linux-kernel - Re: [PATCH v2 1/4] mm: Add optional close() to struct vm_special

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Message-ID: <CAHk-=wgsDJ+sA1T01YT-z5TXs3zxJ54f0VDApkZ1pgcr8T=myQ@mail.gmail.com>
Date: Mon, 19 Aug 2024 13:15:49 -0700
From: Linus Torvalds <torvalds@...ux-foundation.org>
To: Nathan Chancellor <nathan@...nel.org>, Guo Ren <guoren@...nel.org>, Brian Cain <bcain@...cinc.com>, 
	Dinh Nguyen <dinguyen@...nel.org>, Yoshinori Sato <ysato@...rs.sourceforge.jp>, 
	Rich Felker <dalias@...c.org>, John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>, 
	Richard Weinberger <richard@....at>, Anton Ivanov <anton.ivanov@...bridgegreys.com>, 
	Johannes Berg <johannes@...solutions.net>
Cc: Michael Ellerman <mpe@...erman.id.au>, linux-mm@...ck.org, linuxppc-dev@...ts.ozlabs.org, 
	akpm@...ux-foundation.org, christophe.leroy@...roup.eu, jeffxu@...gle.com, 
	Liam.Howlett@...cle.com, linux-kernel@...r.kernel.org, npiggin@...il.com, 
	oliver.sang@...el.com, pedro.falcato@...il.com, linux-um@...ts.infradead.org, 
	linux-csky@...r.kernel.org, linux-hexagon <linux-hexagon@...r.kernel.org>, 
	Linux-sh list <linux-sh@...r.kernel.org>
Subject: Re: [PATCH v2 1/4] mm: Add optional close() to struct vm_special_mapping

On Mon, 19 Aug 2024 at 12:51, Nathan Chancellor <nathan@...nel.org> wrote:
>
> Yes, that appears to fix it for me. I don't have much to say about the
> rest but others might :)

Ok, I did a quick hack-job to remove that disgusting
install_special_mapping() legacy case.

With this, the old "install_special_mapping()" mess no longer exists,
but I haven't even attempted to compile the result, because I don't
have cross-compile environments for any of the affected architectures.

Except UML. I did at least build it there, but it's not like I tested it.

Adding architecture maintainers and more architecture lists to the
participants. It would be good to actually get this patch tested.
Context for newly added people:

   https://lore.kernel.org/all/CAHk-=wj9QPhG4CjiX8YLRC1wHj_Qs-T8wJi0WEhkfp0cszvB9w@mail.gmail.com/

NOTE! This patch is against my current tree, not the linux-next
changes. But it should entirely remove the case that caused problems
in linux-next.

                      Linus