linux-kernel - Re: [PATCH 10/14] uaccess: remove most CONFIG_SET

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Message-ID: <YgqL/NJ3YHEAhj4i@infradead.org>
Date:   Mon, 14 Feb 2022 09:06:04 -0800
From:   Christoph Hellwig <hch@...radead.org>
To:     Arnd Bergmann <arnd@...nel.org>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Christoph Hellwig <hch@....de>, linux-arch@...r.kernel.org,
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Subject: Re: [PATCH 10/14] uaccess: remove most CONFIG_SET_FS users

On Mon, Feb 14, 2022 at 05:34:48PM +0100, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@...db.de>
> 
> On almost all architectures, there are no remaining callers
> of set_fs(), so CONFIG_SET_FS can be disabled, along with
> removing the thread_info field and any references to it.
> 
> This turns access_ok() into a cheaper check against TASK_SIZE_MAX.

Wouldn't it make more sense to just merge this into the last patch?