This is a resend of my series of patches working towards removing the bioset work queues. This set is based on for-4.13/block. It incorporates the revised versions of all the patches that were resent following feedback on the last set. It also includes a minor grammatic improvement to a comment, and simple changes to compensate for a couple of changes to the block tree since the last posting. I hope to eventually get rid of the new BIOSET_NEED_RESCUER flag, but that needs work in dm and probably bcache first. Thanks, NeilBrown --- NeilBrown (13): blk: remove bio_set arg from blk_queue_split() blk: replace bioset_create_nobvec() with a flags arg to bioset_create() blk: make the bioset rescue_workqueue optional. blk: use non-rescuing bioset for q->bio_split. block: Improvements to bounce-buffer handling rbd: use bio_clone_fast() instead of bio_clone() drbd: use bio_clone_fast() instead of bio_clone() pktcdvd: use bio_clone_fast() instead of bio_clone() lightnvm/pblk-read: use bio_clone_fast() xen-blkfront: remove bio splitting. bcache: use kmalloc to allocate bio in bch_data_verify() block: remove bio_clone() and all references. block: don't check for BIO_MAX_PAGES in blk_bio_segment_split() Documentation/block/biodoc.txt | 2 - block/bio.c | 73 ++++++++++++++++------------------- block/blk-core.c | 4 +- block/blk-merge.c | 31 ++------------- block/blk-mq.c | 2 - block/bounce.c | 32 ++++++++++++--- drivers/block/drbd/drbd_int.h | 3 + drivers/block/drbd/drbd_main.c | 13 ++++++ drivers/block/drbd/drbd_req.c | 2 - drivers/block/drbd/drbd_req.h | 2 - drivers/block/pktcdvd.c | 14 +++++-- drivers/block/ps3vram.c | 2 - drivers/block/rbd.c | 16 +++++++- drivers/block/rsxx/dev.c | 2 - drivers/block/umem.c | 2 - drivers/block/xen-blkfront.c | 54 +------------------------- drivers/lightnvm/pblk-init.c | 16 ++++++-- drivers/lightnvm/pblk-read.c | 2 - drivers/lightnvm/pblk.h | 1 drivers/lightnvm/rrpc.c | 2 - drivers/md/bcache/debug.c | 2 - drivers/md/bcache/super.c | 8 +++- drivers/md/dm-crypt.c | 3 + drivers/md/dm-io.c | 3 + drivers/md/dm.c | 5 +- drivers/md/md.c | 6 +-- drivers/md/raid1.c | 2 - drivers/md/raid10.c | 2 - drivers/md/raid5-cache.c | 2 - drivers/md/raid5-ppl.c | 2 - drivers/md/raid5.c | 2 - drivers/s390/block/dcssblk.c | 2 - drivers/s390/block/xpram.c | 2 - drivers/target/target_core_iblock.c | 2 - fs/block_dev.c | 2 - fs/btrfs/extent_io.c | 3 + fs/xfs/xfs_super.c | 3 + include/linux/bio.h | 12 ++---- include/linux/blkdev.h | 3 - 39 files changed, 168 insertions(+), 173 deletions(-) -- Signature