From: Kurt Hackel <kurt.hackel@oracle.com>
Date: Fri, 28 Apr 2006 00:58:23 +0000 (-0700)
Subject: ocfs2: add a small delay after a failed migration
X-Git-Tag: v3.12-rc1~35369^2~48
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8d79d088e88198d5456861ee9e6a8226dcd08799;p=kernel%2Fkernel-generic.git

ocfs2: add a small delay after a failed migration

Otherwise we risk starving other threads.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
---

diff --git a/fs/ocfs2/dlm/dlmthread.c b/fs/ocfs2/dlm/dlmthread.c
index 44d3b57..22bb58a 100644
--- a/fs/ocfs2/dlm/dlmthread.c
+++ b/fs/ocfs2/dlm/dlmthread.c
@@ -39,6 +39,7 @@
 #include <linux/inet.h>
 #include <linux/timer.h>
 #include <linux/kthread.h>
+#include <linux/delay.h>
 
 
 #include "cluster/heartbeat.h"
@@ -165,6 +166,7 @@ again:
 	} else if (ret < 0) {
 		mlog(ML_NOTICE, "lockres %.*s: migrate failed, retrying\n",
 		     lockres->lockname.len, lockres->lockname.name);
+		msleep(100);
 		goto again;
 	}
 
@@ -640,8 +642,9 @@ static int dlm_thread(void *data)
 			 * spinlock and do NOT have the dlm lock.
 			 * safe to reserve/queue asts and run the lists. */
 
-			mlog(0, "calling dlm_shuffle_lists with dlm=%p, "
-			     "res=%p\n", dlm, res);
+			mlog(0, "calling dlm_shuffle_lists with dlm=%s, "
+			     "res=%.*s\n", dlm->name,
+			     res->lockname.len, res->lockname.name);
 
 			/* called while holding lockres lock */
 			dlm_shuffle_lists(dlm, res);