-From a3d4f3b2dfafa2cd9e79fdf35ce8b2afef0fcd66 Mon Sep 17 00:00:00 2001
+From ed5cfee46c545224f3447a911eeaa2acadecbd5a Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Tue, 31 May 2011 16:59:16 +0200
-Subject: [PATCH 088/365] sched: Move task_struct cleanup to RCU
+Subject: [PATCH 088/366] sched: Move task_struct cleanup to RCU
__put_task_struct() does quite some expensive work. We don't want to
burden random tasks with that.
2 files changed, 27 insertions(+), 1 deletion(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
-index 4228b42..8f75cbb 100644
+index 668b2cb..f75df33 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1843,6 +1843,9 @@ struct task_struct {
#ifdef CONFIG_DEBUG_ATOMIC_SLEEP
unsigned long task_state_change;
#endif
-@@ -2052,6 +2055,15 @@ extern struct pid *cad_pid;
+@@ -2054,6 +2057,15 @@ extern struct pid *cad_pid;
extern void free_task(struct task_struct *tsk);
#define get_task_struct(tsk) do { atomic_inc(&(tsk)->usage); } while(0)
extern void __put_task_struct(struct task_struct *t);
static inline void put_task_struct(struct task_struct *t)
-@@ -2059,6 +2071,7 @@ static inline void put_task_struct(struct task_struct *t)
+@@ -2061,6 +2073,7 @@ static inline void put_task_struct(struct task_struct *t)
if (atomic_dec_and_test(&t->usage))
__put_task_struct(t);
}
#ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN
extern void task_cputime(struct task_struct *t,
diff --git a/kernel/fork.c b/kernel/fork.c
-index 06523cd..a94dde7 100644
+index 3256c9e..39cf90f 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -244,7 +244,9 @@ static inline void put_signal_struct(struct signal_struct *sig)
void __init __weak arch_task_cache_init(void) { }
--
-2.7.4
+1.9.1