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cgroup: Rename cgroup lifecycle hooks to cgroup_task_*()

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The current names cgroup_exit(), cgroup_release(), and cgroup_free() are
confusing because they look like they're operating on cgroups themselves when
they're actually task lifecycle hooks. For example, cgroup_init() initializes
the cgroup subsystem while cgroup_exit() is a task exit notification to
cgroup. Rename them to cgroup_task_exit(), cgroup_task_release(), and
cgroup_task_free() to make it clear that these operate on tasks.

Cc: Dan Schatzberg <dschatzberg@meta.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Reviewed-by: Chen Ridong <chenridong@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Tejun Heo
2025-10-28 20:19:15 -10:00
parent d5cf4d34a3
commit 16dad7801a
5 changed files with 17 additions and 16 deletions
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12
include/linux/cgroup.h
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@@ -137,9 +137,9 @@ extern void cgroup_cancel_fork(struct task_struct *p,
struct kernel_clone_args *kargs);
extern void cgroup_post_fork(struct task_struct *p,
struct kernel_clone_args *kargs);
void cgroup_exit(struct task_struct *p);
void cgroup_release(struct task_struct *p);
void cgroup_free(struct task_struct *p);
void cgroup_task_exit(struct task_struct *p);
void cgroup_task_release(struct task_struct *p);
void cgroup_task_free(struct task_struct *p);
int cgroup_init_early(void);
int cgroup_init(void);
@@ -680,9 +680,9 @@ static inline void cgroup_cancel_fork(struct task_struct *p,
struct kernel_clone_args *kargs) {}
static inline void cgroup_post_fork(struct task_struct *p,
struct kernel_clone_args *kargs) {}
static inline void cgroup_exit(struct task_struct *p) {}
static inline void cgroup_release(struct task_struct *p) {}
static inline void cgroup_free(struct task_struct *p) {}
static inline void cgroup_task_exit(struct task_struct *p) {}
static inline void cgroup_task_release(struct task_struct *p) {}
static inline void cgroup_task_free(struct task_struct *p) {}
static inline int cgroup_init_early(void) { return 0; }
static inline int cgroup_init(void) { return 0; }