features/locks: Add lk-owner checks in entrylk

        Backport of http://review.gluster.com/9125

Problem:
entry self-heal in 3.6 and above, takes full lock on the directory only for the
duration of figuring out the xattrs of the directories where as 3.5 takes locks
through out the entry-self-heal. If the cluster is heterogeneous then there is
a chance that 3.6 self-heal is triggered and then 3.5 self-heal will also
triggered and both the self-heal daemons of 3.5 and 3.6 do self-heal.

Fix in 3.6.2 and above:
3.6.2 and above gets an entry lock on a very long name before entry self-heal
begins so that 3.5 entry self-heal will not get locks until 3.6.x entry
self-heal completes. Make 3.5 locks accept nested locks from same lk-owner,
client.

BUG: 1177339
Change-Id: I65d4c3732d1e074720422533f85f6e13f933ecad
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/9352
Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Niels de Vos <ndevos@redhat.com>

0 files changed, 0 insertions, 0 deletions