[RHEL7,v21,04/14] cgroup: exported __put_css_set and wrappers to cgroup.h

Submitted by Valeriy Vdovin on July 28, 2020, 5:53 p.m.

Details

Message ID 1595958806-338946-5-git-send-email-valeriy.vdovin@virtuozzo.com
State New
Series "Make release_agent per-cgroup property. Run release_agent in proper ve."
Headers show

Commit Message

Valeriy Vdovin July 28, 2020, 5:53 p.m. 
Signed-off-by: Valeriy Vdovin <valeriy.vdovin@virtuozzo.com>
Reviewed-by: Kirill Tkhai <ktkhai@virtuozzo.com>
---
 include/linux/cgroup.h | 20 ++++++++++++++++++++
 kernel/cgroup.c        | 20 +-------------------
 2 files changed, 21 insertions(+), 19 deletions(-)

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diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index b25d0e18..ac60aaed 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -478,6 +478,26 @@  struct css_set {
 };
 
 /*
+ * refcounted get/put for css_set objects
+ */
+extern void __put_css_set(struct css_set *cg, int taskexit);
+
+static inline void get_css_set(struct css_set *cg)
+{
+	atomic_inc(&cg->refcount);
+}
+
+static inline void put_css_set(struct css_set *cg)
+{
+	__put_css_set(cg, 0);
+}
+
+static inline void put_css_set_taskexit(struct css_set *cg)
+{
+	__put_css_set(cg, 1);
+}
+
+/*
  * cgroup_map_cb is an abstract callback API for reporting map-valued
  * control files
  */
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index a91dd5f..ce576c5 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -335,7 +335,7 @@  static unsigned long css_set_hash(struct cgroup_subsys_state *css[])
  * compiled into their kernel but not actually in use */
 static int use_task_css_set_links __read_mostly;
 
-static void __put_css_set(struct css_set *cg, int taskexit)
+void __put_css_set(struct css_set *cg, int taskexit)
 {
 	struct cg_cgroup_link *link;
 	struct cg_cgroup_link *saved_link;
@@ -384,24 +384,6 @@  static void __put_css_set(struct css_set *cg, int taskexit)
 }
 
 /*
- * refcounted get/put for css_set objects
- */
-static inline void get_css_set(struct css_set *cg)
-{
-	atomic_inc(&cg->refcount);
-}
-
-static inline void put_css_set(struct css_set *cg)
-{
-	__put_css_set(cg, 0);
-}
-
-static inline void put_css_set_taskexit(struct css_set *cg)
-{
-	__put_css_set(cg, 1);
-}
-
-/*
  * compare_css_sets - helper function for find_existing_css_set().
  * @cg: candidate css_set being tested
  * @old_cg: existing css_set for a task