key_to_poll
__poll_t flags = key_to_poll(key);
__poll_t flags = key_to_poll(key);
if (!(key_to_poll(key) & poll->mask))
__poll_t flags = key_to_poll(key);
__poll_t mask = key_to_poll(key);
__poll_t pollflags = key_to_poll(key);
if (key && !(key_to_poll(key) & entry->key))
__poll_t mask = key_to_poll(key);
if (key && !(key_to_poll(key) & (EPOLLIN | EPOLLERR | EPOLLHUP)))
__poll_t flags = key_to_poll(key);
if (key && !(key_to_poll(key) & (EPOLLIN | EPOLLERR)))
flags = key_to_poll(key);
wake_up_interruptible_poll(u_sleep, key_to_poll(key));
__poll_t flags = key_to_poll(key);