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authorAmit Pundir <amit.pundir@linaro.org>2013-11-15 12:56:31 +0530
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-12-03 15:35:52 +0100
commit95f19f658ce177387345b51bd48fed7b9cd7d4e8 (patch)
tree90ab9da7e5f8033a9133293f6793916e65a758be /include
parentdc1ccc48159d63eca5089e507c82c7d22ef60839 (diff)
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 <amit.pundir@linaro.org> Cc: John Stultz <john.stultz@linaro.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include')
-rw-r--r--include/uapi/linux/eventpoll.h13
1 files changed, 12 insertions, 1 deletions
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 */