linux-kernel - -tip: block, mm: Fix build error in mm/memcontrol.c

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Date:	Sat, 11 Jul 2009 08:51:52 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Jens Axboe <jens.axboe@...cle.com>
Cc:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: -tip: block, mm: Fix build error in mm/memcontrol.c


Today's upstream tree build (x86, 64-bit, allyesconfig) failed with 
this build error:

    mm/memcontrol.c: In function ‘mem_cgroup_force_empty’:
    mm/memcontrol.c:1976: error: ‘BLK_RW_ASYNC’ undeclared (first use in this function)
    mm/memcontrol.c:1976: error: (Each undeclared identifier is reported only once
    mm/memcontrol.c:1976: error: for each function it appears in.)

Due to commit:

  8aa7e84: Fix congestion_wait() sync/async vs read/write confusion

Missing to include a required header file for the BLK_RW_ASYNC.

Cc: Jens Axboe <jens.axboe@...cle.com>
Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 mm/memcontrol.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index e2fa20d..708103d 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -25,6 +25,7 @@
 #include <linux/smp.h>
 #include <linux/page-flags.h>
 #include <linux/backing-dev.h>
+#include <linux/blkdev.h>
 #include <linux/bit_spinlock.h>
 #include <linux/rcupdate.h>
 #include <linux/limits.h>
--
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