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

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

include/linux/bio.h | 6 ++++++ block/bio.c | 47 +++++++++++++++++++++++++++++++++++++++------ drivers/md/dm.c | 6 +++--- 3 files changed, 50 insertions(+), 9 deletions(-)