linux-kernel - Re: [PATCH] proc: allow to mark /proc files permanent outside of fs/proc/

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Message-ID: <CAGudoHG7TpQ+Mauj5f2f4oM-sSVWGr0MxMeab7wzuPw1k-nt_g@mail.gmail.com>
Date: Thu, 10 Apr 2025 00:04:47 +0200
From: Mateusz Guzik <mjguzik@...il.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Alexey Dobriyan <adobriyan@...il.com>, brauner@...nel.org, linux-kernel@...r.kernel.org, 
	linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH] proc: allow to mark /proc files permanent outside of fs/proc/

On Wed, Apr 9, 2025 at 11:35 PM Andrew Morton <akpm@...ux-foundation.org> wrote:
>
> On Wed, 9 Apr 2025 22:20:13 +0300 Alexey Dobriyan <adobriyan@...il.com> wrote:
>
> > >From 06e2ff406942fef65b9c397a7f44478dd4b61451 Mon Sep 17 00:00:00 2001
> > From: Alexey Dobriyan <adobriyan@...il.com>
> > Date: Sat, 5 Apr 2025 14:50:10 +0300
> > Subject: [PATCH 1/1] proc: allow to mark /proc files permanent outside of
> >  fs/proc/
> >
> > From: Mateusz Guzik <mjguzik@...il.com>
> >
> > Add proc_make_permanent() function to mark PDE as permanent to speed up
> > open/read/close (one alloc/free and lock/unlock less).
>
> When proposing a speedup it is preferable to provide some benchmarking
> results to help others understand the magnitude of that speedup.
>

It's all in the original submission:
https://lore.kernel.org/linux-fsdevel/20250329192821.822253-3-mjguzik@gmail.com/

-- 
Mateusz Guzik <mjguzik gmail.com>