On 2/21/19 8:43 AM, Ming Lei wrote: > Block bounce needs to allocate new page for doing IO, and the > new page has to be updated to bvec table. > > Commit 6dc4f100c switches __blk_queue_bounce() to use the new > bio_for_each_segment_all() interface. Unfortunately the new > bio_for_each_segment_all() can't be used to update bvec table. > > This patch fixes this issue by retrieving bvec from the table > directly, then the new allocated page can be updated to the bio. > This way is safe because the cloned bio is single page bvec. Applied, thanks. -- Jens Axboe
