linux-kernel - Re: [PATCH v2 -next 01/11] cgroup/cpuset: introduce cpuset-v1.c

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Message-ID: <465d8842-d118-41a8-b571-1f79f32bbe97@huaweicloud.com>
Date: Tue, 27 Aug 2024 09:45:10 +0800
From: Chen Ridong <chenridong@...weicloud.com>
To: Waiman Long <longman@...hat.com>, tj@...nel.org, lizefan.x@...edance.com,
 hannes@...xchg.org, adityakali@...gle.com, sergeh@...nel.org,
 mkoutny@...e.com
Cc: cgroups@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 -next 01/11] cgroup/cpuset: introduce cpuset-v1.c



On 2024/8/27 3:07, Waiman Long wrote:
> On 8/26/24 09:26, Chen Ridong wrote:
>> This patch introduces the cgroup/cpuset-v1.c source file which will be
>> used for all legacy (cgroup v1) cpuset cgroup code. It also introduces
>> cgroup/cpuset-internal.h to keep declarations shared between
>> cgroup/cpuset.c and cpuset/cpuset-v1.c.
>>
>> As of now, let's compile it if CONFIG_CPUSET is set. Later on it can be
>> switched to use a separate config option, so that the legacy code 
>> won't be
>> compiled if not required.
>>
>> Signed-off-by: Chen Ridong <chenridong@...wei.com>
>> ---
>>   MAINTAINERS                     | 2 ++
>>   kernel/cgroup/Makefile          | 2 +-
>>   kernel/cgroup/cpuset-internal.h | 7 +++++++
>>   kernel/cgroup/cpuset-v1.c       | 4 ++++
>>   4 files changed, 14 insertions(+), 1 deletion(-)
>>   create mode 100644 kernel/cgroup/cpuset-internal.h
>>   create mode 100644 kernel/cgroup/cpuset-v1.c
>>
>> diff --git a/MAINTAINERS b/MAINTAINERS
>> index 82e3924816d2..3b5ec1cafd95 100644
>> --- a/MAINTAINERS
>> +++ b/MAINTAINERS
>> @@ -5698,6 +5698,8 @@ S:    Maintained
>>   T:    git git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git
>>   F:    Documentation/admin-guide/cgroup-v1/cpusets.rst
>>   F:    include/linux/cpuset.h
>> +F:    kernel/cgroup/cpuset-internal.h
>> +F:    kernel/cgroup/cpuset-v1.c
>>   F:    kernel/cgroup/cpuset.c
>>   F:    tools/testing/selftests/cgroup/test_cpuset.c
>>   F:    tools/testing/selftests/cgroup/test_cpuset_prs.sh
>> diff --git a/kernel/cgroup/Makefile b/kernel/cgroup/Makefile
>> index 12f8457ad1f9..005ac4c675cb 100644
>> --- a/kernel/cgroup/Makefile
>> +++ b/kernel/cgroup/Makefile
>> @@ -4,6 +4,6 @@ obj-y := cgroup.o rstat.o namespace.o cgroup-v1.o 
>> freezer.o
>>   obj-$(CONFIG_CGROUP_FREEZER) += legacy_freezer.o
>>   obj-$(CONFIG_CGROUP_PIDS) += pids.o
>>   obj-$(CONFIG_CGROUP_RDMA) += rdma.o
>> -obj-$(CONFIG_CPUSETS) += cpuset.o
>> +obj-$(CONFIG_CPUSETS) += cpuset.o cpuset-v1.o
>>   obj-$(CONFIG_CGROUP_MISC) += misc.o
>>   obj-$(CONFIG_CGROUP_DEBUG) += debug.o
>> diff --git a/kernel/cgroup/cpuset-internal.h 
>> b/kernel/cgroup/cpuset-internal.h
>> new file mode 100644
>> index 000000000000..6605be417e32
>> --- /dev/null
>> +++ b/kernel/cgroup/cpuset-internal.h
>> @@ -0,0 +1,7 @@
>> +/* SPDX-License-Identifier: GPL-2.0-or-later */
>> +
>> +#ifndef __CPUSET_INTERNAL_H
>> +#define __CPUSET_INTERNAL_H
>> +
>> +#endif /* __CPUSET_INTERNAL_H */
>> +
>> diff --git a/kernel/cgroup/cpuset-v1.c b/kernel/cgroup/cpuset-v1.c
>> new file mode 100644
>> index 000000000000..ae166eb4f75d
>> --- /dev/null
>> +++ b/kernel/cgroup/cpuset-v1.c
>> @@ -0,0 +1,4 @@
>> +// SPDX-License-Identifier: GPL-2.0-or-later
>> +
>> +#include "cpuset-internal.h"
>> +
> 
> Don't leave a blank line at the end of a file. You will get the 
> following error when applying the patch.
> 
> 0001-cgroup_cpuset-introduce-cpuset-v1.c.patch:70: new blank line at EOF.
> 
> All your patches except the last one have this problem.
> 
> Cheers,
> Longman

Thank you, will fix it.

Best regards,
Ridong