fuse: send poll events

commit 626cf23660 "poll: add poll_requested_events()..." enabled us to send the
requested events to the filesystem.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index a010585..c807176 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -2167,6 +2167,7 @@
 		return DEFAULT_POLLMASK;
 
 	poll_wait(file, &ff->poll_wait, wait);
+	inarg.events = (__u32)poll_requested_events(wait);
 
 	/*
 	 * Ask for notification iff there's someone waiting for it.