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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-01-18 09:17:17 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-01-18 09:17:17 -0800
commitcbf50a4125f5242dd70b1f2342dbba2d94c6d94e (patch)
treea97a067e53f32e246034fbbb07e2c0894c279391 /mm/mmap.c
parent7a8ea7ebe4cf698918e7d3c860587e815eaa0f28 (diff)
parent7d1f9aeff1ee4a20b1aeb377dd0f579fe9647619 (diff)
Merge 3.8-rc4 into usb-next
This pulls in all of the -rc4 fixes into usb-next to sync things up. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 f54b235f29a..35730ee9d51 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