afr: thin-arbiter lock release fixes

- pass fop state instead of afr local to
afr_ta_dom_lock_check_and_release()

- avoid afr_lock_release_synctask() being called simultaneosuly from
notify code path and transaction (post-op) code path due to races.

- Check if the post-op on TA is valid based on event_gen checks.

- Invalidate in-memory information when we get TA child down.

Note: Thi patch addresses some pending review comments of commit
053b1309dc8fbc05fcde5223e734da9f694cf5cc
(https://review.gluster.org/#/c/glusterfs/+/20095/)

fixes: bz#1709130
Change-Id: I2ccd7e1b53362f9f3fed8680aecb23b5011eb18c
Signed-off-by: Ravishankar N <ravishankar@redhat.com>
(cherry picked from commit 9ab2747da78061882f6734df4b265bce11adaef1)

0 files changed, 0 insertions, 0 deletions