From e1b4b44e005e2eeef63081fe0a79a6271f81fce4 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 4 Apr 2022 06:45:26 +0200 Subject: [PATCH] btrfs: don't allocate a btrfs_bio for raid56 per-stripe bios Except for the spurious initialization of ->device just after allocation nothing uses the btrfs_bio, so just allocate a normal bio without extra data. Reviewed-by: Qu Wenruo Signed-off-by: Christoph Hellwig Reviewed-by: David Sterba Signed-off-by: David Sterba --- fs/btrfs/raid56.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c index e0f881e..ca53f07 100644 --- a/fs/btrfs/raid56.c +++ b/fs/btrfs/raid56.c @@ -1082,11 +1082,8 @@ static int rbio_add_io_page(struct btrfs_raid_bio *rbio, } /* put a new bio on the list */ - bio = btrfs_bio_alloc(bio_max_len >> PAGE_SHIFT ?: 1); - btrfs_bio(bio)->device = stripe->dev; - bio->bi_iter.bi_size = 0; - bio_set_dev(bio, stripe->dev->bdev); - bio->bi_opf = opf; + bio = bio_alloc(stripe->dev->bdev, max(bio_max_len >> PAGE_SHIFT, 1UL), + opf, GFP_NOFS); bio->bi_iter.bi_sector = disk_start >> 9; bio->bi_private = rbio; -- 2.7.4