cli: Add a cli command to enable/disable barrier

This patch adds a new
 'gluster volume barrier <VOLNAME> {enable|disable}'
cli command. This helps in testing the brick op code path when testing
the barrier xlator.
This patch can be reverted later if not required for end users.
Change-Id: Icd86a2d13e7f276dda1ecbb2593d60638ece7dcd
BUG: 1060002
Signed-off-by: Kaushal M <kaushal@redhat.com>
Reviewed-on: http://review.gluster.org/6958
Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>

1 files changed, 17 insertions, 3 deletions

diff --git a/xlators/mgmt/glusterd/src/glusterd-volgen.c b/xlators/mgmt/glusterd/src/glusterd-volgen.c
index ae095bf7c63..6ce38e91b5b 100644
--- a/xlators/mgmt/glusterd/src/glusterd-volgen.c
+++ b/xlators/mgmt/glusterd/src/glusterd-volgen.c
@@ -3656,7 +3656,7 @@ glusterd_create_rb_volfiles (glusterd_volinfo_t *volinfo,
 }
 
 int
-glusterd_create_volfiles_and_notify_services (glusterd_volinfo_t *volinfo)
+glusterd_create_volfiles (glusterd_volinfo_t *volinfo)
 {
         int        ret  = -1;
         xlator_t  *this = NULL;
@@ -3678,11 +3678,25 @@ glusterd_create_volfiles_and_notify_services (glusterd_volinfo_t *volinfo)
         }
 
         ret = generate_client_volfiles (volinfo, GF_CLIENT_OTHER);
-        if (ret) {
+        if (ret)
                 gf_log (this->name, GF_LOG_ERROR,
                         "Could not generate client volfiles");
+
+out:
+        return ret;
+}
+
+int
+glusterd_create_volfiles_and_notify_services (glusterd_volinfo_t *volinfo)
+{
+        int        ret  = -1;
+        xlator_t  *this = NULL;
+
+        this = THIS;
+
+        ret = glusterd_create_volfiles (volinfo);
+        if (ret)
                 goto out;
-        }
 
         ret = glusterd_fetchspec_notify (this);