linux-kernel - Re: [PATCH v2 RESEND 0/5] sched/vtime: vtime.h headers cleanup

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Date: Wed, 17 Apr 2024 12:27:30 +0200
From: Frederic Weisbecker <frederic@...nel.org>
To: Alexander Gordeev <agordeev@...ux.ibm.com>,
	Ingo Molnar <mingo@...nel.org>
Cc: Ingo Molnar <mingo@...hat.com>, Peter Zijlstra <peterz@...radead.org>,
	Juri Lelli <juri.lelli@...hat.com>,
	Vincent Guittot <vincent.guittot@...aro.org>,
	Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org,
	linux-s390@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
	linux-arch@...r.kernel.org, Nicholas Piggin <npiggin@...il.com>,
	Michael Ellerman <mpe@...erman.id.au>,
	Heiko Carstens <hca@...ux.ibm.com>,
	Vasily Gorbik <gor@...ux.ibm.com>
Subject: Re: [PATCH v2 RESEND 0/5] sched/vtime: vtime.h headers cleanup

Le Wed, Apr 10, 2024 at 05:09:43PM +0200, Alexander Gordeev a écrit :
> Hi All,
> 
> There are no changes since the last post, just a re-send.
> 
> v2:
> - patch 4: commit message reworded (Heiko)
> - patch 5: vtime.h is removed from Kbuild scripts (PowerPC only) (Heiko)
> 
> v1:
> Please find a small cleanup to vtime_task_switch() wiring.
> I split it into smaller patches to allow separate PowerPC
> vs s390 reviews. Otherwise patches 2+3 and 4+5 could have
> been merged.
> 
> I tested it on s390 and compile-tested it on 32- and 64-bit
> PowerPC and few other major architectures only, but it is
> only of concern for CONFIG_VIRT_CPU_ACCOUNTING_NATIVE-capable
> ones (AFAICT).
> 
> Thanks!

It probably makes sense to apply the whole series to the scheduler tree.
Does any powerpc or s390 maintainer oppose to that?

Thanks.

> 
> 
> Alexander Gordeev (5):
>   sched/vtime: remove confusing arch_vtime_task_switch() declaration
>   sched/vtime: get rid of generic vtime_task_switch() implementation
>   s390/vtime: remove unused __ARCH_HAS_VTIME_TASK_SWITCH leftover
>   s390/irq,nmi: include <asm/vtime.h> header directly
>   sched/vtime: do not include <asm/vtime.h> header
> 
>  arch/powerpc/include/asm/Kbuild    |  1 -
>  arch/powerpc/include/asm/cputime.h | 13 -------------
>  arch/powerpc/kernel/time.c         | 22 ++++++++++++++++++++++
>  arch/s390/include/asm/vtime.h      |  2 --
>  arch/s390/kernel/irq.c             |  1 +
>  arch/s390/kernel/nmi.c             |  1 +
>  include/asm-generic/vtime.h        |  1 -
>  include/linux/vtime.h              |  5 -----
>  kernel/sched/cputime.c             | 13 -------------
>  9 files changed, 24 insertions(+), 35 deletions(-)
>  delete mode 100644 include/asm-generic/vtime.h
> 
> -- 
> 2.40.1
>