From 015c1bd9f162a00934dd71859f36b12d03c8e771 Mon Sep 17 00:00:00 2001 From: Liu Bo Date: Tue, 4 Apr 2017 12:23:25 -0700 Subject: [PATCH] Btrfs: use bio_clone_fast to clone our bio For raid1 and raid10, we clone the original bio to the bios which are then sent to different disks. Right now we use bio_clone_bioset to create a clone bio with iterating bi_io_vec to initialize it. This changes it to use bio_clone_fast() which creates a clone bio but only copies the bi_io_vec pointer instead of iterating bi_io_vec. Signed-off-by: Liu Bo Reviewed-by: David Sterba Signed-off-by: David Sterba --- fs/btrfs/extent_io.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 1fcfa1d9e77a..292e458b2a9d 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -2694,7 +2694,7 @@ struct bio *btrfs_bio_clone(struct bio *bio, gfp_t gfp_mask) struct btrfs_io_bio *btrfs_bio; struct bio *new; - new = bio_clone_bioset(bio, gfp_mask, btrfs_bioset); + new = bio_clone_fast(bio, gfp_mask, btrfs_bioset); if (new) { btrfs_bio = btrfs_io_bio(new); btrfs_bio->csum = NULL; -- 2.11.0