[Libfix] Fix check_brick_pid_matches_glusterfsd_pid() to use pgrep

Problem:
On latest platforms pidof command is returning
multiple pids as shown below:
27190 27078 26854

This is becasue it was returning glusterd,glusterfsd
and glusterfs processes as well. The problem is that
/usr/sbin/glusterd is a link to glusterfsd.
'pidof' has a new feature that pidof searches for
the pattern in /proc/PID/cmdline, /proc/PID/stat and
finally /proc/PID/exe. Hence pidof matches realpath
of /proc/<pid_of_glusterd>/exe as /usr/sbin/glusterfsd
and results in glusterd, glusterfs and glusterfsd pids
being returned in output.

Fix:
Use pgrep instead of pidof to get glusterfsd
pids. And change the split logic accordingly.

Change-Id: I729e05c3f4cacf7bf826592da965a94a49bb6f33
Signed-off-by: kshithijiyer <kshithij.ki@gmail.com>

0 files changed, 0 insertions, 0 deletions