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authorOlof Johansson <olof@lixom.net>2013-02-04 22:56:41 -0800
committerOlof Johansson <olof@lixom.net>2013-02-04 22:56:41 -0800
commit469da62096e23adc755c1268b00b5fc7a214151b (patch)
treefefd055fdae584e38d551f44d1339eb22cee4ed9 /mm/mmap.c
parent4227961650884a06757f80877d5dce0bddc723d4 (diff)
parent88b62b915b0b7e25870eb0604ed9a92ba4bfc9f7 (diff)
downloadlinux-stable-469da62096e23adc755c1268b00b5fc7a214151b.tar.gz
Merge tag 'v3.8-rc6' into next/soc
Linux 3.8-rc6
Diffstat (limited to 'mm/mmap.c')
-rw-r--r--mm/mmap.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/mmap.c b/mm/mmap.c
index f54b235f29a9..35730ee9d515 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -2886,7 +2886,7 @@ static void vm_lock_anon_vma(struct mm_struct *mm, struct anon_vma *anon_vma)
* The LSB of head.next can't change from under us
* because we hold the mm_all_locks_mutex.
*/
- down_write(&anon_vma->root->rwsem);
+ down_write_nest_lock(&anon_vma->root->rwsem, &mm->mmap_sem);
/*
* We can safely modify head.next after taking the
* anon_vma->root->rwsem. If some other vma in this mm shares