[PATCH 2/6] eventpoll: export is_file_epoll()

Make is_file_epoll() available outside of epoll. This is in preparation
from using it from io_uring.

Signed-off-by: Jens Axboe <[email protected]>
---
 fs/eventpoll.c            | 2 +-
 include/linux/eventpoll.h | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index f464f2f39e0e..9ea6a2bd3d87 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -334,7 +334,7 @@ static void __init epoll_sysctls_init(void)
 
 static const struct file_operations eventpoll_fops;
 
-static inline int is_file_epoll(struct file *f)
+int is_file_epoll(struct file *f)
 {
 	return f->f_op == &eventpoll_fops;
 }
diff --git a/include/linux/eventpoll.h b/include/linux/eventpoll.h
index 728fb5dee5ed..7bf30e9f90d7 100644
--- a/include/linux/eventpoll.h
+++ b/include/linux/eventpoll.h
@@ -63,6 +63,7 @@ static inline void eventpoll_release(struct file *file)
 
 int do_epoll_ctl(int epfd, int op, int fd, struct epoll_event *epds,
 		 bool nonblock);
+int is_file_epoll(struct file *f);
 
 /* Tells if the epoll_ctl(2) operation needs an event copy from userspace */
 static inline int ep_op_has_event(int op)
-- 
2.53.0