From: Davidlohr Bueso <dave@xxxxxxxxxxxx> * THIS IS A HACK * Directly call down_write() on i_mmap_rwsem (such that we don't have to convert it to a range lock) Signed-off-by: Davidlohr Bueso <dbueso@xxxxxxx> --- mm/mmap.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/mmap.c b/mm/mmap.c index e10d005f7e2f..1d3a5edd19b2 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -3394,7 +3394,7 @@ 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_nest_lock(&anon_vma->root->rwsem, &mm->mmap_sem); + down_write(&anon_vma->root->rwsem); /* * We can safely modify head.next after taking the * anon_vma->root->rwsem. If some other vma in this mm shares @@ -3424,7 +3424,7 @@ static void vm_lock_mapping(struct mm_struct *mm, struct address_space *mapping) */ if (test_and_set_bit(AS_MM_ALL_LOCKS, &mapping->flags)) BUG(); - down_write_nest_lock(&mapping->i_mmap_rwsem, &mm->mmap_sem); + down_write(&mapping->i_mmap_rwsem); } } -- 2.13.6 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
