features/shard: Skip shards resolution if lookup on /.shard returns ENOENT

This change is done in [f]truncate, rename, unlink and readv.
Also, this patch also makes lookup in shard delete GF_CONTENT_KEY
as a workaround for the problems with read caching of sparse files
by quick-read. A proper solution would involve shard_lookup_cbk()
performing a readv, aggregating and ordering the responses and setting
it in the xdata before unwinding the response to upper translators, which
will be done in a separate patch.

Change-Id: Ie12edb9ba8c1fcea38fea0a797916cb2a98fb30c
BUG: 1223759
Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com>
Reviewed-on: http://review.gluster.org/11065
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
Tested-by: NetBSD Build System <jenkins@build.gluster.org>

0 files changed, 0 insertions, 0 deletions