linux-kernel - Re: [PATCH 1/5] fs/filesystems: Fix potential unsigned integer underflow in fs

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Message-ID: <6cf4c137-10cd-4d4c-b109-d87e03bda4f7@icloud.com>
Date: Fri, 11 Apr 2025 22:52:43 +0800
From: Zijun Hu <zijun_hu@...oud.com>
To: Christian Brauner <brauner@...nel.org>
Cc: Alexander Viro <viro@...iv.linux.org.uk>, Jan Kara <jack@...e.cz>,
 David Howells <dhowells@...hat.com>, linux-fsdevel@...r.kernel.org,
 linux-kernel@...r.kernel.org, Zijun Hu <quic_zijuhu@...cinc.com>
Subject: Re: [PATCH 1/5] fs/filesystems: Fix potential unsigned integer
 underflow in fs_name()

On 2025/4/11 22:35, Christian Brauner wrote:
>> Fix by breaking the for loop when '@...ex == 0' which is also more proper
>> than '@...ex <= 0' for unsigned integer comparison.
>>
>> Signed-off-by: Zijun Hu <quic_zijuhu@...cinc.com>
>> ---
> This is honestly not worth the effort thinking about.
> I'm going to propose that we remove this system call or at least switch
> the default to N. Nobody uses this anymore I'm pretty sure

Sound good.

i just started looking at FS code (^^).