1 files changed, 28 insertions, 2 deletions

diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index d1236d6f4045..b4d971b01588 100644
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -501,7 +501,7 @@ xfs_reserve_blocks(
         if (inval == (__uint64_t *)NULL) {
                 outval->resblks = mp->m_resblks;
                 outval->resblks_avail = mp->m_resblks_avail;
-                return(0);
+                return 0;
         }
 
         request = *inval;
@@ -537,7 +537,33 @@ xfs_reserve_blocks(
         outval->resblks = mp->m_resblks;
         outval->resblks_avail = mp->m_resblks_avail;
         XFS_SB_UNLOCK(mp, s);
-        return(0);
+        return 0;
+}
+
+void
+xfs_fs_log_dummy(xfs_mount_t *mp)
+{
+        xfs_trans_t *tp;
+        xfs_inode_t *ip;
+
+
+        tp = _xfs_trans_alloc(mp, XFS_TRANS_DUMMY1);
+        atomic_inc(&mp->m_active_trans);
+        if (xfs_trans_reserve(tp, 0, XFS_ICHANGE_LOG_RES(mp), 0, 0, 0)) {
+                xfs_trans_cancel(tp, 0);
+                return;
+        }
+
+        ip = mp->m_rootip;
+        xfs_ilock(ip, XFS_ILOCK_EXCL);
+
+        xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+        xfs_trans_ihold(tp, ip);
+        xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+        xfs_trans_set_sync(tp);
+        xfs_trans_commit(tp, 0, NULL);
+
+        xfs_iunlock(ip, XFS_ILOCK_EXCL);
 }
 
 int