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

Ming Lei
2022-04-12T10:12:06Z

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(-)

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2.31.1