linux-kernel - Re: [PATCH v3 1/2] mm/memfd: Refactor and cleanup the logic in memfd

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Message-ID: <CAH5fLgh=r7QSOHu=P=QY_4Xk6FXZR0G3eG63qqrq8cgHzFQxfw@mail.gmail.com>
Date: Fri, 10 Jan 2025 10:12:13 +0100
From: Alice Ryhl <aliceryhl@...gle.com>
To: "Isaac J. Manjarres" <isaacmanjarres@...gle.com>
Cc: lorenzo.stoakes@...cle.com, Andrew Morton <akpm@...ux-foundation.org>, 
	kaleshsingh@...gle.com, jstultz@...gle.com, surenb@...gle.com, 
	kernel-team@...roid.com, linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/2] mm/memfd: Refactor and cleanup the logic in memfd_create()

On Thu, Jan 9, 2025 at 7:59 PM Isaac J. Manjarres
<isaacmanjarres@...gle.com> wrote:
>
> memfd_create() is a pretty busy function that could be easier to read
> if some of the logic was split out into helper functions.
>
> Therefore, split the flags sanitization, name allocation, and file
> structure allocation into their own helper functions.
>
> No functional change.
>
> Signed-off-by: Isaac J. Manjarres <isaacmanjarres@...gle.com>

This looks reasonable to me. One nit below, but:

Reviewed-by: Alice Ryhl <aliceryhl@...gle.com>

>         fd_install(fd, file);
> +       /* name is not needed beyond this point. */
>         kfree(name);
>         return fd;

This comment seems superfluous at this point, since kfree(name) is the
last statement of the function.

Alice