From: Bart Van Assche <bvanassche@acm.org>
To: Wu Bo <bo.wu@vivo.com>
Cc: axboe@kernel.dk, dlemoal@kernel.org, linux-block@vger.kernel.org,
linux-kernel@vger.kernel.org, stable@vger.kernel.org,
wubo.oduw@gmail.com
Subject: Re: [PATCH stable] block/mq-deadline: fix different priority request on the same zone
Date: Fri, 17 May 2024 10:53:35 -0700 [thread overview]
Message-ID: <a1da2c7e-1b29-49cf-a45f-255d3b8b0da2@acm.org> (raw)
In-Reply-To: <20240517014456.1919588-1-bo.wu@vivo.com>
On 5/16/24 18:44, Wu Bo wrote:
> So I figured this solution to fix this priority issue on zoned device. It sure
> raises the overhead but can do fix it.
Something I should have realized earlier is that this patch is not
necessary with the latest upstream kernel (v6.10-rc1). Damien's zoned
write plugging patch series has been merged. Hence, I/O schedulers,
including the mq-deadline I/O schedulers, will only see a single
zoned write at a time per zone. So it is no longer possible that
zoned writes are reordered by the I/O scheduler because of their I/O
priorities.
Thanks,
Bart.
next prev parent reply other threads:[~2024-05-17 17:53 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-16 9:28 [PATCH stable] block/mq-deadline: fix different priority request on the same zone Wu Bo
2024-05-16 13:45 ` Bart Van Assche
2024-05-17 1:44 ` Wu Bo
2024-05-17 17:53 ` Bart Van Assche [this message]
2024-05-18 0:52 ` Wu Bo
2024-05-18 2:14 ` Bart Van Assche
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