Re: [PATCH 0/8] dm: io accounting & polling improvement

Mike Snitzer
2022-04-12T17:15:38Z

On Tue, Apr 12 2022 at 4:56P -0400,
Ming Lei <ming.lei@redhat.com> wrote:

> Hello Guys,
>
> The 1st patch adds bdev based io accounting interface.
>
> The 2nd ~ 5th patches improves dm's io accounting & split, meantime
> fixes kernel panic on dm-zone.
>
> The other patches improves io polling & dm io reference handling.
>
>
> Ming Lei (8):
> block: replace disk based account with bdev's
> dm: don't pass bio to __dm_start_io_acct and dm_end_io_acct
> dm: pass 'dm_io' instance to dm_io_acct directly
> dm: switch to bdev based io accounting interface
> dm: always setup ->orig_bio in alloc_io
> dm: don't grab target io reference in dm_zone_map_bio
> dm: improve target io referencing
> dm: put all polled io into one single list
>
> block/blk-core.c | 15 +--
> drivers/block/zram/zram_drv.c | 5 +-
> drivers/md/dm-core.h | 17 ++-
> drivers/md/dm-zone.c | 10 --
> drivers/md/dm.c | 190 +++++++++++++++++++---------------
> include/linux/blkdev.h | 7 +-
> 6 files changed, 131 insertions(+), 113 deletions(-)
>
> --
> 2.31.1
>

I'll review this closely but, a couple weeks ago, I queued up quite a
lot of conflicting changes for 5.19 here: