Commit 79e15ae4 authored by Alasdair G Kergon's avatar Alasdair G Kergon Committed by Linus Torvalds
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dm: bio_list prefetch removal 



Remove dubious prefetch from bio_list_for_each() macro.

Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: default avatarAlasdair G Kergon <agk@redhat.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 4aabab21

drivers/md/dm-bio-list.h

+1 −3
Original line number Diff line number Diff line
@@ -8,7 +8,6 @@ 
#define DM_BIO_LIST_H



#include <linux/bio.h>

#include <linux/prefetch.h>



struct bio_list {

	struct bio *head;
@@ -31,8 +30,7 @@ static inline void bio_list_init(struct bio_list *bl) 
}



#define bio_list_for_each(bio, bl) \

	for (bio = (bl)->head; bio && ({ prefetch(bio->bi_next); 1; }); \

	     bio = bio->bi_next)

	for (bio = (bl)->head; bio; bio = bio->bi_next)



static inline unsigned bio_list_size(const struct bio_list *bl)

{