diff options
Diffstat (limited to 'include/linux/sched.h')
| -rw-r--r-- | include/linux/sched.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 393ce94e54b..3ff5c8519ab 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -2236,9 +2236,16 @@ static inline void task_unlock(struct task_struct *p) spin_unlock(&p->alloc_lock); } -extern struct sighand_struct *lock_task_sighand(struct task_struct *tsk, +extern struct sighand_struct *__lock_task_sighand(struct task_struct *tsk, unsigned long *flags); +#define lock_task_sighand(tsk, flags) \ +({ struct sighand_struct *__ss; \ + __cond_lock(&(tsk)->sighand->siglock, \ + (__ss = __lock_task_sighand(tsk, flags))); \ + __ss; \ +}) \ + static inline void unlock_task_sighand(struct task_struct *tsk, unsigned long *flags) { |