From d7a1030839d35c04a620e841f406b9b2a8600041 Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Tue, 14 Feb 2017 23:29:03 +0800 Subject: md: fast clone bio in bio_clone_mddev() Firstly bio_clone_mddev() is used in raid normal I/O and isn't in resync I/O path. Secondly all the direct access to bvec table in raid happens on resync I/O except for write behind of raid1, in which we still use bio_clone() for allocating new bvec table. So this patch replaces bio_clone() with bio_clone_fast() in bio_clone_mddev(). Also kill bio_clone_mddev() and call bio_clone_fast() directly, as suggested by Christoph Hellwig. Reviewed-by: Christoph Hellwig Signed-off-by: Ming Lei Signed-off-by: Shaohua Li --- drivers/md/md.c | 7 ------- 1 file changed, 7 deletions(-) (limited to 'drivers/md/md.c') diff --git a/drivers/md/md.c b/drivers/md/md.c index 0e408bc67904..55e7e7a8714e 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -190,13 +190,6 @@ struct bio *bio_alloc_mddev(gfp_t gfp_mask, int nr_iovecs, } EXPORT_SYMBOL_GPL(bio_alloc_mddev); -struct bio *bio_clone_mddev(struct bio *bio, gfp_t gfp_mask, - struct mddev *mddev) -{ - return bio_clone_bioset(bio, gfp_mask, mddev->bio_set); -} -EXPORT_SYMBOL_GPL(bio_clone_mddev); - /* * We have a system wide 'event count' that is incremented * on any 'interesting' event, and readers of /proc/mdstat -- cgit v1.2.3