sched: Turn lock_task_sighand() into a static inline
It appears that sparse tool understands static inline functions for context balance checking, so let's turn the macros into an inline func. This makes the code a little bit more robust. Suggested-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org> Cc: KOSAKI Motohiro <kosaki.motohiro@gmail.com> Cc: Greg KH <gregkh@linuxfoundation.org> Cc: Arve <arve@android.com> Cc: San Mehat <san@google.com> Cc: Colin Cross <ccross@android.com> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: kernel-team@android.com Cc: linaro-kernel@lists.linaro.org Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20120209164519.GA10266@oksana.dev.rtsoft.ru Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
parent
ed387b781e
commit
9388dc3047
|
@ -2393,12 +2393,15 @@ static inline void task_unlock(struct task_struct *p)
|
|||
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 struct sighand_struct *lock_task_sighand(struct task_struct *tsk,
|
||||
unsigned long *flags)
|
||||
{
|
||||
struct sighand_struct *ret;
|
||||
|
||||
ret = __lock_task_sighand(tsk, flags);
|
||||
(void)__cond_lock(&tsk->sighand->siglock, ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static inline void unlock_task_sighand(struct task_struct *tsk,
|
||||
unsigned long *flags)
|
||||
|
|
Loading…
Reference in a new issue