make kernel-side POLL... arch-independent
mangle/demangle on the way to/from userland
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/select.c b/fs/select.c
index b2deeb21..ec14171 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -817,7 +817,7 @@ static inline __poll_t do_pollfd(struct pollfd *pollfd, poll_table *pwait,
mask = POLLNVAL;
if (f.file) {
/* userland u16 ->events contains POLL... bitmap */
- __poll_t filter = (__force __poll_t)pollfd->events |
+ __poll_t filter = demangle_poll(pollfd->events) |
POLLERR | POLLHUP;
mask = DEFAULT_POLLMASK;
if (f.file->f_op->poll) {
@@ -833,7 +833,7 @@ static inline __poll_t do_pollfd(struct pollfd *pollfd, poll_table *pwait,
}
}
/* ... and so does ->revents */
- pollfd->revents = (__force u16)mask;
+ pollfd->revents = mangle_poll(mask);
return mask;
}
