diff options
Diffstat (limited to 'include/linux/hrtimer.h')
| -rw-r--r-- | include/linux/hrtimer.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h index cad8482337cb..acfc5f93d967 100644 --- a/include/linux/hrtimer.h +++ b/include/linux/hrtimer.h @@ -12,6 +12,7 @@ #ifndef _LINUX_HRTIMER_H #define _LINUX_HRTIMER_H +#include <linux/cleanup.h> #include <linux/hrtimer_rearm.h> #include <linux/hrtimer_types.h> #include <linux/init.h> @@ -201,6 +202,29 @@ extern void destroy_hrtimer_on_stack(struct hrtimer *timer); static inline void destroy_hrtimer_on_stack(struct hrtimer *timer) { } #endif +/* + * The cleanup class pairs on-stack setup with debug-object teardown. Callers + * using it must not call destroy_hrtimer_on_stack() manually. + * + * This class provides debug-object teardown, not timer cancellation. Callers + * must ensure that no hrtimer operation can still access the timer before + * leaving the scope. In particular, the timer must no longer be queued and + * any running callback must have completed. + * + * Callers using hrtimer_setup_on_stack() without this class retain + * responsibility for destroying the timer before its backing storage leaves + * scope. + */ +DEFINE_CLASS(hrtimer_on_stack, struct hrtimer *, + destroy_hrtimer_on_stack(_T), + ({ + hrtimer_setup_on_stack(timer, function, clock_id, mode); + timer; + }), + struct hrtimer *timer, + enum hrtimer_restart (*function)(struct hrtimer *), + clockid_t clock_id, enum hrtimer_mode mode) + /* Basic timer operations: */ extern void hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim, u64 range_ns, const enum hrtimer_mode mode); |