From 496721f1c23ea3423f05dcac554e90a70dddd172 Mon Sep 17 00:00:00 2001 From: =?utf8?q?=E9=BB=84=E6=B6=9B?= Date: Sat, 30 Jul 2011 22:16:32 +0800 Subject: [PATCH] Revert "sched: Add a generic notifier when a task struct is about to be freed" This reverts commit 9e6cb2f4dbe36af72558f60f418cc03df0173628. --- 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 30473ee9628b..e48311e8c923 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1724,9 +1724,6 @@ extern cputime_t task_utime(struct task_struct *p); extern cputime_t task_stime(struct task_struct *p); extern cputime_t task_gtime(struct task_struct *p); -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 2cfa6dcfd44f..166b8c49257c 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -138,9 +138,6 @@ 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)); @@ -159,18 +156,6 @@ void free_task(struct task_struct *tsk) } EXPORT_SYMBOL(free_task); -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); @@ -180,7 +165,6 @@ void __put_task_struct(struct task_struct *tsk) exit_creds(tsk); delayacct_tsk_free(tsk); - atomic_notifier_call_chain(&task_free_notifier, 0, tsk); if (!profile_handoff_task(tsk)) free_task(tsk); } -- 2.34.1