quota: add supprt for gfs2

gfs2 uses the same generic quota interface as xfs and it has the same base
block/quota block size ratio and seems to work nice with the xfs quota module.

(People using gfs should be aware that quota reporting is lagging quite a bit
on gfs.  If you copy a file on a gfs volume the quota values are being updated
with a delay of 30s here with kernel 3.5. This reporting can lead to data
corruption if a client thinks he can write but actually he suddently can't.)
(cherry picked from commit 0b57d1c07520f4995412f224945324fef29f5989)

Fix bug #9172 - quota on gfs2 being reported wrong.
(cherry picked from commit 16a3b6e02d1bb8345984ab6a8c81e446d8de2f54)
(cherry picked from commit bea45125fc10d0eef02c5cedb5585f70eebe9450)

diff --git a/source3/lib/sysquotas.c b/source3/lib/sysquotas.c
index 3d4697c7dc49c2ae61cb7dc49a54577474da904b..6682a807275354e7dcf1e32bd4fc8062615a2013 100644 (file)
--- a/source3/lib/sysquotas.c
+++ b/source3/lib/sysquotas.c
@@ -176,6 +176,8 @@ static struct {
 } sys_quota_backends[] = {
 #ifdef HAVE_XFS_QUOTAS
        {"xfs", sys_get_xfs_quota,      sys_set_xfs_quota},
+       {"gfs", sys_get_xfs_quota,      sys_set_xfs_quota},
+       {"gfs2", sys_get_xfs_quota,     sys_set_xfs_quota},
 #endif /* HAVE_XFS_QUOTAS */
        {NULL,  NULL,                   NULL}
 };