3.19.8-ckt23 -stable review patch.  If anyone has any objections, please let me 
know.

---8<------------------------------------------------------------

From: Dave Chinner <dchin...@redhat.com>

commit 7d3aa7fe970791f1a674b14572a411accf2f4d4e upstream.

We don't write back stale inodes so we should skip them in
xfs_iflush_cluster, too.

Signed-off-by: Dave Chinner <dchin...@redhat.com>
Reviewed-by: Brian Foster <bfos...@redhat.com>
Reviewed-by: Christoph Hellwig <h...@lst.de>
Signed-off-by: Dave Chinner <da...@fromorbit.com>
Signed-off-by: Kamal Mostafa <ka...@canonical.com>
---
 fs/xfs/xfs_inode.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index f037fe7..5423dbe 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -2958,6 +2958,7 @@ xfs_iflush_cluster(
                 */
                spin_lock(&iq->i_flags_lock);
                if (!iq->i_ino ||
+                   __xfs_iflags_test(iq, XFS_ISTALE) ||
                    (XFS_INO_TO_AGINO(mp, iq->i_ino) & mask) != first_index) {
                        spin_unlock(&iq->i_flags_lock);
                        continue;
-- 
2.7.4

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