linux-kernel - [PATCH 2/2] workqueues: export keventd

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Message-ID: <20100429194545.GC17280@redhat.com>
Date:	Thu, 29 Apr 2010 21:45:45 +0200
From:	Oleg Nesterov <oleg@...hat.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>, Tejun Heo <tj@...nel.org>
Cc:	Arve Hjønnevåg <arve@...roid.com>,
	linux-pm@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
	Alan Stern <stern@...land.harvard.edu>,
	Pavel Machek <pavel@....cz>, Len Brown <len.brown@...el.com>
Subject: [PATCH 2/2] workqueues: export keventd_wq

Export keventd_wq. Otherwise, any helper on top of queue_work() has
to be copy-and-pasted to create the version which uses keventd_wq.

Note: we can do more cleanups with this change and kill EXPORT_SYMBOLs,
almost any function which currently uses keventd_wq can become the
trivial inline.

Signed-off-by: Oleg Nesterov <oleg@...hat.com>
---

 include/linux/workqueue.h |    1 +
 kernel/workqueue.c        |    3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

--- 34-rc1/include/linux/workqueue.h~EXPORT_KEVENT_WQ	2009-12-18 19:05:38.000000000 +0100
+++ 34-rc1/include/linux/workqueue.h	2010-04-29 21:25:12.000000000 +0200
@@ -12,6 +12,7 @@
 #include <asm/atomic.h>
 
 struct workqueue_struct;
+extern struct workqueue_struct *keventd_wq;
 
 struct work_struct;
 typedef void (*work_func_t)(struct work_struct *work);
--- 34-rc1/kernel/workqueue.c~EXPORT_KEVENT_WQ	2010-04-29 21:08:32.000000000 +0200
+++ 34-rc1/kernel/workqueue.c	2010-04-29 21:23:46.000000000 +0200
@@ -717,7 +717,8 @@ int cancel_delayed_work_sync(struct dela
 }
 EXPORT_SYMBOL(cancel_delayed_work_sync);
 
-static struct workqueue_struct *keventd_wq __read_mostly;
+struct workqueue_struct *keventd_wq __read_mostly;
+EXPORT_SYMBOL(keventd_wq);
 
 /**
  * schedule_work - put work task in global workqueue

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