From 95f19f658ce177387345b51bd48fed7b9cd7d4e8 Mon Sep 17 00:00:00 2001 From: Amit Pundir Date: Fri, 15 Nov 2013 12:56:31 +0530 Subject: epoll: drop EPOLLWAKEUP if PM_SLEEP is disabled Drop EPOLLWAKEUP from epoll events mask if CONFIG_PM_SLEEP is disabled. Signed-off-by: Amit Pundir Cc: John Stultz Cc: Alexander Viro Signed-off-by: Rafael J. Wysocki --- include/uapi/linux/eventpoll.h | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'include/uapi/linux/eventpoll.h') diff --git a/include/uapi/linux/eventpoll.h b/include/uapi/linux/eventpoll.h index 2c267bcbb85c..bc81fb2e1f0e 100644 --- a/include/uapi/linux/eventpoll.h +++ b/include/uapi/linux/eventpoll.h @@ -61,5 +61,16 @@ struct epoll_event { __u64 data; } EPOLL_PACKED; - +#ifdef CONFIG_PM_SLEEP +static inline void ep_take_care_of_epollwakeup(struct epoll_event *epev) +{ + if ((epev->events & EPOLLWAKEUP) && !capable(CAP_BLOCK_SUSPEND)) + epev->events &= ~EPOLLWAKEUP; +} +#else +static inline void ep_take_care_of_epollwakeup(struct epoll_event *epev) +{ + epev->events &= ~EPOLLWAKEUP; +} +#endif #endif /* _UAPI_LINUX_EVENTPOLL_H */ -- cgit v1.2.3