glusterd/ganesha : handle volume reset properly for ganesha options

The "gluster volume reset" should first unexport the volume and then delete
export configuration file. Also reset option is not applicable for ganesha.enable
if volume value is "all".
This patch also changes the name of create_export_config into manange_export_config

Upstream reference :
>Change-Id: Ie81a49e7d3e39a88bca9fbae5002bfda5cab34af
>BUG: 1397795
>Signed-off-by: Jiffin Tony Thottan <jthottan@redhat.com>
>Reviewed-on: http://review.gluster.org/15914
>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: soumya k <skoduri@redhat.com>
>Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
>Signed-off-by: Jiffin Tony Thottan <jthottan@redhat.com>

Change-Id: Ie81a49e7d3e39a88bca9fbae5002bfda5cab34af
BUG: 1402366
Signed-off-by: Jiffin Tony Thottan <jthottan@redhat.com>
Reviewed-on: http://review.gluster.org/16054
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: Kaleb KEITHLEY <kkeithle@redhat.com>

3 files changed, 31 insertions, 34 deletions

diff --git a/xlators/mgmt/glusterd/src/glusterd-ganesha.c b/xlators/mgmt/glusterd/src/glusterd-ganesha.c
index 6c34de0dda4..746a3d1e364 100644
--- a/xlators/mgmt/glusterd/src/glusterd-ganesha.c
+++ b/xlators/mgmt/glusterd/src/glusterd-ganesha.c
@@ -215,7 +215,7 @@ glusterd_check_ganesha_cmd (char *key, char *value, char **errstr, dict_t *dict)
                                 "Unable to get volume name");
                                 goto out;
                         }
-                        ret = create_export_config (volname, "off", errstr);
+                        ret = manage_export_config (volname, "off", errstr);
                  }
         }
 out:
@@ -426,7 +426,7 @@ check_host_list (void)
 }
 
 int
-create_export_config (char *volname, char *value, char **op_errstr)
+manage_export_config (char *volname, char *value, char **op_errstr)
 {
         runner_t                runner                     = {0,};
         int                     ret                        = -1;
@@ -527,7 +527,7 @@ ganesha_manage_export (dict_t *dict, char *value, char **op_errstr)
          * is executed
          * */
          if (option) {
-                ret  =  create_export_config (volname, "on", op_errstr);
+                ret  = manage_export_config (volname, "on", op_errstr);
                 if (ret) {
                         gf_msg (this->name, GF_LOG_ERROR, 0,
                                 GD_MSG_EXPORT_FILE_CREATE_FAIL,
diff --git a/xlators/mgmt/glusterd/src/glusterd-op-sm.c b/xlators/mgmt/glusterd/src/glusterd-op-sm.c
index 249cda8f1f8..67bde3d2360 100644
--- a/xlators/mgmt/glusterd/src/glusterd-op-sm.c
+++ b/xlators/mgmt/glusterd/src/glusterd-op-sm.c
@@ -1498,15 +1498,6 @@ glusterd_op_stage_reset_volume (dict_t *dict, char **op_errstr)
                 ret = glusterd_validate_volume_id (dict, volinfo);
                 if (ret)
                         goto out;
-                ret = dict_get_str_boolean (priv->opts,
-                            GLUSTERD_STORE_KEY_GANESHA_GLOBAL, _gf_false);
-                if (ret) {
-                        ret =  stop_ganesha (op_errstr);
-                        if (ret)
-                                gf_msg (THIS->name, GF_LOG_WARNING, 0,
-                                        GD_MSG_NFS_GNS_STOP_FAIL,
-                                        "Could not stop NFS-Ganesha service");
-                }
 
         }
 
@@ -1516,7 +1507,23 @@ glusterd_op_stage_reset_volume (dict_t *dict, char **op_errstr)
                         GD_MSG_DICT_GET_FAILED, "Unable to get option key");
                 goto out;
         }
-        if (strcmp(key, "all")) {
+
+        /* *
+         * If key ganesha.enable is set, then volume should be unexported from
+         * ganesha server. Also it is a volume-level option, perform only when
+         * volume name not equal to "all"(in other words if volinfo != NULL)
+         */
+        if (volinfo && (!strcmp (key, "all") || !strcmp(key, "ganesha.enable"))) {
+                if (glusterd_check_ganesha_export (volinfo)) {
+                        ret = ganesha_manage_export (dict, "off", op_errstr);
+                        if (ret)
+                                gf_msg (this->name, GF_LOG_WARNING, 0,
+                                        GD_MSG_NFS_GNS_RESET_FAIL,
+                                        "Could not reset ganesha.enable key");
+                }
+        }
+
+       if (strcmp(key, "all")) {
                 exists = glusterd_check_option_exists (key, &key_fixed);
                 if (exists == -1) {
                         ret = -1;
@@ -2053,7 +2060,6 @@ glusterd_op_reset_all_volume_options (xlator_t *this, dict_t *dict)
         gf_boolean_t    all             = _gf_false;
         char            *next_version   = NULL;
         gf_boolean_t    quorum_action   = _gf_false;
-        gf_boolean_t     option         = _gf_false;
         char            *op_errstr      = NULL;
 
         conf = this->private;
@@ -2083,15 +2089,6 @@ glusterd_op_reset_all_volume_options (xlator_t *this, dict_t *dict)
 
         if (key_fixed)
                 key = key_fixed;
-        option = dict_get_str_boolean (conf->opts, GLUSTERD_STORE_KEY_GANESHA_GLOBAL,
-                            _gf_false);
-        if (option) {
-                ret = tear_down_cluster (is_origin_glusterd (dict));
-                if (ret == -1)
-                        gf_msg (THIS->name, GF_LOG_WARNING, errno,
-                                GD_MSG_DICT_GET_FAILED,
-                                "Could not tear down NFS-Ganesha cluster");
-        }
 
         ret = -1;
         dup_opt = dict_new ();
@@ -2200,16 +2197,6 @@ glusterd_op_reset_volume (dict_t *dict, char **op_rspstr)
 
         if (glusterd_is_quorum_changed (volinfo->dict, key, NULL))
                 quorum_action = _gf_true;
-        ret = glusterd_check_ganesha_export (volinfo);
-        if (ret) {
-                ret = ganesha_manage_export (dict, "off", op_rspstr);
-                if (ret) {
-                        gf_msg (THIS->name, GF_LOG_WARNING, 0,
-                                GD_MSG_NFS_GNS_RESET_FAIL,
-                                "Could not reset ganesha.enable key");
-                        ret = 0;
-                }
-        }
 
         ret = glusterd_options_reset (volinfo, key, &is_force);
         if (ret == -1) {
@@ -2226,6 +2213,16 @@ glusterd_op_reset_volume (dict_t *dict, char **op_rspstr)
                 }
         }
 
+        if (!strcmp(key, "ganesha.enable") || !strcmp (key, "all")) {
+                if (glusterd_check_ganesha_export (volinfo)) {
+                        ret = manage_export_config (volname, "off", op_rspstr);
+                        if (ret)
+                                gf_msg (this->name, GF_LOG_WARNING, 0,
+                                        GD_MSG_NFS_GNS_RESET_FAIL,
+                                        "Could not reset ganesha.enable key");
+                }
+         }
+
 out:
         GF_FREE (key_fixed);
         if (quorum_action)
diff --git a/xlators/mgmt/glusterd/src/glusterd.h b/xlators/mgmt/glusterd/src/glusterd.h
index 2626eb43591..20a956d9154 100644
--- a/xlators/mgmt/glusterd/src/glusterd.h
+++ b/xlators/mgmt/glusterd/src/glusterd.h
@@ -1075,7 +1075,7 @@ int glusterd_check_ganesha_cmd (char *key, char *value,
 int glusterd_op_stage_set_ganesha (dict_t *dict, char **op_errstr);
 int glusterd_op_set_ganesha (dict_t *dict, char **errstr);
 int ganesha_manage_export (dict_t *dict, char *value, char **op_errstr);
-int create_export_config (char *volname, char *value, char **op_errstr);
+int manage_export_config (char *volname, char *value, char **op_errstr);
 gf_boolean_t glusterd_check_ganesha_export (glusterd_volinfo_t *volinfo);
 int stop_ganesha (char **op_errstr);
 int tear_down_cluster (gf_boolean_t run_teardown);