On 2021/08/06 10:08, Yu Kuai wrote:

Chagnes in V2:
  - as suggested by Paolo, add support to track if root_group have any
  pending requests, and use that to handle the situation when only one
  group is activated while root group doesn't have any pending requests.
  - modify commit message in patch 2

Yu Kuai (4):
   block, bfq: add support to track if root_group have any pending
     requests
   block, bfq: do not idle if only one cgroup is activated
   block, bfq: add support to record request size information
   block, bfq: consider request size in bfq_asymmetric_scenario()

  block/bfq-iosched.c | 69 ++++++++++++++++++++++++++++++++++++++-------
  block/bfq-iosched.h | 29 +++++++++++++++++--
  block/bfq-wf2q.c    | 37 +++++++++++++++---------
  3 files changed, 110 insertions(+), 25 deletions(-)

ping ...