[PATCH openEuler-1.0-LTS v2 0/2] use precise io accounting apis

Changes in v2: - define __generic_start/end_io_acct() as static - remove input parameters sectors of generic_start_precise_io_acct()

Li Nan (2): block: add precise io accouting apis dm: switch to precise io accounting

include/linux/bio.h | 6 ++++++ block/bio.c | 49 +++++++++++++++++++++++++++++++++++++++------ drivers/md/dm.c | 8 ++++---- 3 files changed, 53 insertions(+), 10 deletions(-)