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cgroup/cpuset: introduce cpuset-v1.c

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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@huawei.com>
Acked-by: Waiman Long <longman@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Chen Ridong 2024-08-30 10:02:18 +00:00 committed by Tejun Heo
parent 43a17fcfcc
commit 71e934a808
4 changed files with 12 additions and 1 deletions
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2
MAINTAINERS
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@ -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

2
kernel/cgroup/Makefile
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@ -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

6
kernel/cgroup/cpuset-internal.h Normal file
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@ -0,0 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef __CPUSET_INTERNAL_H
#define __CPUSET_INTERNAL_H
#endif /* __CPUSET_INTERNAL_H */

3
kernel/cgroup/cpuset-v1.c Normal file
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@ -0,0 +1,3 @@
// SPDX-License-Identifier: GPL-2.0-or-later
#include "cpuset-internal.h"