features/shard: Add "is-directory" checks in stat/fstat

        Backport of: http://review.gluster.org/10427

During mount, NFS directly calls stat on the root of the volume
without sending a lookup on it. This was causing inode_ctx_get_block_size()
to fail on /. A check is now added in [f]stat which would ensure no action
is taken by shard xlator when the operation is on a directory.

Change-Id: I8645b7fe58b2d44b5f527d50c1c7102de44acc00
BUG: 1214247
Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com>
Reviewed-on: http://review.gluster.org/10509
Tested-by: NetBSD Build System
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>

0 files changed, 0 insertions, 0 deletions