Commit 8001e87d authored Nov 24, 2014 by Joe Thornber Committed by Mike Snitzer Dec 01, 2014

dm array: if resizing the array is a noop set the new root to the old one



This could've been quite bad (to return success but not update the new
root to point at the old) but in practice the only known consumer of the
dm array code is the DM cache target.  And the DM cache target passes in
the same old root to array_resize() anyway.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

parent a12f5d48

drivers/md/persistent-data/dm-array.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -645,8 +645,10 @@ static int array_resize(struct dm_array_info *info, dm_block_t root,
		int r;
		struct resize resize;

		if (old_size == new_size)
		if (old_size == new_size) {
		*new_root = root;
		return 0;
		}

		resize.info = info;
		resize.root = root;