linux-kernel - linux-next: build failure after merge of the final tree (akpm tree related)

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Date:	Wed, 28 Sep 2011 20:01:14 +1000
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Andi Kleen <ak@...ux.intel.com>
Subject: linux-next: build failure after merge of the final tree (akpm tree
 related)

Hi all,

After merging the final tree, today's linux-next build (sparc32 defconfig)
failed like this:

fs/direct-io.c: In function '__blockdev_direct_IO':
fs/direct-io.c:1327:2: error: implicit declaration of function 'prefetch'

Caused by commit 30ddb4d48213 ("dio: optimize cache misses in the
submission path").

I have added this patch for today:

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Wed, 28 Sep 2011 19:58:28 +1000
Subject: [PATCH] dio: using prefetch requires including prefetch.h

Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 fs/direct-io.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/fs/direct-io.c b/fs/direct-io.c
index a05ca05..8d22849 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -36,6 +36,7 @@
 #include <linux/rwsem.h>
 #include <linux/uio.h>
 #include <linux/atomic.h>
+#include <linux/prefetch.h>
 
 /*
  * How many user pages to map in one call to get_user_pages().  This determines
-- 
1.7.6.3

-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au
http://www.canb.auug.org.au/~sfr/
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