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From: Greg KH on 11 Aug 2010 20:00
2.6.27-stable review patch. If anyone has any objections, please let us know.

------------------

From: Andrew Morton <akpm(a)linux-foundation.org>

commit 69fc208be5b7eb18d22d1eca185b201400fd5ffc upstream.

On second thoughts, this is just going to disturb people while telling us
things which we already knew.

Cc: Peter Korsgaard <jacmet(a)sunsite.dk>
Cc: Peter Zijlstra <a.p.zijlstra(a)chello.nl>
Cc: Kay Sievers <kay.sievers(a)vrfy.org>
Cc: David Woodhouse <dwmw2(a)infradead.org>
Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds(a)linux-foundation.org>
Cc: Ben Hutchings <bhutchings(a)solarflare.com>
Signed-off-by: Greg Kroah-Hartman <gregkh(a)suse.de>

---
mm/backing-dev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -176,7 +176,7 @@ int bdi_register(struct backing_dev_info
int ret = 0;
struct device *dev;

- if (WARN_ON(bdi->dev))
+ if (bdi->dev) /* The driver needs to use separate queues per device */
goto exit;

va_start(args, fmt);


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