From d534322cb6066ae0db4790ceacba3e1a95b1ee7c Mon Sep 17 00:00:00 2001 From: Rebecca Schultz Zavin Date: Fri, 27 Aug 2010 15:10:46 -0700 Subject: [PATCH] Revert "sched: Add a generic notifier when a task struct is about to be freed" This reverts commit 262ffb28f3c0af4cc88e33d5635fe6be5259b37b. --- include/linux/sched.h | 3 --- kernel/fork.c | 16 ---------------- 2 files changed, 19 deletions(-) diff --git a/include/linux/sched.h b/include/linux/sched.h index 6e3dd4fef93c..ba3494e52d17 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1679,9 +1679,6 @@ static inline void put_task_struct(struct task_struct *t) extern void task_times(struct task_struct *p, cputime_t *ut, cputime_t *st); extern void thread_group_times(struct task_struct *p, cputime_t *ut, cputime_t *st); -extern int task_free_register(struct notifier_block *n); -extern int task_free_unregister(struct notifier_block *n); - /* * Per process flags */ diff --git a/kernel/fork.c b/kernel/fork.c index f3d93ab730c6..c445f8cc408d 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -147,9 +147,6 @@ struct kmem_cache *vm_area_cachep; /* SLAB cache for mm_struct structures (tsk->mm) */ static struct kmem_cache *mm_cachep; -/* Notifier list called when a task struct is freed */ -static ATOMIC_NOTIFIER_HEAD(task_free_notifier); - static void account_kernel_stack(struct thread_info *ti, int account) { struct zone *zone = page_zone(virt_to_page(ti)); @@ -180,18 +177,6 @@ static inline void put_signal_struct(struct signal_struct *sig) free_signal_struct(sig); } -int task_free_register(struct notifier_block *n) -{ - return atomic_notifier_chain_register(&task_free_notifier, n); -} -EXPORT_SYMBOL(task_free_register); - -int task_free_unregister(struct notifier_block *n) -{ - return atomic_notifier_chain_unregister(&task_free_notifier, n); -} -EXPORT_SYMBOL(task_free_unregister); - void __put_task_struct(struct task_struct *tsk) { WARN_ON(!tsk->exit_state); @@ -202,7 +187,6 @@ void __put_task_struct(struct task_struct *tsk) delayacct_tsk_free(tsk); put_signal_struct(tsk->signal); - atomic_notifier_call_chain(&task_free_notifier, 0, tsk); if (!profile_handoff_task(tsk)) free_task(tsk); } -- 2.34.1