features/locks: Fix statedump code

RCA:
Taking blocking mutex/spin locks lead to dead locks
because of the locking order in statedumps. Also we
were asked to remove gf_logs if possible to avoid extra
cost in signal handlers.

Fix:
changed blocking mutes/spin locks to their non-blocking variants.
Removed gf_logs in locks xlator statedump code-path.

Tests:
State-dump success cases are working fine.
Triggered try-lock failures by putting statedumps in a while loop.
In parallel did chown of the same file in a while loop.

BUG: 843781
Change-Id: Iac9b75d79cd5e036cd3eafc1e106074e2c6b5c47
Signed-off-by: Pranith Kumar K <pranithk@gluster.com>
Reviewed-on: http://review.gluster.com/3752
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>

0 files changed, 0 insertions, 0 deletions