glusterfsd: fix to return actual exit status on mount process

Problem:
Currently, we always exit mount process with the pid as the exit number
which is return value of the waitpid(), it is not the exit value of the
child process

Solution:
Extract the actual exit code/status in case if the child terminated normally,
that is, by calling exit(3) or _exit(2), or by returning from main()

Backport of:
> Change-Id: Iefec6e27b5a5a98a22f016e49967978853662e37
> BUG: 1331042
> Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
> Reviewed-on: http://review.gluster.org/14094
> Tested-by: Prasanna Kumar Kalever <pkalever@redhat.com>
> Smoke: Gluster Build System <jenkins@build.gluster.com>
> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
> CentOS-regression: Gluster Build System <jenkins@build.gluster.com>
> Reviewed-by: Raghavendra Talur <rtalur@redhat.com>
> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>

Change-Id: Ib9fd878461b0b409c9d55d526cf60d7276c31775
BUG: 1331938
Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
Reviewed-on: http://review.gluster.org/14129
Tested-by: Prasanna Kumar Kalever <pkalever@redhat.com>
Smoke: Gluster Build System <jenkins@build.gluster.com>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>

0 files changed, 0 insertions, 0 deletions