)
 {
         struct ocfs2_lock_res *lockres;
         struct ocfs2_orphan_scan_lvb *lvb;
-        int level = ex ? DLM_LOCK_EX : DLM_LOCK_PR;
 
-        lockres = &osb->osb_orphan_scan.os_lockres;
-        lvb = ocfs2_dlm_lvb(&lockres->l_lksb);
-        lvb->lvb_version = OCFS2_ORPHAN_LVB_VERSION;
-        lvb->lvb_os_seqno = cpu_to_be32(seqno);
-        ocfs2_cluster_unlock(osb, lockres, level);
+        if (!ocfs2_is_hard_readonly(osb) && !ocfs2_mount_local(osb)) {
+                lockres = &osb->osb_orphan_scan.os_lockres;
+                lvb = ocfs2_dlm_lvb(&lockres->l_lksb);
+                lvb->lvb_version = OCFS2_ORPHAN_LVB_VERSION;
+                lvb->lvb_os_seqno = cpu_to_be32(seqno);
+                ocfs2_cluster_unlock(osb, lockres, DLM_LOCK_EX);
+        }
 }
 
 int ocfs2_super_lock(struct ocfs2_super *osb,