Re: [PATCH 00/13] block: assorted cleanup for bio splitting and cloning.

NeilBrown
2017-06-16T05:54:30Z

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On Thu, May 11 2017, NeilBrown wrote:

> On Tue, May 02 2017, NeilBrown wrote:
>
>> This is a revision of my series of patches working
>> towards removing the bioset work queues.
>
> Hi Jens,
> could I get some feed-back about your thoughts on this series?
> Will you apply it? When? Do I need to resend anything?
> Would you like a git-pull request? If so, what should I base it on?
> There is a minor conflict with drivers/block/zram/zram_drv.c
> as it dropped the call to blk_queue_split() recently, but otherwise it
> still applies.

Hi Jens,
I didn't hear back ... have you had a chance to look?
In case it helps, you can pull the full set, based on a recent Linus tree,
from
git://neil.brown.name/linux bioset

or I can resend the patches if you like.

Thanks,
NeilBrown

>
> Thanks,
> NeilBrown
>
>
>>
>> This set is based on Linus' tree as for today (2nd May) plus
>> the for-linus branch from Shaohua's md/raid tree.
>>
>> This series adds a fix for the new lightnvm/pblk-read code
>> and discards bioset_create_nobvec() in favor of a flag arg to
>> bioset_create(). There are also minor fixes and a little
>> code clean-up.
>>
>> I hope to eventually get rid of the new BIOSET_NEED_RESCUER flag,
>> but that needs work ing 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 | 72 ++++++++++++++++-------------------
>> 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 | 11 +++++
>> 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/block/zram/zram_drv.c | 2 -
>> 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 | 6 ++-
>> drivers/md/dm-crypt.c | 2 -
>> drivers/md/dm-io.c | 2 -
>> 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 -
>> 40 files changed, 162 insertions(+), 174 deletions(-)
>>
>> --
>> Signature

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