From: Chen Ridong <chenridong@huawei.com>
Date: Fri, 30 Aug 2024 10:02:18 +0000 (+0000)
Subject: cgroup/cpuset: introduce cpuset-v1.c
X-Git-Tag: v6.12-rc1~168^2~15
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=71e934a80863c2a9f4d27ee3360dc17e0a609aa6;p=thirdparty%2Fkernel%2Flinux.git

cgroup/cpuset: introduce cpuset-v1.c

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>
---

diff --git a/MAINTAINERS b/MAINTAINERS
index 82e3924816d2c..3b5ec1cafd958 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 12f8457ad1f90..005ac4c675cb1 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 0000000000000..034de3cbf3add
--- /dev/null
+++ b/kernel/cgroup/cpuset-internal.h
@@ -0,0 +1,6 @@
+/* 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 0000000000000..bdec4b1969867
--- /dev/null
+++ b/kernel/cgroup/cpuset-v1.c
@@ -0,0 +1,3 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "cpuset-internal.h"