[XFS] Avoid using inodes that haven't been completely initialised

The radix tree walks in xfs_sync_inodes_ag and xfs_qm_dqrele_all_inodes()
can find inodes that are still undergoing initialisation. Avoid
them by checking for the the XFS_INEW() flag once we have a reference
on the inode. This flag is cleared once the inode is properly initialised.

SGI-PV: 987246

Signed-off-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/fs/xfs/linux-2.6/xfs_sync.c b/fs/xfs/linux-2.6/xfs_sync.c
index fb5cca3df840..d12d31b86fa0 100644
--- a/fs/xfs/linux-2.6/xfs_sync.c
+++ b/fs/xfs/linux-2.6/xfs_sync.c
@@ -117,8 +117,9 @@ xfs_sync_inodes_ag(
                 }
                 read_unlock(&pag->pag_ici_lock);
 
-                /* bad inodes are dealt with elsewhere */
-                if (is_bad_inode(inode)) {
+                /* avoid new or bad inodes */
+                if (is_bad_inode(inode) ||
+                    xfs_iflags_test(ip, XFS_INEW)) {
                         IRELE(ip);
                         continue;
                 }