glusterd: Refactored brickinfo APIs

This patch modifies the existing brickinfo function signatures
and/or names to do one thing right and call them by 'appropriate' names.

- Decoupled brickinfo_get and is_brickpath_available
- Removed dead comment about realpath(3) in canonicalize_path
- Renamed glusterd_brickinfo_from_brick to glusterd_brickinfo_new_from_brick
  to make the name of the function reflect that an allocation is happening

Change-Id: I29daba6d431ca799d43c927b9dfbaeda327e83e8
BUG: 764890
Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com>
Reviewed-on: http://review.gluster.com/3668
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Amar Tumballi <amarts@redhat.com>

10 files changed, 145 insertions, 202 deletions

diff --git a/libglusterfs/src/common-utils.c b/libglusterfs/src/common-utils.c
index e5056b1e85e..3d668f9cf9b 100644
--- a/libglusterfs/src/common-utils.c
+++ b/libglusterfs/src/common-utils.c
@@ -2082,9 +2082,6 @@ gf_strip_whitespace (char *str, int len)
         return new_len;
 }
 
-/* If the path exists use realpath(3) to handle extra slashes and to resolve
- * symlinks else strip the extra slashes in the path and return */
-
 int
 gf_canonicalize_path (char *path)
 {
diff --git a/xlators/mgmt/glusterd/src/glusterd-brick-ops.c b/xlators/mgmt/glusterd/src/glusterd-brick-ops.c
index 640b8cb0dcc..ce81c0c797d 100644
--- a/xlators/mgmt/glusterd/src/glusterd-brick-ops.c
+++ b/xlators/mgmt/glusterd/src/glusterd-brick-ops.c
@@ -740,8 +740,7 @@ glusterd_handle_remove_brick (rpcsvc_request_t *req)
                         i, brick);
 
                 ret = glusterd_volume_brickinfo_get_by_brick(brick, volinfo,
-                                                             &brickinfo,
-                                                             GF_PATH_COMPLETE);
+                                                             &brickinfo);
                 if (ret) {
                         snprintf(err_str, 2048,"Incorrect brick %s for volume"
                                 " %s", brick, volname);
@@ -904,7 +903,7 @@ glusterd_op_perform_add_bricks (glusterd_volinfo_t *volinfo, int32_t count,
         }
 
         while ( i <= count) {
-                ret = glusterd_brickinfo_from_brick (brick, &brickinfo);
+                ret = glusterd_brickinfo_new_from_brick (brick, &brickinfo);
                 if (ret)
                         goto out;
 
@@ -953,12 +952,6 @@ glusterd_op_perform_add_bricks (glusterd_volinfo_t *volinfo, int32_t count,
 
         while (i <= count) {
 
-                ret = glusterd_volume_brickinfo_get_by_brick (brick, volinfo,
-                                                              &brickinfo,
-                                                              GF_PATH_PARTIAL);
-                if (ret)
-                        goto out;
-
                 if (GLUSTERD_STATUS_STARTED == volinfo->status) {
                         ret = glusterd_brick_start (volinfo, brickinfo);
                         if (ret)
@@ -982,7 +975,6 @@ glusterd_op_perform_remove_brick (glusterd_volinfo_t  *volinfo, char *brick,
                                   int force, int *need_migrate)
 {
         glusterd_brickinfo_t    *brickinfo = NULL;
-        char                    *dup_brick = NULL;
         int32_t                  ret = -1;
         glusterd_conf_t         *priv = NULL;
 
@@ -992,12 +984,8 @@ glusterd_op_perform_remove_brick (glusterd_volinfo_t  *volinfo, char *brick,
         priv = THIS->private;
         GF_ASSERT (priv);
 
-        dup_brick = gf_strdup (brick);
-        if (!dup_brick)
-                goto out;
-
-        ret = glusterd_volume_brickinfo_get_by_brick (dup_brick, volinfo,
-                                                      &brickinfo, GF_PATH_COMPLETE);
+        ret = glusterd_volume_brickinfo_get_by_brick (brick, volinfo,
+                                                      &brickinfo);
         if (ret)
                 goto out;
 
@@ -1027,9 +1015,8 @@ glusterd_op_perform_remove_brick (glusterd_volinfo_t  *volinfo, char *brick,
         }
 
         brickinfo->decommissioned = 1;
+        ret = 0;
 out:
-        GF_FREE (dup_brick);
-
         gf_log ("", GF_LOG_DEBUG, "Returning %d", ret);
         return ret;
 }
@@ -1129,27 +1116,14 @@ glusterd_op_stage_add_brick (dict_t *dict, char **op_errstr)
 
                 }
 
-                ret = glusterd_volume_brickinfo_get_by_brick (brick, volinfo,
-                                                              &brickinfo,
-                                                              GF_PATH_PARTIAL);
-                if (!ret) {
+                ret = glusterd_brickinfo_new_from_brick (brick, &brickinfo);
+                if (ret) {
                         gf_log (THIS->name, GF_LOG_ERROR,
-                                "Adding duplicate brick: %s", brick);
-                        snprintf (msg, sizeof (msg), "Brick %s is already a "
-                                  "part of the volume", brick);
-                        *op_errstr = gf_strdup (msg);
-                        ret = -1;
+                                "Add-brick: Unable"
+                                " to get brickinfo");
                         goto out;
-                } else {
-                        ret = glusterd_brickinfo_from_brick (brick, &brickinfo);
-                        if (ret) {
-                                gf_log (THIS->name, GF_LOG_ERROR,
-                                        "Add-brick: Unable"
-                                        " to get brickinfo");
-                                goto out;
-                        }
-                        brick_alloc = _gf_true;
                 }
+                brick_alloc = _gf_true;
 
                 ret = glusterd_new_brick_validate (brick, brickinfo, msg,
                                                    sizeof (msg));
diff --git a/xlators/mgmt/glusterd/src/glusterd-log-ops.c b/xlators/mgmt/glusterd/src/glusterd-log-ops.c
index 3ac78a917f2..b5fd5eff648 100644
--- a/xlators/mgmt/glusterd/src/glusterd-log-ops.c
+++ b/xlators/mgmt/glusterd/src/glusterd-log-ops.c
@@ -141,16 +141,13 @@ glusterd_op_stage_log_rotate (dict_t *dict, char **op_errstr)
                 goto out;
         }
 
-        if (strchr (brick, ':')) {
-                ret = glusterd_volume_brickinfo_get_by_brick (brick, volinfo, NULL,
-                                                              GF_PATH_COMPLETE);
-                if (ret) {
-                        snprintf (msg, sizeof (msg), "Incorrect brick %s "
-                                  "for volume %s", brick, volname);
-                        gf_log ("", GF_LOG_ERROR, "%s", msg);
-                        *op_errstr = gf_strdup (msg);
-                        goto out;
-                }
+        ret = glusterd_volume_brickinfo_get_by_brick (brick, volinfo, NULL);
+        if (ret) {
+                snprintf (msg, sizeof (msg), "Incorrect brick %s "
+                          "for volume %s", brick, volname);
+                gf_log ("", GF_LOG_ERROR, "%s", msg);
+                *op_errstr = gf_strdup (msg);
+                goto out;
         }
 out:
         gf_log ("", GF_LOG_DEBUG, "Returning %d", ret);
@@ -201,15 +198,11 @@ glusterd_op_log_rotate (dict_t *dict)
         if (ret)
                 goto cont;
 
-        if (!strchr (brick, ':'))
-                brick = NULL;
-        else {
-                ret = glusterd_brickinfo_from_brick (brick, &tmpbrkinfo);
-                if (ret) {
-                        gf_log ("glusterd", GF_LOG_ERROR,
-                                "cannot get brickinfo from brick");
-                        goto out;
-                }
+        ret = glusterd_brickinfo_new_from_brick (brick, &tmpbrkinfo);
+        if (ret) {
+                gf_log ("glusterd", GF_LOG_ERROR,
+                        "cannot get brickinfo from brick");
+                goto out;
         }
 
 cont:
diff --git a/xlators/mgmt/glusterd/src/glusterd-op-sm.c b/xlators/mgmt/glusterd/src/glusterd-op-sm.c
index 26817d4e3cc..d6855b9043b 100644
--- a/xlators/mgmt/glusterd/src/glusterd-op-sm.c
+++ b/xlators/mgmt/glusterd/src/glusterd-op-sm.c
@@ -654,7 +654,6 @@ glusterd_op_stage_status_volume (dict_t *dict, char **op_errstr)
         xlator_t              *this           = NULL;
         glusterd_conf_t       *priv           = NULL;
         glusterd_brickinfo_t  *brickinfo      = NULL;
-        glusterd_brickinfo_t  *tmpbrickinfo   = NULL;
         glusterd_volinfo_t    *volinfo        = NULL;
         dict_t                *vol_opts       = NULL;
         gf_boolean_t           nfs_disabled   = _gf_false;
@@ -742,21 +741,8 @@ glusterd_op_stage_status_volume (dict_t *dict, char **op_errstr)
                 if (ret)
                         goto out;
 
-                ret = glusterd_brickinfo_from_brick (brick, &brickinfo);
-                if (ret) {
-                        snprintf (msg, sizeof (msg), "%s is not a brick",
-                                  brick);
-                        gf_log (THIS->name, GF_LOG_ERROR, "%s", msg);
-                        goto out;
-                }
-
-                ret = glusterd_volume_brickinfo_get (NULL,
-                                                     brickinfo->hostname,
-                                                     brickinfo->path,
-                                                     volinfo,
-                                                     &tmpbrickinfo,
-                                                     GF_PATH_COMPLETE);
-
+                ret = glusterd_volume_brickinfo_get_by_brick (brick, volinfo,
+                                                              &brickinfo);
                 if (ret) {
                         snprintf (msg, sizeof(msg), "No brick %s in"
                                   " volume %s", brick, volname);
@@ -1523,8 +1509,7 @@ glusterd_op_status_volume (dict_t *dict, char **op_errstr,
 
                 ret = glusterd_volume_brickinfo_get_by_brick (brick,
                                                               volinfo,
-                                                              &brickinfo,
-                                                              GF_PATH_COMPLETE);
+                                                              &brickinfo);
                 if (ret)
                         goto out;
 
@@ -3528,8 +3513,7 @@ glusterd_bricks_select_remove_brick (dict_t *dict, char **op_errstr)
                 }
 
                 ret = glusterd_volume_brickinfo_get_by_brick (brick, volinfo,
-                                                              &brickinfo,
-                                                              GF_PATH_COMPLETE);
+                                                              &brickinfo);
                 if (ret)
                         goto out;
                 if (glusterd_is_brick_started (brickinfo)) {
@@ -3670,8 +3654,7 @@ glusterd_bricks_select_profile_volume (dict_t *dict, char **op_errstr)
                 ret = dict_get_str (dict, "brick", &brick);
                 if (!ret) {
                         ret = glusterd_volume_brickinfo_get_by_brick (brick, volinfo,
-                                                                      &brickinfo,
-                                                                      GF_PATH_COMPLETE);
+                                                                      &brickinfo);
                         if (ret)
                                 goto out;
 
@@ -4007,8 +3990,7 @@ glusterd_bricks_select_status_volume (dict_t *dict, char **op_errstr)
                 }
                 ret = glusterd_volume_brickinfo_get_by_brick (brickname,
                                                               volinfo,
-                                                              &brickinfo,
-                                                              GF_PATH_COMPLETE);
+                                                              &brickinfo);
                 if (ret)
                         goto out;
 
diff --git a/xlators/mgmt/glusterd/src/glusterd-replace-brick.c b/xlators/mgmt/glusterd/src/glusterd-replace-brick.c
index 5bd6a55b95b..fc35a4406a1 100644
--- a/xlators/mgmt/glusterd/src/glusterd-replace-brick.c
+++ b/xlators/mgmt/glusterd/src/glusterd-replace-brick.c
@@ -363,8 +363,7 @@ glusterd_op_stage_replace_brick (dict_t *dict, char **op_errstr,
         }
 
         ret = glusterd_volume_brickinfo_get_by_brick (src_brick, volinfo,
-                                                      &src_brickinfo,
-                                                      GF_PATH_COMPLETE);
+                                                      &src_brickinfo);
         if (ret) {
                 snprintf (msg, sizeof (msg), "brick: %s does not exist in "
                           "volume: %s", src_brick, volname);
@@ -432,18 +431,20 @@ glusterd_op_stage_replace_brick (dict_t *dict, char **op_errstr,
                 ret = -1;
                 goto out;
         }
-        if (!glusterd_brickinfo_get (NULL, host, path, NULL)) {
-                snprintf(msg, sizeof(msg), "Brick: %s:%s already in use",
-                         host, path);
+
+        ret = glusterd_brickinfo_new_from_brick (dst_brick, &dst_brickinfo);
+        if (ret)
+                goto out;
+
+        ret = glusterd_new_brick_validate (dst_brick, dst_brickinfo,
+                                           msg, sizeof (msg));
+        if (ret) {
                 *op_errstr = gf_strdup (msg);
                 ret = -1;
+                gf_log (THIS->name, GF_LOG_ERROR, *op_errstr);
                 goto out;
         }
 
-        ret = glusterd_brickinfo_from_brick (dst_brick, &dst_brickinfo);
-        if (ret)
-                goto out;
-
        if (!glusterd_is_rb_ongoing (volinfo) &&
             (replace_op == GF_REPLACE_OP_START ||
              replace_op == GF_REPLACE_OP_COMMIT_FORCE)) {
@@ -1321,14 +1322,8 @@ glusterd_op_perform_replace_brick (glusterd_volinfo_t  *volinfo,
 
         GF_ASSERT (volinfo);
 
-        ret = glusterd_brickinfo_from_brick (new_brick,
-                                             &new_brickinfo);
-        if (ret)
-                goto out;
-
-        ret = glusterd_volume_brickinfo_get_by_brick (old_brick, volinfo,
-                                                      &old_brickinfo,
-                                                      GF_PATH_COMPLETE);
+        ret = glusterd_brickinfo_new_from_brick (new_brick,
+                                                 &new_brickinfo);
         if (ret)
                 goto out;
 
@@ -1355,8 +1350,8 @@ glusterd_op_perform_replace_brick (glusterd_volinfo_t  *volinfo,
                         goto out;
         }
 
-
 out:
+
         gf_log ("", GF_LOG_DEBUG, "Returning %d", ret);
         return ret;
 }
@@ -1421,8 +1416,7 @@ glusterd_op_replace_brick (dict_t *dict, dict_t *rsp_dict)
         }
 
         ret = glusterd_volume_brickinfo_get_by_brick (src_brick, volinfo,
-                                                      &src_brickinfo,
-                                                      GF_PATH_COMPLETE);
+                                                      &src_brickinfo);
         if (ret) {
                 gf_log ("", GF_LOG_DEBUG, "Unable to get src-brickinfo");
                 goto out;
@@ -1742,8 +1736,7 @@ glusterd_do_replace_brick (void *data)
         }
 
         ret = glusterd_volume_brickinfo_get_by_brick (src_brick, volinfo,
-                                                      &src_brickinfo,
-                                                      GF_PATH_COMPLETE);
+                                                      &src_brickinfo);
         if (ret) {
                 gf_log ("", GF_LOG_DEBUG, "Unable to get src-brickinfo");
                 goto out;
diff --git a/xlators/mgmt/glusterd/src/glusterd-store.c b/xlators/mgmt/glusterd/src/glusterd-store.c
index 5fb18d0ae98..2f392f5760c 100644
--- a/xlators/mgmt/glusterd/src/glusterd-store.c
+++ b/xlators/mgmt/glusterd/src/glusterd-store.c
@@ -234,7 +234,7 @@ glusterd_store_is_valid_brickpath (char *volname, char *brick)
         int32_t                 ret = 0;
         size_t                  volname_len = strlen (volname);
 
-        ret = glusterd_brickinfo_from_brick (brick, &brickinfo);
+        ret = glusterd_brickinfo_new_from_brick (brick, &brickinfo);
         if (ret) {
                 gf_log ("", GF_LOG_WARNING, "brick path validation failed");
                 ret = 0;
@@ -1991,13 +1991,13 @@ glusterd_store_retrieve_rbstate (char   *volname)
                 if (volinfo->rb_status > GF_RB_STATUS_NONE) {
                         if (!strncmp (key, GLUSTERD_STORE_KEY_RB_SRC_BRICK,
                                       strlen (GLUSTERD_STORE_KEY_RB_SRC_BRICK))) {
-                                ret = glusterd_brickinfo_from_brick (value,
+                                ret = glusterd_brickinfo_new_from_brick (value,
                                                                      &volinfo->src_brick);
                                 if (ret)
                                         goto out;
                         } else if (!strncmp (key, GLUSTERD_STORE_KEY_RB_DST_BRICK,
                                              strlen (GLUSTERD_STORE_KEY_RB_DST_BRICK))) {
-                                ret = glusterd_brickinfo_from_brick (value,
+                                ret = glusterd_brickinfo_new_from_brick (value,
                                                                      &volinfo->dst_brick);
                                 if (ret)
                                         goto out;
diff --git a/xlators/mgmt/glusterd/src/glusterd-utils.c b/xlators/mgmt/glusterd/src/glusterd-utils.c
index feb81d8de80..987615a573d 100644
--- a/xlators/mgmt/glusterd/src/glusterd-utils.c
+++ b/xlators/mgmt/glusterd/src/glusterd-utils.c
@@ -735,8 +735,8 @@ glusterd_resolve_brick (glusterd_brickinfo_t *brickinfo)
 }
 
 int32_t
-glusterd_brickinfo_from_brick (char *brick,
-                               glusterd_brickinfo_t **brickinfo)
+glusterd_brickinfo_new_from_brick (char *brick,
+                                   glusterd_brickinfo_t **brickinfo)
 {
         int32_t                 ret = -1;
         glusterd_brickinfo_t    *new_brickinfo = NULL;
@@ -780,11 +780,69 @@ out:
         return ret;
 }
 
+static gf_boolean_t
+_is_prefix (char *str1, char *str2)
+{
+        GF_ASSERT (str1);
+        GF_ASSERT (str2);
+
+        int             i = 0;
+        int             small_len = 0;
+        gf_boolean_t    prefix = _gf_true;
+
+        small_len = min (strlen (str1), strlen (str2));
+        for (i = 0; i < small_len; i++) {
+                if (str1[i] != str2[i]) {
+                        prefix = _gf_false;
+                        break;
+                }
+
+        }
+
+        return prefix;
+}
+
+/* Checks if @path is available in the peer identified by @uuid
+ * 'availability' is determined by querying current state of volumes
+ * in the cluster. */
+gf_boolean_t
+glusterd_is_brickpath_available (uuid_t uuid, char *path)
+{
+        glusterd_brickinfo_t    *brickinfo = NULL;
+        glusterd_volinfo_t      *volinfo   = NULL;
+        glusterd_conf_t         *priv      = NULL;
+        gf_boolean_t            available  = _gf_false;
+        char                    tmp_path[PATH_MAX+1] = {0};
+        char                    tmp_brickpath[PATH_MAX+1] = {0};
+
+        priv = THIS->private;
+
+        strncpy (tmp_path, path, PATH_MAX);
+        /* path may not yet exist */
+        if (!realpath (path, tmp_path) && (errno != ENOENT))
+                goto out;
+
+        list_for_each_entry (volinfo, &priv->volumes, vol_list) {
+                list_for_each_entry (brickinfo, &volinfo->bricks, brick_list) {
+                        if (uuid_compare (uuid, brickinfo->uuid))
+                                continue;
+
+                        if (!realpath (brickinfo->path, tmp_brickpath))
+                                goto out;
+
+                        if (_is_prefix (tmp_brickpath, tmp_path))
+                                goto out;
+                }
+        }
+        available = _gf_true;
+out:
+        return available;
+}
+
 int32_t
 glusterd_volume_brickinfo_get (uuid_t uuid, char *hostname, char *path,
                                glusterd_volinfo_t *volinfo,
-                               glusterd_brickinfo_t **brickinfo,
-                               gf_path_match_t path_match)
+                               glusterd_brickinfo_t **brickinfo)
 {
         glusterd_brickinfo_t    *brickiter = NULL;
         uuid_t                  peer_uuid = {0};
@@ -800,34 +858,19 @@ glusterd_volume_brickinfo_get (uuid_t uuid, char *hostname, char *path,
         ret = -1;
         list_for_each_entry (brickiter, &volinfo->bricks, brick_list) {
 
-                if (uuid_is_null (brickiter->uuid) &&
-                    glusterd_resolve_brick (brickiter))
+                if ((uuid_is_null (brickiter->uuid)) &&
+                    (glusterd_resolve_brick (brickiter) != 0))
                         goto out;
                 if (uuid_compare (peer_uuid, brickiter->uuid))
                         continue;
 
-                if (!strcmp (brickiter->path, path)) {
+                if (strcmp (brickiter->path, path) == 0) {
                         gf_log (THIS->name, GF_LOG_INFO, "Found brick");
                         ret = 0;
                         if (brickinfo)
                                 *brickinfo = brickiter;
                         break;
                 }
-
-                if (path_match != GF_PATH_PARTIAL)
-                        continue;
-
-#ifdef GF_LINUX_HOST_OS
-                if (!fnmatch (path, brickiter->path, FNM_LEADING_DIR) ||
-                    !fnmatch (brickiter->path, path, FNM_LEADING_DIR)) {
-                        gf_log (THIS->name, GF_LOG_ERROR,
-                                "paths %s and %s are recursive",
-                                path, brickiter->path);
-                        *brickinfo = brickiter;
-                        ret = 0;
-                        break;
-                }
-#endif
         }
 
 out:
@@ -838,40 +881,23 @@ out:
 int32_t
 glusterd_volume_brickinfo_get_by_brick (char *brick,
                                         glusterd_volinfo_t *volinfo,
-                                        glusterd_brickinfo_t **brickinfo,
-                                        gf_path_match_t path_match)
+                                        glusterd_brickinfo_t **brickinfo)
 {
         int32_t                 ret = -1;
-        char                    *hostname = NULL;
-        char                    *path = NULL;
-        char                    *tmp_host = NULL;
-        char                    *tmp_path = NULL;
+        glusterd_brickinfo_t    *tmp_brickinfo = NULL;
 
         GF_ASSERT (brick);
         GF_ASSERT (volinfo);
 
-        gf_log ("", GF_LOG_INFO, "brick: %s", brick);
-
-        tmp_host = gf_strdup (brick);
-        if (tmp_host)
-                get_host_name (tmp_host, &hostname);
-        tmp_path = gf_strdup (brick);
-        if (tmp_path)
-                get_path_name (tmp_path, &path);
-
-        if (!hostname || !path) {
-                gf_log ("", GF_LOG_ERROR,
-                        "brick %s is not of form <HOSTNAME>:<export-dir>",
-                        brick);
-                ret = -1;
+        ret = glusterd_brickinfo_new_from_brick (brick, &tmp_brickinfo);
+        if (ret)
                 goto out;
-        }
 
-        ret = glusterd_volume_brickinfo_get (NULL, hostname, path, volinfo,
-                                             brickinfo, path_match);
+        ret = glusterd_volume_brickinfo_get (NULL, tmp_brickinfo->hostname,
+                                             tmp_brickinfo->path, volinfo,
+                                             brickinfo);
+        (void) glusterd_brickinfo_delete (tmp_brickinfo);
 out:
-        GF_FREE (tmp_host);
-        GF_FREE (tmp_path);
         gf_log ("", GF_LOG_DEBUG, "Returning %d", ret);
         return ret;
 }
@@ -885,7 +911,7 @@ glusterd_is_brick_decommissioned (glusterd_volinfo_t *volinfo, char *hostname,
         int                     ret = -1;
 
         ret = glusterd_volume_brickinfo_get (NULL, hostname, path, volinfo,
-                                             &brickinfo, GF_PATH_COMPLETE);
+                                             &brickinfo);
         if (ret)
                 goto out;
         decommissioned = brickinfo->decommissioned;
@@ -2289,7 +2315,7 @@ glusterd_import_volinfo (dict_t *vols, int count,
                 if (ret)
                         goto out;
 
-                ret = glusterd_brickinfo_from_brick (src_brick,
+                ret = glusterd_brickinfo_new_from_brick (src_brick,
                                                      &new_volinfo->src_brick);
                 if (ret) {
                         gf_log ("", GF_LOG_ERROR, "Unable to create"
@@ -2304,7 +2330,7 @@ glusterd_import_volinfo (dict_t *vols, int count,
                 if (ret)
                         goto out;
 
-                ret = glusterd_brickinfo_from_brick (dst_brick,
+                ret = glusterd_brickinfo_new_from_brick (dst_brick,
                                                      &new_volinfo->dst_brick);
                 if (ret) {
                         gf_log ("", GF_LOG_ERROR, "Unable to create"
@@ -2366,8 +2392,7 @@ glusterd_volinfo_copy_brick_portinfo (glusterd_volinfo_t *new_volinfo,
                 ret = glusterd_volume_brickinfo_get (new_brickinfo->uuid,
                                                      new_brickinfo->hostname,
                                                      new_brickinfo->path,
-                                                     old_volinfo, &old_brickinfo,
-                                                     GF_PATH_COMPLETE);
+                                                     old_volinfo, &old_brickinfo);
                 if ((0 == ret) && glusterd_is_brick_started (old_brickinfo)) {
                         new_brickinfo->port = old_brickinfo->port;
                 }
@@ -2393,8 +2418,7 @@ glusterd_volinfo_stop_stale_bricks (glusterd_volinfo_t *new_volinfo,
                 ret = glusterd_volume_brickinfo_get (old_brickinfo->uuid,
                                                      old_brickinfo->hostname,
                                                      old_brickinfo->path,
-                                                     new_volinfo, &new_brickinfo,
-                                                     GF_PATH_COMPLETE);
+                                                     new_volinfo, &new_brickinfo);
                 if (ret) {
                         ret = glusterd_brick_stop (old_volinfo, old_brickinfo);
                         if (ret)
@@ -3373,9 +3397,9 @@ glusterd_brickinfo_get (uuid_t uuid, char *hostname, char *path,
         list_for_each_entry (volinfo, &priv->volumes, vol_list) {
 
                 ret = glusterd_volume_brickinfo_get (uuid, hostname, path,
-                                                     volinfo, brickinfo,
-                                                     GF_PATH_COMPLETE);
-                if (!ret)
+                                                     volinfo, brickinfo);
+                if (ret == 0)
+                        /*Found*/
                         goto out;
         }
 out:
@@ -4250,7 +4274,6 @@ glusterd_new_brick_validate (char *brick, glusterd_brickinfo_t *brickinfo,
                              char *op_errstr, size_t len)
 {
         glusterd_brickinfo_t    *newbrickinfo = NULL;
-        glusterd_brickinfo_t    *tmpbrkinfo = NULL;
         int                     ret = -1;
         gf_boolean_t            is_allocated = _gf_false;
         glusterd_peerinfo_t     *peerinfo = NULL;
@@ -4267,7 +4290,7 @@ glusterd_new_brick_validate (char *brick, glusterd_brickinfo_t *brickinfo,
         GF_ASSERT (op_errstr);
 
         if (!brickinfo) {
-                ret = glusterd_brickinfo_from_brick (brick, &newbrickinfo);
+                ret = glusterd_brickinfo_new_from_brick (brick, &newbrickinfo);
                 if (ret)
                         goto out;
                 is_allocated = _gf_true;
@@ -4297,11 +4320,10 @@ glusterd_new_brick_validate (char *brick, glusterd_brickinfo_t *brickinfo,
                 goto out;
         }
 brick_validation:
-        ret = glusterd_brickinfo_get (newbrickinfo->uuid,
-                                      newbrickinfo->hostname,
-                                      newbrickinfo->path, &tmpbrkinfo);
-        if (!ret) {
-                snprintf(op_errstr, len, "Brick: %s already in use",
+        if (!glusterd_is_brickpath_available (newbrickinfo->uuid,
+                                              newbrickinfo->path)) {
+                snprintf(op_errstr, len, "Brick: %s not available. Brick may "
+                         "be containing or be contained by an existing brick",
                          brick);
                 gf_log (THIS->name, GF_LOG_ERROR, "%s", op_errstr);
                 ret = -1;
@@ -4836,7 +4858,7 @@ glusterd_delete_brick (glusterd_volinfo_t* volinfo,
         ret = glusterd_volume_brickinfo_get (brickinfo->uuid,
                                              brickinfo->hostname,
                                              brickinfo->path, volinfo,
-                                             NULL, GF_PATH_COMPLETE);
+                                             NULL);
         GF_ASSERT (0 == ret);
 #endif
         glusterd_delete_volfile (volinfo, brickinfo);
diff --git a/xlators/mgmt/glusterd/src/glusterd-utils.h b/xlators/mgmt/glusterd/src/glusterd-utils.h
index 0990ae5247d..c538345fd12 100644
--- a/xlators/mgmt/glusterd/src/glusterd-utils.h
+++ b/xlators/mgmt/glusterd/src/glusterd-utils.h
@@ -38,12 +38,6 @@
 #include "rpc-clnt.h"
 #include "protocol-common.h"
 
-/* For brick search using path: partial or complete */
-typedef enum {
-        GF_PATH_COMPLETE = 0,
-        GF_PATH_PARTIAL
-} gf_path_match_t;
-
 struct glusterd_lock_ {
         uuid_t  owner;
         time_t  timestamp;
@@ -112,7 +106,7 @@ int32_t
 glusterd_brickinfo_new (glusterd_brickinfo_t **brickinfo);
 
 int32_t
-glusterd_brickinfo_from_brick (char *brick, glusterd_brickinfo_t **brickinfo);
+glusterd_brickinfo_new_from_brick (char *brick, glusterd_brickinfo_t **brickinfo);
 
 int32_t
 glusterd_friend_cleanup (glusterd_peerinfo_t *peerinfo);
@@ -153,8 +147,8 @@ glusterd_is_cli_op_req (int32_t op);
 int32_t
 glusterd_volume_brickinfo_get_by_brick (char *brick,
                                         glusterd_volinfo_t *volinfo,
-                                        glusterd_brickinfo_t **brickinfo,
-                                        gf_path_match_t path_match);
+                                        glusterd_brickinfo_t **brickinfo);
+
 int32_t
 glusterd_is_local_addr (char *hostname);
 
@@ -299,8 +293,8 @@ glusterd_volume_brickinfos_delete (glusterd_volinfo_t *volinfo);
 int32_t
 glusterd_volume_brickinfo_get (uuid_t uuid, char *hostname, char *path,
                                glusterd_volinfo_t *volinfo,
-                               glusterd_brickinfo_t **brickinfo,
-                               gf_path_match_t path_match);
+                               glusterd_brickinfo_t **brickinfo);
+
 int
 glusterd_brickinfo_get (uuid_t uuid, char *hostname, char *path,
                        glusterd_brickinfo_t **brickinfo);
diff --git a/xlators/mgmt/glusterd/src/glusterd-volgen.c b/xlators/mgmt/glusterd/src/glusterd-volgen.c
index 26811601915..28d37d7ed6c 100644
--- a/xlators/mgmt/glusterd/src/glusterd-volgen.c
+++ b/xlators/mgmt/glusterd/src/glusterd-volgen.c
@@ -3110,7 +3110,7 @@ glusterd_is_valid_volfpath (char *volname, char *brick)
         glusterd_volinfo_t      *volinfo = NULL;
         int32_t                 ret = 0;
 
-        ret = glusterd_brickinfo_from_brick (brick, &brickinfo);
+        ret = glusterd_brickinfo_new_from_brick (brick, &brickinfo);
         if (ret) {
                 gf_log ("", GF_LOG_WARNING, "brick path validation failed");
                 ret = 0;
diff --git a/xlators/mgmt/glusterd/src/glusterd-volume-ops.c b/xlators/mgmt/glusterd/src/glusterd-volume-ops.c
index f706ac67436..829985022a6 100644
--- a/xlators/mgmt/glusterd/src/glusterd-volume-ops.c
+++ b/xlators/mgmt/glusterd/src/glusterd-volume-ops.c
@@ -58,7 +58,6 @@ glusterd_handle_create_volume (rpcsvc_request_t *req)
         char                   *trans_type  = NULL;
         uuid_t                  volume_id   = {0,};
         uuid_t                  tmp_uuid    = {0};
-        glusterd_brickinfo_t    *tmpbrkinfo = NULL;
         glusterd_volinfo_t      tmpvolinfo  = {{0},};
         int32_t                 type        = 0;
         char                   *username    = NULL;
@@ -126,12 +125,12 @@ glusterd_handle_create_volume (rpcsvc_request_t *req)
         }
 
         ret = dict_get_int32 (dict, "type", &type);
-        /*if (ret) {
+        if (ret) {
                 gf_log ("", GF_LOG_ERROR, "Unable to get type");
                 snprintf (err_str, sizeof (err_str), "Unable to get volume "
                           "type");
                 goto out;
-        }*/
+        }
 
         ret = dict_get_str (dict, "transport", &trans_type);
         if (ret) {
@@ -173,7 +172,7 @@ glusterd_handle_create_volume (rpcsvc_request_t *req)
                 i++;
                 brick= strtok_r (brick_list, " \n", &tmpptr);
                 brick_list = tmpptr;
-                ret = glusterd_brickinfo_from_brick (brick, &brickinfo);
+                ret = glusterd_brickinfo_new_from_brick (brick, &brickinfo);
                 if (ret) {
                         snprintf (err_str, sizeof (err_str), "Unable to get "
                                   "brick info from brick %s", brick);
@@ -184,18 +183,7 @@ glusterd_handle_create_volume (rpcsvc_request_t *req)
                                                    sizeof (err_str));
                 if (ret)
                         goto out;
-                ret = glusterd_volume_brickinfo_get (brickinfo->uuid,
-                                                     brickinfo->hostname,
-                                                     brickinfo->path,
-                                                     &tmpvolinfo, &tmpbrkinfo,
-                                                     GF_PATH_PARTIAL);
-                if (!ret) {
-                        ret = -1;
-                        snprintf (err_str, sizeof (err_str), "Brick: %s:%s, %s"
-                                  " one of the bricks contain the other",
-                                  tmpbrkinfo->hostname, tmpbrkinfo->path, brick);
-                        goto out;
-                }
+
                 list_add_tail (&brickinfo->brick_list, &tmpvolinfo.bricks);
                 brickinfo = NULL;
         }
@@ -701,7 +689,7 @@ glusterd_op_stage_create_volume (dict_t *dict, char **op_errstr)
                         goto out;
                 }
 
-                ret = glusterd_brickinfo_from_brick (brick, &brick_info);
+                ret = glusterd_brickinfo_new_from_brick (brick, &brick_info);
                 if (ret)
                         goto out;
                 snprintf (cmd_str, 1024, "%s", brick_info->path);
@@ -1396,7 +1384,7 @@ glusterd_op_create_volume (dict_t *dict, char **op_errstr)
                 brick = strtok_r (brick_list+1, " \n", &saveptr);
 
         while ( i <= count) {
-                ret = glusterd_brickinfo_from_brick (brick, &brickinfo);
+                ret = glusterd_brickinfo_new_from_brick (brick, &brickinfo);
                 if (ret)
                         goto out;