[XFS] Quota inode has no parent.

Avoid using a special "zero inode" as the parent of the quota inode as
this can confuse the filestreams code into thinking the quota inode has a
parent. We do not want the quota inode to follow filestreams allocation
rules, so pass a NULL as the parent inode and detect this condition when
doing stream associations.

SGI-PV: 964469
SGI-Modid: xfs-linux-melb:xfs-kern:29098a

Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c
index eeb3d9cc0e8e..7def4c699343 100644
--- a/fs/xfs/quota/xfs_qm.c
+++ b/fs/xfs/quota/xfs_qm.c
@@ -65,7 +65,6 @@ kmem_zone_t	*qm_dqtrxzone;
 static struct shrinker *xfs_qm_shaker;
 
 static cred_t   xfs_zerocr;
-static xfs_inode_t      xfs_zeroino;
 
 STATIC void     xfs_qm_list_init(xfs_dqlist_t *, char *, int);
 STATIC void     xfs_qm_list_destroy(xfs_dqlist_t *);
@@ -1415,7 +1414,7 @@ xfs_qm_qino_alloc(
                 return error;
         }
 
-        if ((error = xfs_dir_ialloc(&tp, &xfs_zeroino, S_IFREG, 1, 0,
+        if ((error = xfs_dir_ialloc(&tp, NULL, S_IFREG, 1, 0,
                                    &xfs_zerocr, 0, 1, ip, &committed))) {
                 xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES |
                                  XFS_TRANS_ABORT);