[XFS] Invalidate quotacheck when mounting without a quota type.

When quotas are mounted or remounted without a particular quota type the
quota accounting for that type becomes invalid. Previously we were
ignoring this leading to accounting errors.

SGI-PV: 961964
SGI-Modid: xfs-linux-melb:xfs-kern:28225a

Signed-off-by: Donald Douwsma <donaldd@sgi.com>
Signed-off-by: Utako Kusaka <utako@tnes.nec.co.jp>
Signed-off-by: Vlad Apostolov <vapo@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c
index 762af2d1b50f..3e4a8ad8a34c 100644
--- a/fs/xfs/quota/xfs_qm.c
+++ b/fs/xfs/quota/xfs_qm.c
@@ -388,6 +388,17 @@ xfs_qm_mount_quotas(
                         return XFS_ERROR(error);
                 }
         }
+        /* 
+         * If one type of quotas is off, then it will lose its
+         * quotachecked status, since we won't be doing accounting for
+         * that type anymore.
+         */
+        if (!XFS_IS_UQUOTA_ON(mp)) {
+                mp->m_qflags &= ~XFS_UQUOTA_CHKD;
+        }
+        if (!(XFS_IS_GQUOTA_ON(mp) || XFS_IS_PQUOTA_ON(mp))) {
+                mp->m_qflags &= ~XFS_OQUOTA_CHKD;
+        }
 
  write_changes:
         /*