On Wed, Jun 23 2021 at 3:40P -0400, Ming Lei <ming.lei@xxxxxxxxxx> wrote: > Hello Guys, > > Based on Christoph's bio based polling model[1], implement DM bio polling > with one very simple approach. > > Patch 1 adds helper of blk_queue_poll(). > > Patch 2 adds .bio_poll() callback to block_device_operations, so bio > driver can implement its own logic for io polling. > > Patch 3 implements bio polling for device mapper. > > > V3: > - patch style change as suggested by Christoph(2/3) > - fix kernel panic issue caused by nested dm polling, which is found > & figured out by Jeffle Xu (3/3) > - re-organize setup polling code (3/3) > - remove RFC > > V2: > - drop patch to add new fields into bio > - support io polling for dm native bio splitting > - add comment > > Ming Lei (3): > block: add helper of blk_queue_poll > block: add ->poll_bio to block_device_operations > dm: support bio polling > > block/blk-core.c | 18 +++--- > block/blk-sysfs.c | 4 +- > block/genhd.c | 2 + > drivers/md/dm-table.c | 24 +++++++ > drivers/md/dm.c | 131 ++++++++++++++++++++++++++++++++++++++- > drivers/nvme/host/core.c | 2 +- > include/linux/blkdev.h | 2 + > 7 files changed, 170 insertions(+), 13 deletions(-) > > -- > 2.31.1 > Hey Ming, I'd like us to follow-through with adding bio-based polling support. Kind of strange none of us that were sent this V3 ever responded, sorry about that! Do you have interest in rebasing this patchset (against linux-dm.git's "dm-5.18" branch since there has been quite some churn)? Or are you OK with me doing the rebase? thanks, Mike
