btrfs: support cloned bios in btree_csum_one_bio
To allow splitting bios in btrfs_submit_bio, btree_csum_one_bio needs to be able to handle cloned bios. As btree_csum_one_bio is always called before handing the bio to the block layer that is trivially done by using bio_for_each_segment instead of bio_for_each_segment_all. Also switch the function to take a btrfs_bio and use that to derive the fs_info. Reviewed-by:Josef Bacik <josef@toxicpanda.com> Reviewed-by:
Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by:
Christoph Hellwig <hch@lst.de> Reviewed-by:
David Sterba <dsterba@suse.com> Signed-off-by:
David Sterba <dsterba@suse.com>
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