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| author | Thomas Gleixner <tglx@linutronix.de> | 2011-05-31 14:59:16 (GMT) |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2015-02-13 22:20:31 (GMT) |
| commit | 248d720e007eed8aa1217dd49144ce66d6fca172 (patch) | |
| tree | b8e76a0bc05f64b65f32d5b2da430811eff3ffe0 /include/linux | |
| parent | 827570982c7827027a39837a048a4ad88a274f80 (diff) | |
| download | linux-fsl-qoriq-248d720e007eed8aa1217dd49144ce66d6fca172.tar.xz | |
sched-delay-put-task.patch
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux')
| -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 d4093f7..4d7ffbd 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1439,6 +1439,9 @@ 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. */ @@ -1620,6 +1623,15 @@ 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) @@ -1627,6 +1639,7 @@ 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, |