ocfs2: Local mounts should skip inode updates

We don't want the extent map and uptodate cache destruction in
ocfs2_meta_lock_update() on a local mount, so skip that.

This fixes several bugs with uptodate being cleared on buffers and extent
maps being corrupted.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>

diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index e335541..31d519a 100644 (file)
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -1479,12 +1479,15 @@ static int ocfs2_meta_lock_update(struct inode *inode,
 {
        int status = 0;
        struct ocfs2_inode_info *oi = OCFS2_I(inode);
-       struct ocfs2_lock_res *lockres = NULL;
+       struct ocfs2_lock_res *lockres = &oi->ip_meta_lockres;
        struct ocfs2_dinode *fe;
        struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
 
        mlog_entry_void();
 
+       if (ocfs2_mount_local(osb))
+               goto bail;
+
        spin_lock(&oi->ip_lock);
        if (oi->ip_flags & OCFS2_INODE_DELETED) {
                mlog(0, "Orphaned inode %llu was deleted while we "
@@ -1496,22 +1499,18 @@ static int ocfs2_meta_lock_update(struct inode *inode,
        }
        spin_unlock(&oi->ip_lock);
 
-       if (!ocfs2_mount_local(osb)) {
-               lockres = &oi->ip_meta_lockres;
-
-               if (!ocfs2_should_refresh_lock_res(lockres))
-                       goto bail;
-       }
+       if (!ocfs2_should_refresh_lock_res(lockres))
+               goto bail;
 
        /* This will discard any caching information we might have had
         * for the inode metadata. */
        ocfs2_metadata_cache_purge(inode);
 
        /* will do nothing for inode types that don't use the extent
-        * map (directories, bitmap files, etc) */
+        * map (bitmap files, etc) */
        ocfs2_extent_map_trunc(inode, 0);
 
-       if (lockres && ocfs2_meta_lvb_is_trustable(inode, lockres)) {
+       if (ocfs2_meta_lvb_is_trustable(inode, lockres)) {
                mlog(0, "Trusting LVB on inode %llu\n",
                     (unsigned long long)oi->ip_blkno);
                ocfs2_refresh_inode_from_lvb(inode);
@@ -1558,8 +1557,7 @@ static int ocfs2_meta_lock_update(struct inode *inode,
 
        status = 0;
 bail_refresh:
-       if (lockres)
-               ocfs2_complete_lock_res_refresh(lockres, status);
+       ocfs2_complete_lock_res_refresh(lockres, status);
 bail:
        mlog_exit(status);
        return status;
@@ -1630,7 +1628,6 @@ int ocfs2_meta_lock_full(struct inode *inode,
                wait_event(osb->recovery_event,
                           ocfs2_node_map_is_empty(osb, &osb->recovery_map));
 
-       acquired = 0;
        lockres = &OCFS2_I(inode)->ip_meta_lockres;
        level = ex ? LKM_EXMODE : LKM_PRMODE;
        dlm_flags = 0;