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| author | Anton Vorontsov <anton.vorontsov@linaro.org> | 2012-02-09 20:45:19 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2012-02-11 15:41:33 +0100 |
| commit | 9388dc3047a88bedfd867e9ba3e1980c815ac524 (patch) | |
| tree | 50f30a41607c270b00c04644e069f165a456310a /include/linux/sched.h | |
| parent | ed387b781ea6e14b78f449aa2ee4f270b60b01ac (diff) | |
| download | linux-stable-9388dc3047a88bedfd867e9ba3e1980c815ac524.tar.gz linux-stable-9388dc3047a88bedfd867e9ba3e1980c815ac524.tar.bz2 linux-stable-9388dc3047a88bedfd867e9ba3e1980c815ac524.zip | |
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>
Diffstat (limited to 'include/linux/sched.h')
| -rw-r--r-- | include/linux/sched.h | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 92313a3f6f77..5dba2ad52431 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -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) |