mgmt/glusterd: store option to update only snap_list.info

Change-Id: I16b17ca60b5f9b34b7d238d8a3424a3b7a1dc435
Signed-off-by: shishir gowda <sgowda@redhat.com>

1 files changed, 51 insertions, 0 deletions

diff --git a/xlators/mgmt/glusterd/src/glusterd-store.c b/xlators/mgmt/glusterd/src/glusterd-store.c
index bbff2f4bb..70c50803f 100644
--- a/xlators/mgmt/glusterd/src/glusterd-store.c
+++ b/xlators/mgmt/glusterd/src/glusterd-store.c
@@ -1385,6 +1385,57 @@ unlock:
 }
 
 int32_t
+glusterd_store_perform_snap_list_store (glusterd_volinfo_t *volinfo)
+{
+        int                         fd = -1;
+        int32_t                     ret = -1;
+        glusterd_snap_t            *entry = NULL;
+        glusterd_snap_t            *tmp = NULL;
+        uint64_t                    count = 0;
+        char                        buf[PATH_MAX] = {0,};
+
+        GF_ASSERT (volinfo);
+
+        ret = glusterd_store_create_snap_list_sh_on_absence (volinfo);
+        if (ret)
+                goto out;
+        fd = gf_store_mkstemp (volinfo->snap_list_shandle);
+        if (fd <= 0) {
+                ret = -1;
+                goto out;
+        }
+
+        LOCK (&volinfo->lock);
+        {
+                list_for_each_entry_safe (entry, tmp, &volinfo->snaps,
+                                          snap_list) {
+                        ret = glusterd_store_snap_list_write (fd, entry, count);
+                        if (ret)
+                                goto unlock;
+                        count++;
+                }
+                snprintf (buf, sizeof(buf), "%"PRIu64, count);
+                ret = gf_store_save_value (fd, GLUSTERD_STORE_KEY_SNAP_COUNT,
+                                           buf);
+                if (ret)
+                        goto unlock;
+        }
+unlock:
+        UNLOCK (&volinfo->lock);
+
+        ret = gf_store_rename_tmppath (volinfo->snap_list_shandle);
+        if (ret)
+                goto out;
+
+out:
+        if (ret && (fd > 0))
+                gf_store_unlink_tmppath (volinfo->snap_list_shandle);
+        if (fd > 0)
+                close (fd);
+        gf_log (THIS->name, GF_LOG_DEBUG, "Returning %d", ret);
+        return ret;
+}
+int32_t
 glusterd_store_perform_snap_store (glusterd_volinfo_t *volinfo)
 {
         int                         fd = -1;