LU-8900 snapshot: user interface for write barrier on MDT

[fs/lustre-release.git] / lustre / utils / lctl.c

diff --git a/lustre/utils/lctl.c b/lustre/utils/lctl.c
index 7af645d..5975162 100644 (file)
--- a/lustre/utils/lctl.c
+++ b/lustre/utils/lctl.c
@@ -245,6 +245,21 @@ command_t cmdlist[] = {
         "list pools and pools members\n"
         "usage: pool_list  <fsname>[.<poolname>] | <pathname>"},
 
+       /* Barrier commands */
+       {"===  Barrier ==", NULL, 0, "barrier management"},
+       {"barrier_freeze", jt_barrier_freeze, 0,
+        "freeze write barrier on MDTs\n"
+        "usage: barrier_freeze <fsname> [timeout (in seconds)]"},
+       {"barrier_thaw", jt_barrier_thaw, 0,
+        "thaw write barrier on MDTs\n"
+        "usage: barrier_thaw <fsname>"},
+       {"barrier_stat", jt_barrier_stat, 0,
+        "query write barrier status on MDTs\n"
+        "usage: barrier_stat <fsname>"},
+       {"barrier_rescan", jt_barrier_rescan, 0,
+        "rescan the system to filter out inactive MDT(s) for barrier\n"
+        "usage: barrier_rescan <fsname> [timeout (in seconds)]"},
+
        /* Nodemap commands */
        {"=== Nodemap ===", NULL, 0, "nodemap management"},
        {"nodemap_activate", jt_nodemap_activate, 0,