[RFC,3/6] epoll: Add definition for epoll_mod_wait structures

Commit Message

Fam Zheng Jan. 20, 2015, 9:57 a.m. UTC

Two structs involved in the coming syscall is defined. Flags in epoll_mod_cmd
are reserved, which makes better word alignment and may allow future extension.

Signed-off-by: Fam Zheng <[e-mail]>
---
 include/uapi/linux/eventpoll.h | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

Patch

diff --git a/include/uapi/linux/eventpoll.h b/include/uapi/linux/eventpoll.h
index bc81fb2..e32a804 100644
--- a/include/uapi/linux/eventpoll.h
+++ b/include/uapi/linux/eventpoll.h
@@ -18,6 +18,8 @@ 
 #include <linux/fcntl.h>
 #include <linux/types.h>
 
+#include <linux/signal.h>
+
 /* Flags for epoll_create1.  */
 #define EPOLL_CLOEXEC O_CLOEXEC
 
@@ -61,6 +63,24 @@  struct epoll_event {
 	__u64 data;
 } EPOLL_PACKED;
 
+struct epoll_mod_cmd {
+	int flags;
+	int op;
+	int fd;
+	__u32 events;
+	__u64 data;
+	int error;
+} EPOLL_PACKED;
+
+struct epoll_wait_spec {
+	int maxevents;
+	struct epoll_event *events;
+	int clockid;
+	struct timespec timeout;
+	sigset_t *sigmask;
+	size_t sigsetsize;
+} EPOLL_PACKED;
+
 #ifdef CONFIG_PM_SLEEP
 static inline void ep_take_care_of_epollwakeup(struct epoll_event *epev)
 {