process_discard_bio 1909 drivers/md/dm-cache-target.c commit_needed = process_discard_bio(cache, bio) || commit_needed; process_discard_bio 1355 drivers/md/dm-clone-target.c process_discard_bio(clone, bio); process_discard_bio 2600 drivers/md/dm-thin.c pool->process_discard = process_discard_bio; process_discard_bio 2616 drivers/md/dm-thin.c pool->process_discard = process_discard_bio;