From: Andrea Arcangeli <aarcange@xxxxxxxxxx> 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@xxxxxxxxxx> Signed-off-by: Rik van Riel <riel@xxxxxxxxxx> --- 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); -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>