linux-kernel - Re: [PATCH v2 03/10] um: vdso: Implement __vdso

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Message-ID: <fc93795ff03dc767a800a18a6ef33ff778f13b5d.camel@sipsolutions.net>
Date: Tue, 21 Oct 2025 15:20:54 +0200
From: Johannes Berg <johannes@...solutions.net>
To: Thomas Weißschuh <linux@...ssschuh.net>
Cc: Tiwei Bie <tiwei.bie@...ux.dev>, richard@....at, 
	anton.ivanov@...bridgegreys.com, benjamin@...solutions.net, arnd@...db.de, 
	linux-um@...ts.infradead.org, linux-kernel@...r.kernel.org, 
	tiwei.btw@...group.com
Subject: Re: [PATCH v2 03/10] um: vdso: Implement __vdso_getcpu() via syscall

On Mon, 2025-09-22 at 19:07 +0200, Johannes Berg wrote:
> 
> I actually have half a patch somewhere that rejiggers the UM vDSO to be
> more like normal architectures, using lib/vdso/gettimeofday.c and making
> the build more regular etc. Maybe I should dig that up and try to make
> it work entirely - it was part of a previous attempt of adding the time-
> travel thing I mentioned.

So that patch is almost 5 years old and with all the VDSO rework since
then, there's no way I can make that work again right now ... I guess
it'd be better to start from scratch and make a real VDSO for UML.

I'll take a look at your cleanups though.

joahnnes