linux-kernel - Re: [PATCH 0/2] blk-mq: two fixes about updating hw queues

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Date:   Tue, 9 Oct 2018 09:41:49 +0800
From:   "jianchao.wang" <jianchao.w.wang@...cle.com>
To:     axboe@...nel.dk
Cc:     keith.busch@...ux.intel.com, ming.lei@...hat.com,
        linux-block@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/2] blk-mq: two fixes about updating hw queues

Would anyone please take a look at this patch ?

Thanks in advance
Jianchao

On 09/27/2018 06:43 PM, Jianchao Wang wrote:
> Hi Jens
> 
> This patch set fixes two defects during update hw queues.
> 
> 1st patch refactor the blk-mq debugfs and sysfs register during
> blk_mq_update_nr_hw_queues.
> 
> 2nd patch should be able to fix the panic reported in follwing link
> https://urldefense.proofpoint.com/v2/url?u=https-3A__marc.info_-3Fl-3Dlinux-2Dblock-26m-3D153799465603723-26w-3D2&d=DwIBAg&c=RoP1YumCXCgaWHvlZYR8PZh8Bv7qIrMUB65eapI_JnE&r=7WdAxUBeiTUTCy8v-7zXyr4qk7sx26ATvfo6QSTvZyQ&m=JoGIFiPF4RF8WH8rquW8Qswr2FYvPOVaTxlgmjKHsDk&s=TQn_KiIX2sfmXP_9IYy2IFFRxBj4jBKVaSSU-I1z9g8&e=
> 
> Jianchao Wang (2)
> blk-mq: adjust debugfs and sysfs register when updating nr_hw_queues
> blk-mq: fallback to previous nr_hw_queues when updating fails
> 
> block/blk-mq.c | 79 ++++++++++++++++++++++++++++++++++------------------------
> 1 file changed, 47 insertions(+), 32 deletions(-)
> 
> Thanks
> Jianchao
>