ocfs2/cluster: Make fence method configurable - v2

[firefly-linux-kernel-4.4.55.git] / fs / ocfs2 / cluster / quorum.c

diff --git a/fs/ocfs2/cluster/quorum.c b/fs/ocfs2/cluster/quorum.c
index 4705d659fe576e8bbc89561232d7f6447b1efa16..639024033fceeea6cc5978bcdcf3c3a65f216986 100644 (file)
--- a/fs/ocfs2/cluster/quorum.c
+++ b/fs/ocfs2/cluster/quorum.c
@@ -46,6 +46,7 @@
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/workqueue.h>
+#include <linux/reboot.h>
 
 #include "heartbeat.h"
 #include "nodemanager.h"
@@ -72,7 +73,21 @@ static void o2quo_fence_self(void)
        /* panic spins with interrupts enabled.  with preempt
         * threads can still schedule, etc, etc */
        o2hb_stop_all_regions();
-       panic("ocfs2 is very sorry to be fencing this system by panicing\n");
+
+       switch (o2nm_single_cluster->cl_fence_method) {
+       case O2NM_FENCE_PANIC:
+               panic("*** ocfs2 is very sorry to be fencing this system by "
+                     "panicing ***\n");
+               break;
+       default:
+               WARN_ON(o2nm_single_cluster->cl_fence_method >=
+                       O2NM_FENCE_METHODS);
+       case O2NM_FENCE_RESET:
+               printk(KERN_ERR "*** ocfs2 is very sorry to be fencing this "
+                      "system by restarting ***\n");
+               emergency_restart();
+               break;
+       };
 }
 
 /* Indicate that a timeout occured on a hearbeat region write. The