From: Oleg Nesterov <oleg@tv-sign.ru>
Date: Thu, 17 May 2007 05:11:11 +0000 (-0700)
Subject: make freezeable workqueues singlethread
X-Git-Tag: v2.6.22-rc2~45
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e3dfd2964ea86ae65f511b10d62ea54d46db3708;p=linux-2.6

make freezeable workqueues singlethread

It is a known fact that freezeable multithreaded workqueues doesn't like
CPU_DEAD. We keep them only for the incoming CPU-hotplug rework.

Sadly, we can't just kill create_freezeable_workqueue() right now, make
them singlethread.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Gautham R Shenoy <ego@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index d555f31c07..7eae8665ff 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -122,7 +122,7 @@ extern struct workqueue_struct *__create_workqueue(const char *name,
 						    int singlethread,
 						    int freezeable);
 #define create_workqueue(name) __create_workqueue((name), 0, 0)
-#define create_freezeable_workqueue(name) __create_workqueue((name), 0, 1)
+#define create_freezeable_workqueue(name) __create_workqueue((name), 1, 1)
 #define create_singlethread_workqueue(name) __create_workqueue((name), 1, 0)
 
 extern void destroy_workqueue(struct workqueue_struct *wq);