1 files changed, 10 insertions, 0 deletions

diff --git a/fs/dquot.c b/fs/dquot.c
index dfba1623cccb..5ac77da19959 100644
--- a/fs/dquot.c
+++ b/fs/dquot.c
@@ -1491,6 +1491,16 @@ int vfs_quota_off(struct super_block *sb, int type, int remount)
 
         /* We need to serialize quota_off() for device */
         mutex_lock(&dqopt->dqonoff_mutex);
+
+        /*
+         * Skip everything if there's nothing to do. We have to do this because
+         * sometimes we are called when fill_super() failed and calling
+         * sync_fs() in such cases does no good.
+         */
+        if (!sb_any_quota_enabled(sb) && !sb_any_quota_suspended(sb)) {
+                mutex_unlock(&dqopt->dqonoff_mutex);
+                return 0;
+        }
         for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
                 toputinode[cnt] = NULL;
                 if (type != -1 && cnt != type)