[PATCH BUGFIX IMPROVEMENT V3 0/9] lock, bfq: fix bugs, reduce exec time and boost performance

[Paolo Valente]

Hi,
this is the v3 of the series
https://lkml.org/lkml/2019/3/10/138
that fixes some bug affecting performance, reduces execution time a
little bit, and boosts throughput and responsiveness.

The difference w.r.t. v2 are new fixes to the patch "block, bfq: print
SHARED instead of pid for shared queues in logs", after patient checks
and suggestions by Holger and Oleksandr.

Thanks,
Paolo

Francesco Pollicino (2):
  block, bfq: print SHARED instead of pid for shared queues in logs
  block, bfq: save & resume weight on a queue merge/split

Paolo Valente (7):
  block, bfq: increase idling for weight-raised queues
  block, bfq: do not idle for lowest-weight queues
  block, bfq: tune service injection basing on request service times
  block, bfq: do not merge queues on flash storage with queueing
  block, bfq: do not tag totally seeky queues as soft rt
  block, bfq: always protect newly-created queues from existing active
    queues
  doc, block, bfq: add information on bfq execution time

 Documentation/block/bfq-iosched.txt |  29 +-
 block/bfq-cgroup.c                  |   3 +-
 block/bfq-iosched.c                 | 786 +++++++++++++++++++++++-----
 block/bfq-iosched.h                 |  92 ++--
 block/bfq-wf2q.c                    |   2 +-
 5 files changed, 729 insertions(+), 183 deletions(-)

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2.20.1