diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2011-05-31 16:59:16 +0200 |
|---|---|---|
| committer | Anders Roxell <anders.roxell@linaro.org> | 2013-11-25 13:29:40 +0100 |
| commit | db879891904b6e2f2d36e7805643cdccbe87ff10 (patch) | |
| tree | 6ada7ece3cfc669f87ccbe360ac3e812d47b2e79 /include | |
| parent | 8d7037cc1c665600bd69b3c858ee69bb26f049c5 (diff) | |
sched-delay-put-task.patch
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/sched.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 09bd672a0d67..780f172483cf 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1438,6 +1438,9 @@ struct task_struct { unsigned int sequential_io; unsigned int sequential_io_avg; #endif +#ifdef CONFIG_PREEMPT_RT_BASE + struct rcu_head put_rcu; +#endif }; /* Future-safe accessor for struct task_struct's cpus_allowed. */ @@ -1597,6 +1600,15 @@ 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) +#ifdef CONFIG_PREEMPT_RT_BASE +extern void __put_task_struct_cb(struct rcu_head *rhp); + +static inline void put_task_struct(struct task_struct *t) +{ + if (atomic_dec_and_test(&t->usage)) + call_rcu(&t->put_rcu, __put_task_struct_cb); +} +#else extern void __put_task_struct(struct task_struct *t); static inline void put_task_struct(struct task_struct *t) @@ -1604,6 +1616,7 @@ static inline void put_task_struct(struct task_struct *t) if (atomic_dec_and_test(&t->usage)) __put_task_struct(t); } +#endif #ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN extern void task_cputime(struct task_struct *t, |