index: Do not proceed with init if brick is not mounted

..or else when a volume start force is given, we end up creating
/brick-path/.glusterfs/indices folder and various subdirs under it and
eventually starting the brick process.

As a part of this patch, glusterd_get_index_basepath() is added in
glusterd, who will then use it to create the basepath during
volume-create, add-brick, replace-brick and reset-brick. It also uses this
function to set the 'index-base' xlator option for the index translator.

Change-Id: Id018cf3cb6f1e2e35b5c4cf438d1e939025cb0fc
BUG: 1457202
Signed-off-by: Ravishankar N <ravishankar@redhat.com>
Reviewed-on: https://review.gluster.org/17426
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/xlators/mgmt/glusterd/src/glusterd-utils.h b/xlators/mgmt/glusterd/src/glusterd-utils.h
index d694a312a41..7a739c85ebd 100644
--- a/xlators/mgmt/glusterd/src/glusterd-utils.h
+++ b/xlators/mgmt/glusterd/src/glusterd-utils.h
@@ -861,4 +861,15 @@ glusterd_brick_op_prerequisites (dict_t *dict,
 int
 glusterd_get_volinfo_from_brick (char *brick, glusterd_volinfo_t **volinfo);
 
+#define INDEX_BASEPATH ".glusterfs/indices"
+static inline void
+glusterd_get_index_basepath (glusterd_brickinfo_t *brickinfo, char *buffer,
+                             size_t size)
+{
+        if (!buffer)
+                return;
+        snprintf (buffer, size, "%s/%s", brickinfo->path, INDEX_BASEPATH);
+
+}
+
 #endif