[XFS] Fix an intermittent pquota panic caused by dodgey quota flags to an

umount dquot flush call.

SGI-PV: 946444
SGI-Modid: xfs-linux-melb:xfs-kern:24680a

Signed-off-by: Nathan Scott <nathans@sgi.com>

diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c
index c04c347..7dcdd06 100644 (file)
--- a/fs/xfs/quota/xfs_qm.c
+++ b/fs/xfs/quota/xfs_qm.c
@@ -1920,9 +1920,7 @@ xfs_qm_quotacheck(
         * at this point (because we intentionally didn't in dqget_noattach).
         */
        if (error) {
-               xfs_qm_dqpurge_all(mp,
-                                  XFS_QMOPT_UQUOTA|XFS_QMOPT_GQUOTA|
-                                  XFS_QMOPT_PQUOTA|XFS_QMOPT_QUOTAOFF);
+               xfs_qm_dqpurge_all(mp, XFS_QMOPT_QUOTALL | XFS_QMOPT_QUOTAOFF);
                goto error_return;
        }
        /*
@@ -2745,6 +2743,7 @@ xfs_qm_vop_dqattach_and_dqmod_newinode(
                xfs_dqunlock(udqp);
                ASSERT(ip->i_udquot == NULL);
                ip->i_udquot = udqp;
+               ASSERT(XFS_IS_UQUOTA_ON(tp->t_mountp));
                ASSERT(ip->i_d.di_uid == be32_to_cpu(udqp->q_core.d_id));
                xfs_trans_mod_dquot(tp, udqp, XFS_TRANS_DQ_ICOUNT, 1);
        }
@@ -2754,7 +2753,10 @@ xfs_qm_vop_dqattach_and_dqmod_newinode(
                xfs_dqunlock(gdqp);
                ASSERT(ip->i_gdquot == NULL);
                ip->i_gdquot = gdqp;
-               ASSERT(ip->i_d.di_gid == be32_to_cpu(gdqp->q_core.d_id));
+               ASSERT(XFS_IS_OQUOTA_ON(tp->t_mountp));
+               ASSERT((XFS_IS_GQUOTA_ON(tp->t_mountp) ?
+                       ip->i_d.di_gid : ip->i_d.di_projid) ==
+                               be32_to_cpu(gdqp->q_core.d_id));
                xfs_trans_mod_dquot(tp, gdqp, XFS_TRANS_DQ_ICOUNT, 1);
        }
 }

diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index f975489..6088e14 100644 (file)
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -1077,8 +1077,7 @@ xfs_unmountfs(xfs_mount_t *mp, struct cred *cr)
 
        xfs_iflush_all(mp);
 
-       XFS_QM_DQPURGEALL(mp,
-               XFS_QMOPT_UQUOTA | XFS_QMOPT_GQUOTA | XFS_QMOPT_UMOUNTING);
+       XFS_QM_DQPURGEALL(mp, XFS_QMOPT_QUOTALL | XFS_QMOPT_UMOUNTING);
 
        /*
         * Flush out the log synchronously so that we know for sure