features/changelog: Change barrier notification mechanism

Backport of http://review.gluster.org/#/c/14272/

The barrier notification mechanism was fd based and 'select'
was being used. 'select' breaks when number of fds opened
by brick process exceeds 1024. To avoid this and also
the maintainance of pipe between notify and 'changelog_rollover',
the pipe has been replaced with pthread condition signal
and timed wait mechanism.

> Change-Id: I530ea90d9a06953f8b23b4e12d122872ee1925de
> BUG: 1334314
> Signed-off-by: Kotresh HR <khiremat@redhat.com>
> Reviewed-on: http://review.gluster.org/14272
(cherry picked from commit be00012e7be55d25870411f3e975db9a8e19c70a)

Change-Id: I530ea90d9a06953f8b23b4e12d122872ee1925de
BUG: 1342083
Signed-off-by: Kotresh HR <khiremat@redhat.com>
Reviewed-on: http://review.gluster.org/14614
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Niels de Vos <ndevos@redhat.com>
Smoke: Gluster Build System <jenkins@build.gluster.com>

0 files changed, 0 insertions, 0 deletions