"gcc -pedantic": made 'inline' functions as 'static inline' functions

for passing the build with -pedantic flag

Change-Id: I80fd9528321e4c6ea5bec32bf5cdc54cc4e4f65e
BUG: 875913
Signed-off-by: Amar Tumballi <amarts@redhat.com>
Reviewed-on: http://review.gluster.org/4186
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>