linux-kernel - [PATCH BUGFIX RESEND 0/4] bfq: fix bugs breaking bandwidth guarantees occasionally

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20180625195537.7769-1-paolo.valente@linaro.org>
Date:   Mon, 25 Jun 2018 21:55:33 +0200
From:   Paolo Valente <paolo.valente@...aro.org>
To:     Jens Axboe <axboe@...nel.dk>
Cc:     linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        ulf.hansson@...aro.org, broonie@...nel.org,
        linus.walleij@...aro.org, bfq-iosched@...glegroups.com,
        oleksandr@...alenko.name, Paolo Valente <paolo.valente@...aro.org>
Subject: [PATCH BUGFIX RESEND 0/4] bfq: fix bugs breaking bandwidth guarantees occasionally

Hi,
during some bandwidth tests, I found some occasional but severe
malfunctions (losses of bandwidth control). The first three patches in
this series fix the bugs that caused these malfunctions. The last
patch is a fix/improvement of the name of one of the functions
involved with these bugs.

I guess these patches are appropriate for next kernel release.

Thanks,
Paolo

Paolo Valente (4):
  block, bfq: add/remove entity weights correctly
  block, bfq: do not expire a queue that will deserve dispatch plugging
  block, bfq: fix service being wrongly set to zero in case of
    preemption
  block, bfq: give a better name to bfq_bfqq_may_idle

 block/bfq-iosched.c | 131 +++++++++++++++++++++++++++++++++++++++++++---------
 block/bfq-iosched.h |   7 ++-
 block/bfq-wf2q.c    |  30 ++++++------
 3 files changed, 128 insertions(+), 40 deletions(-)

--
2.16.1