@@ -1135,7 +1135,6 @@ static struct wait_queue_head *sock_get_poll_head(struct file *file,
if (!sock->ops->poll_mask)
return NULL;
- sock_poll_busy_loop(sock, events);
return &sock->wq->wait;
}
@@ -1161,8 +1160,9 @@ static __poll_t sock_poll(struct file *file, poll_table *wait)
struct socket *sock = file->private_data;
__poll_t events = poll_requested_events(wait), mask = 0;
+ sock_poll_busy_loop(sock, events);
+
if (sock->ops->poll) {
- sock_poll_busy_loop(sock, events);
mask = sock->ops->poll(file, sock, wait);
} else if (sock->ops->poll_mask) {
sock_poll_wait(file, sock_get_poll_head(file, events), wait);
Busy polling always comes from a synchronous poll context, so for now we can assume that it calls ->poll if present. Move the busy polling in sock_poll to the common block and remove it from sock_get_poll_head to prepare for the removal of the get_poll_head method. Signed-off-by: Christoph Hellwig <hch@lst.de> --- net/socket.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)