Move ep_take_care_of_epollwakeup() to fs/eventpoll.c
This doesn't make any sense to expose to userspace, so it's been moved
to the one user. This was introduced by commit 95f19f658ce1 ("epoll:
drop EPOLLWAKEUP if PM_SLEEP is disabled").
Signed-off-by: Palmer Dabbelt <[email protected]>
Reviewed-by: Andrew Waterman <[email protected]>
Reviewed-by: Albert Ou <[email protected]>
Message-Id: <[email protected]>
[thuth: Rebased to fix contextual conflicts]
Reviewed-by: Arnd Bergmann <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Thomas Huth <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 64659b11..e2a5d2c 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -2042,6 +2042,19 @@ SYSCALL_DEFINE1(epoll_create, int, size)
return do_epoll_create(0);
}
+#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
+
static inline int epoll_mutex_lock(struct mutex *mutex, int depth,
bool nonblock)
{
