Commit e1b4b44e authored by Christoph Hellwig's avatar Christoph Hellwig Committed by David Sterba
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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: default avatarQu Wenruo <wqu@suse.com>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent e01bf588

fs/btrfs/raid56.c

+2 −5
Original line number Diff line number Diff line
@@ -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;