xfs: send warning of project quota to userspace via netlink

Linux's quota subsystem has an ability to handle project quota. This
commit just utilizes the ability from xfs side.  dbus-monitor and
quota_nld shipped as part of quota-tools can be used for testing.
See the patch posting on the XFS list for details on testing.

Signed-off-by: Masatake YAMATO <yamato@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

1 files changed, 9 insertions, 5 deletions

diff --git a/fs/xfs/xfs_trans_dquot.c b/fs/xfs/xfs_trans_dquot.c
index ce78534a047e..995170194df0 100644
--- a/fs/xfs/xfs_trans_dquot.c
+++ b/fs/xfs/xfs_trans_dquot.c
@@ -572,12 +572,16 @@ xfs_quota_warn(
         struct xfs_dquot        *dqp,
         int                     type)
 {
-        /* no warnings for project quotas - we just return ENOSPC later */
+        enum quota_type qtype;
+
         if (dqp->dq_flags & XFS_DQ_PROJ)
-                return;
-        quota_send_warning(make_kqid(&init_user_ns,
-                                     (dqp->dq_flags & XFS_DQ_USER) ?
-                                     USRQUOTA : GRPQUOTA,
+                qtype = PRJQUOTA;
+        else if (dqp->dq_flags & XFS_DQ_USER)
+                qtype = USRQUOTA;
+        else
+                qtype = GRPQUOTA;
+
+        quota_send_warning(make_kqid(&init_user_ns, qtype,
                                      be32_to_cpu(dqp->q_core.d_id)),
                            mp->m_super->s_dev, type);
 }