diff options
Diffstat (limited to 'kernel/fork.c')
| -rw-r--r-- | kernel/fork.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index 90c85b17bf69..d2da065442af 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -1152,6 +1152,7 @@ static struct mm_struct *mm_init(struct mm_struct *mm, struct task_struct *p, goto fail_nocontext; mm->user_ns = get_user_ns(user_ns); + lru_gen_init_mm(mm); return mm; fail_nocontext: @@ -1194,6 +1195,7 @@ static inline void __mmput(struct mm_struct *mm) } if (mm->binfmt) module_put(mm->binfmt->module); + lru_gen_del_mm(mm); mmdrop(mm); } @@ -2694,6 +2696,13 @@ pid_t kernel_clone(struct kernel_clone_args *args) get_task_struct(p); } + if (IS_ENABLED(CONFIG_LRU_GEN) && !(clone_flags & CLONE_VM)) { + /* lock the task to synchronize with memcg migration */ + task_lock(p); + lru_gen_add_mm(p->mm); + task_unlock(p); + } + wake_up_new_task(p); /* forking complete and child started to run, tell ptracer */ |