ocfs2: Fix Q_GETNEXTQUOTA for filesystem without quotas
When Q_GETNEXTQUOTA was called for filesystem with quotas disabled
ocfs2_get_next_id() oopses. Fix the problem by checking early whether
the filesystem has quotas enabled.
Signed-off-by: Jan Kara <jack@suse.cz>
diff --git a/fs/ocfs2/quota_global.c b/fs/ocfs2/quota_global.c
index 3892f3c..ab6a6cd 100644
--- a/fs/ocfs2/quota_global.c
+++ b/fs/ocfs2/quota_global.c
@@ -867,6 +867,10 @@
int status = 0;
trace_ocfs2_get_next_id(from_kqid(&init_user_ns, *qid), type);
+ if (!sb_has_quota_loaded(sb, type)) {
+ status = -ESRCH;
+ goto out;
+ }
status = ocfs2_lock_global_qf(info, 0);
if (status < 0)
goto out;
@@ -878,8 +882,11 @@
out_global:
ocfs2_unlock_global_qf(info, 0);
out:
- /* Avoid logging ENOENT since it just means there isn't next ID */
- if (status && status != -ENOENT)
+ /*
+ * Avoid logging ENOENT since it just means there isn't next ID and
+ * ESRCH which means quota isn't enabled for the filesystem.
+ */
+ if (status && status != -ENOENT && status != -ESRCH)
mlog_errno(status);
return status;
}