afr: some coverity fixes

Note: This is a backport of http://review.gluster.org/14895.
It contains:
i) fixes that prevent deadlocks (afr-common.c).
ii) fixes over-writing op-errno=ENOMEM with possible other values
(afr-inode-read.c).
iii) prevents doing further operations with a NULL dictionary if
allocation fails (afr-self-heal-data.c).
iv) prevents falsely marking a sink as healed if metadata heal fails
midway(afr-self-heal-metadata.c).
v) other minor fixes.

Considering the above are not trivial fixes, the patch is a good
candidate for merging in 3.8 branch.

Thanks to Krutika for a cleaner way to track inode refs in
afr_set_split_brain_choice().

Change-Id: I2d968d05b815ad764b7e3f8aa9ad95a792b3c1df
BUG: 1360556
Signed-off-by: Ravishankar N <ravishankar@redhat.com>
Reviewed-on: http://review.gluster.org/15018
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com>
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>

0 files changed, 0 insertions, 0 deletions