Commit 1c751879 authored Jul 03, 2015 by Joe Thornber Committed by Mike Snitzer Jul 06, 2015

dm btree: silence lockdep lock inversion in dm_btree_del()



Allocate memory using GFP_NOIO when deleting a btree.  dm_btree_del()
can be called via an ioctl and we don't want to recurse into the FS or
block layer.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org

parent a822c83e

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

+1 −1

Original line number	Diff line number	Diff line
		@@ -255,7 +255,7 @@ int dm_btree_del(struct dm_btree_info *info, dm_block_t root)
		int r;
		struct del_stack *s;

		s = kmalloc(sizeof(*s), GFP_KERNEL);
		s = kmalloc(sizeof(*s), GFP_NOIO);
		if (!s)
		return -ENOMEM;
		s->info = info;