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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-01-25 13:27:36 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-01-25 13:27:36 -0800
commit9f9cba810f36d16f4e64477e879a69f6c47b389d (patch)
treed787abcbead1439d3f82f0719efe520fd9689f79 /mm/mmap.c
parentdbf5bef8da169b38db804996a661f8d634df8295 (diff)
parent949db153b6466c6f7cad5a427ecea94985927311 (diff)
Merge 3.8-rc5 into tty-next
This resolves a number of tty driver merge issues found in linux-next 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