linux-kernel - Re: [PATCH 0/6] x86/fpu: don't abuse x86_task_fpu(PF_USER_WORKER) in .regset

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Message-ID: <20250815160244.GI11549@redhat.com>
Date: Fri, 15 Aug 2025 18:02:44 +0200
From: Oleg Nesterov <oleg@...hat.com>
To: Dave Hansen <dave.hansen@...el.com>
Cc: Borislav Petkov <bp@...en8.de>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	"H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...nel.org>,
	Jens Axboe <axboe@...nel.dk>, Peter Zijlstra <peterz@...radead.org>,
	Rick Edgecombe <rick.p.edgecombe@...el.com>,
	Sohil Mehta <sohil.mehta@...el.com>,
	Thomas Gleixner <tglx@...utronix.de>, linux-kernel@...r.kernel.org,
	x86@...nel.org, Mark Brown <broonie@...nel.org>
Subject: Re: [PATCH 0/6] x86/fpu: don't abuse x86_task_fpu(PF_USER_WORKER) in
 .regset_get() paths

On 08/15, Dave Hansen wrote:
>
> On 8/15/25 08:52, Oleg Nesterov wrote:
> > Dave, Sohil, what do you think?
> >
> > OK, it seems that 5/6 (and thus 6/6) needs more discussion, but what
> > about 1-3 for the start?
> They kinda need fleshed out changelogs first, don't you think?
> Especially 1/6. It also needs an actual cover letter explaining what
> it's trying to do and the larger context. Ideally, it's self-contained
> and as opposed to links to previous discussions.

I agree about the cover letter, but what else do you think the changelog
in 1/6 could say? ;)

OK, I'll try to improve and resend.

Oleg.