From: Johannes Berg <johannes@sipsolutions.net>
To: "Thomas Weißschuh" <linux@weissschuh.net>
Cc: Tiwei Bie <tiwei.bie@linux.dev>,
richard@nod.at, anton.ivanov@cambridgegreys.com,
benjamin@sipsolutions.net, arnd@arndb.de,
linux-um@lists.infradead.org, linux-kernel@vger.kernel.org,
tiwei.btw@antgroup.com
Subject: Re: [PATCH v2 03/10] um: vdso: Implement __vdso_getcpu() via syscall
Date: Tue, 21 Oct 2025 15:20:54 +0200 [thread overview]
Message-ID: <fc93795ff03dc767a800a18a6ef33ff778f13b5d.camel@sipsolutions.net> (raw)
In-Reply-To: <96ae8e726480a36a37d472106b761a141394e845.camel@sipsolutions.net>
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
next prev parent reply other threads:[~2025-10-21 13:21 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-10 5:51 [PATCH v2 00/10] um: Add SMP support Tiwei Bie
2025-08-10 5:51 ` [PATCH v2 01/10] um: Stop tracking virtual CPUs via mm_cpumask() Tiwei Bie
2025-08-10 5:51 ` [PATCH v2 02/10] um: Remove unused cpu_data and current_cpu_data macros Tiwei Bie
2025-08-10 5:51 ` [PATCH v2 03/10] um: vdso: Implement __vdso_getcpu() via syscall Tiwei Bie
2025-09-10 11:59 ` Johannes Berg
2025-09-11 4:29 ` Tiwei Bie
2025-09-21 20:00 ` Thomas Weißschuh
2025-09-22 4:50 ` Tiwei Bie
2025-09-22 12:05 ` Thomas Weißschuh
2025-09-22 12:12 ` Johannes Berg
2025-09-22 14:01 ` Thomas Weißschuh
2025-09-22 15:14 ` Johannes Berg
2025-09-22 16:04 ` Thomas Weißschuh
2025-09-22 17:07 ` Johannes Berg
2025-09-25 17:08 ` Thomas Weißschuh
2025-10-21 13:20 ` Johannes Berg [this message]
2025-08-10 5:51 ` [PATCH v2 04/10] um: Turn signals_* into thread-local variables Tiwei Bie
2025-09-10 12:15 ` Johannes Berg
2025-09-11 4:34 ` Tiwei Bie
2025-09-11 7:37 ` Benjamin Berg
2025-09-11 8:06 ` Benjamin Berg
2025-09-12 0:30 ` Tiwei Bie
2025-09-12 7:58 ` Benjamin Berg
2025-09-12 13:27 ` Tiwei Bie
2025-09-11 9:44 ` Johannes Berg
2025-09-11 10:35 ` Benjamin Berg
2025-08-10 5:51 ` [PATCH v2 05/10] um: Determine sleep based on need_resched() Tiwei Bie
2025-09-10 12:10 ` Johannes Berg
2025-09-11 4:39 ` Tiwei Bie
2025-09-11 6:59 ` Johannes Berg
2025-09-12 0:59 ` Tiwei Bie
2025-09-11 9:27 ` Johannes Berg
2025-09-12 0:54 ` Tiwei Bie
2025-08-10 5:51 ` [PATCH v2 06/10] um: Define timers on a per-CPU basis Tiwei Bie
2025-08-10 9:49 ` kernel test robot
2025-08-10 5:51 ` [PATCH v2 07/10] um: Remove unused ipi_pipe field from cpuinfo_um Tiwei Bie
2025-08-10 5:51 ` [PATCH v2 08/10] um: Add initial SMP support Tiwei Bie
2025-09-11 9:32 ` Johannes Berg
2025-09-12 0:45 ` Tiwei Bie
2025-09-12 7:58 ` Johannes Berg
2025-08-10 5:51 ` [PATCH v2 09/10] asm-generic: percpu: Add assembly guard Tiwei Bie
2025-09-10 12:12 ` Johannes Berg
2025-08-10 5:51 ` [PATCH v2 10/10] um: Enable SMP support on x86 Tiwei Bie
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