linux-kernel - [PATCH BUGFIX] block, bfq: fix bug causing crashes

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Message-Id: <20170703080010.1709-1-paolo.valente@linaro.org>
Date:   Mon,  3 Jul 2017 10:00:09 +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,
        Paolo Valente <paolo.valente@...aro.org>
Subject: [PATCH BUGFIX] block, bfq: fix bug causing crashes

Hi Jens,
I'm writing this short cover letter to hopefully help you decide what
to do with this patch, in this late phase of the development
cycle. This patch fixes a bug causing kernel crashes for at least
one year. Crashes apparently affect only a minority of users, but are
systematic for them (a crash every few tens of minutes for some).

Thanks,
Paolo

Paolo Valente (1):
  block, bfq: don't change ioprio class for a bfq_queue on a service
    tree

 block/bfq-iosched.c | 14 ++++++++++----
 block/bfq-iosched.h |  3 ++-
 block/bfq-wf2q.c    | 39 ++++++++++++++++++++++++++++++++++-----
 3 files changed, 46 insertions(+), 10 deletions(-)

--
2.10.0