public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: <Sharp.Xia@mediatek.com>
To: <wenchao.chen666@gmail.com>
Cc: <Sharp.Xia@mediatek.com>,
	<angelogioacchino.delregno@collabora.com>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>,
	<linux-mediatek@lists.infradead.org>, <linux-mmc@vger.kernel.org>,
	<matthias.bgg@gmail.com>, <shawn.lin@rock-chips.com>,
	<ulf.hansson@linaro.org>, <wsd_upstream@mediatek.com>
Subject: Re: [PATCH 1/1] mmc: Set optimal I/O size when mmc_setip_queue
Date: Sun, 27 Aug 2023 00:54:54 +0800	[thread overview]
Message-ID: <20230826165454.1196-1-Sharp.Xia@mediatek.com> (raw)
In-Reply-To: <CA+Da2qxaCJwZhn0C7VxZzx8TB1VDR_xa2P0cDXUaNA9=YzSJYg@mail.gmail.com>

On Fri, 2023-08-25 at 20:23 +0800, Wenchao Chen wrote:
> 
> 
> Hi Sharp
> Use "echo 1024 > sys/block/mmcblk0/queue/read_ahead_kb" instead of
> "blk_queue_io_opt(mq->queue, host->max_req_size);"？

Hi Wenchao,

User space does not know the max_req_size of each mmc host.
And when the SD card is hot inserted,
it is complicated for the user space to modify this value.


  reply	other threads:[~2023-08-26 17:13 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-18  2:28 [PATCH 1/1] mmc: Set optimal I/O size when mmc_setip_queue Sharp.Xia
2023-08-24 10:55 ` Ulf Hansson
2023-08-25  7:10   ` Sharp Xia (夏宇彬)
2023-08-25  8:11     ` Shawn Lin
2023-08-25  8:39       ` Sharp.Xia
2023-08-25  9:17         ` Shawn Lin
2023-08-26 16:26           ` Sharp.Xia
2023-08-28  2:27             ` Shawn Lin
2023-08-28  9:04               ` Ulf Hansson
2023-08-25 12:23         ` Wenchao Chen
2023-08-26 16:54           ` Sharp.Xia [this message]
2023-08-25  7:25   ` Sharp.Xia
2023-08-25  7:26   ` Sharp.Xia

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20230826165454.1196-1-Sharp.Xia@mediatek.com \
    --to=sharp.xia@mediatek.com \
    --cc=angelogioacchino.delregno@collabora.com \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mediatek@lists.infradead.org \
    --cc=linux-mmc@vger.kernel.org \
    --cc=matthias.bgg@gmail.com \
    --cc=shawn.lin@rock-chips.com \
    --cc=ulf.hansson@linaro.org \
    --cc=wenchao.chen666@gmail.com \
    --cc=wsd_upstream@mediatek.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox