[XFS] Reduce stack use during quota mounts (caused a panic). This

regressed recently via the fix for inherited quota inode attributes.

SGI-PV: 947312
SGI-Modid: xfs-linux-melb:xfs-kern:25318a

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 53a00fb..7c0e39d 100644 (file)
--- a/fs/xfs/quota/xfs_qm.c
+++ b/fs/xfs/quota/xfs_qm.c
@@ -68,6 +68,9 @@ kmem_zone_t   *qm_dqzone;
 kmem_zone_t    *qm_dqtrxzone;
 STATIC kmem_shaker_t   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 *);
 
@@ -1393,8 +1396,6 @@ xfs_qm_qino_alloc(
        xfs_trans_t     *tp;
        int             error;
        unsigned long   s;
-       cred_t          zerocr;
-       xfs_inode_t     zeroino;
        int             committed;
 
        tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QINOCREATE);
@@ -1406,11 +1407,9 @@ xfs_qm_qino_alloc(
                xfs_trans_cancel(tp, 0);
                return error;
        }
-       memset(&zerocr, 0, sizeof(zerocr));
-       memset(&zeroino, 0, sizeof(zeroino));
 
-       if ((error = xfs_dir_ialloc(&tp, &zeroino, S_IFREG, 1, 0,
-                                  &zerocr, 0, 1, ip, &committed))) {
+       if ((error = xfs_dir_ialloc(&tp, &xfs_zeroino, S_IFREG, 1, 0,
+                                  &xfs_zerocr, 0, 1, ip, &committed))) {
                xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES |
                                 XFS_TRANS_ABORT);
                return error;