Commit 233886dd authored Nov 21, 2005 by jblunck@suse.de Committed by Linus Torvalds Nov 22, 2005

[PATCH] device-mapper snapshot: bio_list fix



bio_list_merge() should do nothing if the second list is empty - not oops.

Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

parent 640eb3b0

drivers/md/dm-bio-list.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -33,6 +33,9 @@ static inline void bio_list_add(struct bio_list bl, struct bio bio)

		static inline void bio_list_merge(struct bio_list bl, struct bio_list bl2)
		{
		if (!bl2->head)
		return;

		if (bl->tail)
		bl->tail->bi_next = bl2->head;
		else