linux-kernel - Re: [PATCH] block: rate-limit capacity change info log

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Message-ID: <62086c8d-ca48-4d97-bb73-e991ecb3523c@gmail.com>
Date: Mon, 17 Nov 2025 10:24:48 -0800
From: Chaitanya Kulkarni <ckulkarnilinux@...il.com>
To: Li Chen <me@...ux.beauty>, Jens Axboe <axboe@...nel.dk>,
 linux-block@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: stable@...r.kernel.org
Subject: Re: [PATCH] block: rate-limit capacity change info log

On 11/16/25 21:34, Li Chen wrote:
> From: Li Chen<chenl311@...natelecom.cn>
>
> loop devices under heavy stress-ng loop streessor can trigger many
> capacity change events in a short time. Each event prints an info
> message from set_capacity_and_notify(), flooding the console and
> contributing to soft lockups on slow consoles.
>
> Switch the printk in set_capacity_and_notify() to
> pr_info_ratelimited() so frequent capacity changes do not spam
> the log while still reporting occasional changes.
>
> Cc:stable@...r.kernel.org
> Signed-off-by: Li Chen<chenl311@...natelecom.cn>



Looks good.

Reviewed-by: Chaitanya Kulkarni <kch@...dia.com>

-ck