[0/2] block/dm: add REQ_NOWAIT support for bio-based

Message

Mike Snitzer Sept. 23, 2020, 8:06 p.m. UTC

Hi,

I got guilted into this by this Twitter exchange:
https://twitter.com/axboe/status/1308778488011337728

Started with this patchset from June and revised it:
https://patchwork.kernel.org/project/dm-devel/list/?series=297693
(dropped MD patch while doing so_.

Tested these changes with this test Jens provided:

[mikes-test-job]
filename=/dev/dm-0
rw=randread
buffered=1
ioengine=io_uring
iodepth=16
norandommap

Jens, please feel free to pickup both patches, I don't have any
conflicting DM changes for 5.10.

Thanks,
Mike

Konstantin Khlebnikov (1):
  dm: add support for REQ_NOWAIT and enable it for linear target

Mike Snitzer (1):
  block: add QUEUE_FLAG_NOWAIT

 block/blk-core.c              |  4 ++--
 drivers/md/dm-linear.c        |  5 +++--
 drivers/md/dm-table.c         | 32 ++++++++++++++++++++++++++++++++
 drivers/md/dm.c               |  4 +++-
 include/linux/blkdev.h        |  7 +++++--
 include/linux/device-mapper.h |  6 ++++++
 6 files changed, 51 insertions(+), 7 deletions(-)

Comments

Jens Axboe Sept. 25, 2020, 2:20 p.m. UTC | #1

On 9/23/20 2:06 PM, Mike Snitzer wrote:
> Hi,
> 
> I got guilted into this by this Twitter exchange:
> https://twitter.com/axboe/status/1308778488011337728
> 
> Started with this patchset from June and revised it:
> https://patchwork.kernel.org/project/dm-devel/list/?series=297693
> (dropped MD patch while doing so_.
> 
> Tested these changes with this test Jens provided:
> 
> [mikes-test-job]
> filename=/dev/dm-0
> rw=randread
> buffered=1
> ioengine=io_uring
> iodepth=16
> norandommap
> 
> Jens, please feel free to pickup both patches, I don't have any
> conflicting DM changes for 5.10.

Thanks Mike! Applied.