linux-kernel - Re: [GIT PULL] scheduler updates for v5.18

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Message-ID: <8ef010a1-d28a-a9f0-78cc-1ad8c40cfb59@infradead.org>
Date:   Tue, 22 Mar 2022 08:39:00 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Nathan Chancellor <nathan@...nel.org>,
        Ingo Molnar <mingo@...nel.org>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-kernel@...r.kernel.org,
        Peter Zijlstra <peterz@...radead.org>,
        Juri Lelli <juri.lelli@...hat.com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ben Segall <bsegall@...gle.com>, Mel Gorman <mgorman@...e.de>,
        Daniel Bristot de Oliveira <bristot@...hat.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Borislav Petkov <bp@...en8.de>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [GIT PULL] scheduler updates for v5.18



On 3/22/22 08:32, Nathan Chancellor wrote:
> On Tue, Mar 22, 2022 at 08:54:53AM +0100, Ingo Molnar wrote:
>>
>> * Nathan Chancellor <nathan@...nel.org> wrote:
>>
>>> Hi Ingo,
>>>
>>> On Mon, Mar 21, 2022 at 11:54:09AM +0100, Ingo Molnar wrote:
>>>> Ingo Molnar (17):
>>>>       sched/headers: Fix header to build standalone: <linux/sched_clock.h>
>>>>       sched/headers: Add header guard to kernel/sched/sched.h
>>>>       sched/headers: Add header guard to kernel/sched/stats.h and kernel/sched/autogroup.h
>>>>       sched/headers: sched/clock: Mark all functions 'notrace', remove CC_FLAGS_FTRACE build asymmetry
>>>>       sched/headers: Add initial new headers as identity mappings
>>>>       sched/headers: Fix comment typo in kernel/sched/cpudeadline.c
>>>>       sched/headers: Make the <linux/sched/deadline.h> header build standalone
>>>>       sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there
>>>>       sched/headers: Introduce kernel/sched/build_policy.c and build multiple .c files there
>>>>       sched/headers: Standardize kernel/sched/sched.h header dependencies
>>>>       sched/headers: Reorganize, clean up and optimize kernel/sched/core.c dependencies
>>>>       sched/headers: Reorganize, clean up and optimize kernel/sched/fair.c dependencies
>>>>       sched/headers: Reorganize, clean up and optimize kernel/sched/build_policy.c dependencies
>>>>       sched/headers: Reorganize, clean up and optimize kernel/sched/build_utility.c dependencies
>>>>       sched/headers: Reorganize, clean up and optimize kernel/sched/sched.h dependencies
>>>>       sched/headers: Only include <linux/entry-common.h> when CONFIG_GENERIC_ENTRY=y
>>>>       headers/prep: Fix header to build standalone: <linux/psi.h>
>>>
>>> This series regresses ARCH=arm allmodconfig:
>>>
>>> $ make -skj"$(nproc)" ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- mrproper allmodconfig kernel/sched/
>>> In file included from kernel/sched/fair.c:52:
>>> kernel/sched/sched.h:87:11: fatal error: asm/paravirt_api_clock.h: No such file or directory
>>>    87 | # include <asm/paravirt_api_clock.h>
>>>       |           ^~~~~~~~~~~~~~~~~~~~~~~~~~
>>> compilation terminated.
>>> make[3]: *** [scripts/Makefile.build:288: kernel/sched/fair.o] Error 1
>>> In file included from kernel/sched/core.c:81:
>>> kernel/sched/sched.h:87:11: fatal error: asm/paravirt_api_clock.h: No such file or directory
>>>    87 | # include <asm/paravirt_api_clock.h>
>>>       |           ^~~~~~~~~~~~~~~~~~~~~~~~~~
>>> compilation terminated.
>>> make[3]: *** [scripts/Makefile.build:288: kernel/sched/core.o] Error 1
>>> In file included from kernel/sched/build_policy.c:33:
>>> kernel/sched/sched.h:87:11: fatal error: asm/paravirt_api_clock.h: No such file or directory
>>>    87 | # include <asm/paravirt_api_clock.h>
>>>       |           ^~~~~~~~~~~~~~~~~~~~~~~~~~
>>> compilation terminated.
>>> make[3]: *** [scripts/Makefile.build:288: kernel/sched/build_policy.o] Error 1
>>> In file included from kernel/sched/build_utility.c:52:
>>> kernel/sched/sched.h:87:11: fatal error: asm/paravirt_api_clock.h: No such file or directory
>>>    87 | # include <asm/paravirt_api_clock.h>
>>>       |           ^~~~~~~~~~~~~~~~~~~~~~~~~~
>>> compilation terminated.
>>> make[3]: *** [scripts/Makefile.build:288: kernel/sched/build_utility.o] Error 1
>>> make[3]: Target '__build' not remade because of errors.
>>> make[2]: *** [scripts/Makefile.build:550: kernel/sched] Error 2
>>>
>>> Randy Dunlap has sent a patch that fixes it, which I just reviewed:
>>>
>>> https://lore.kernel.org/r/20220316204146.14000-1-rdunlap@infradead.org/
>>
>> Applied, thanks Nathan!
>>
>>> It would be nice if this could be taken with the pull (or submitted with
>>> the pull in a v2 as I see Qian's comment) to avoid regressing the build.
>>
>> Will do.
> 
> Thank you a lot for the quick response and fix, I appreciate it!

and my thanks to both of you for taking care of that.

-- 
~Randy