Messages in this thread Patch in this message | | | Date | Mon, 21 Jun 2010 16:33:37 -0400 | From | Rik van Riel <> | Subject | [PATCH -mm 1/6] mmap: remove unnecessary lock from __vma_link |
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From: Andrea Arcangeli <aarcange@redhat.com> Subject: remove unnecessary lock from __vma_link
There's no anon-vma related mangling happening inside __vma_link anymore so no need of anon_vma locking there.
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Rik van Riel <riel@redhat.com> ---
diff --git a/mm/mmap.c b/mm/mmap.c --- a/mm/mmap.c +++ b/mm/mmap.c @@ -469,12 +469,10 @@ static void vma_link(struct mm_struct *m spin_lock(&mapping->i_mmap_lock); vma->vm_truncate_count = mapping->truncate_count; } - vma_lock_anon_vma(vma); __vma_link(mm, vma, prev, rb_link, rb_parent); __vma_link_file(vma); - vma_unlock_anon_vma(vma); if (mapping) spin_unlock(&mapping->i_mmap_lock);
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