Message-ID: <4B20277B.1030903@hp.com>
Date: Wed, 09 Dec 2009 17:40:59 -0500
From: jim owens <jowens@hp.com>
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To: linux-mm@kvack.org
CC: Andrew Morton <akpm@linux-foundation.org>,
       LKML <linux-kernel@vger.kernel.org>, mst@redhat.com,
       linux-fsdevel <linux-fsdevel@vger.kernel.org>
Subject: [PATCH] export use_mm and unuse_mm for filesystem modules.
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required for btrfs directio worker threads.

Signed-off-by: jim owens <jowens@hp.com>
---
 mm/mmu_context.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/mm/mmu_context.c b/mm/mmu_context.c
index ded9081..daabf4d 100644
--- a/mm/mmu_context.c
+++ b/mm/mmu_context.c
@@ -3,6 +3,7 @@
  * See ../COPYING for licensing terms.
  */
 
+#include <linux/module.h>
 #include <linux/mm.h>
 #include <linux/mmu_context.h>
 #include <linux/sched.h>
@@ -37,6 +38,7 @@ void use_mm(struct mm_struct *mm)
 	if (active_mm != mm)
 		mmdrop(active_mm);
 }
+EXPORT_SYMBOL_GPL(use_mm);
 
 /*
  * unuse_mm
@@ -56,3 +58,4 @@ void unuse_mm(struct mm_struct *mm)
 	enter_lazy_tlb(mm, tsk);
 	task_unlock(tsk);
 }
+EXPORT_SYMBOL_GPL(unuse_mm);
-- 
1.5.6.3
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