eventpoll: support non-blocking do_epoll_ctl() calls

Also make it available outside of epoll, along with the helper that decides if we need to copy the passed in epoll_event.

Jens Axboe committed 6 years ago

Commit 39220e81 parent 58e41a42 files · +42 −13Browse files

Showing the changes to include/linux (1 of 2 files). Show all

Unified · Split

@@ -61,6 +61,15 @@ static inline void eventpoll_release(struct file *file) · 60 unmodified lines
61	61	eventpoll_release_file(file);
62	62	}
63	63
	64	+int do_epoll_ctl(int epfd, int op, int fd, struct epoll_event *epds,
	65	+ bool nonblock);
	66	+
	67	+/* Tells if the epoll_ctl(2) operation needs an event copy from userspace */
	68	+static inline int ep_op_has_event(int op)
	69	+{
	70	+ return op != EPOLL_CTL_DEL;
	71	+}
	72	+
64	73	#else
65	74
66	75	static inline void eventpoll_init_file(struct file *file) {}