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net: remove sock_poll_busy_flag

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Fold it into the only caller to make the code simpler and easier to read.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Christoph Hellwig 2018-07-30 09:42:13 +02:00 committed by David S. Miller
parent f641f13b99
commit a331de3bf0
2 changed files with 11 additions and 11 deletions
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6
include/net/busy_poll.h
View file

@ -121,12 +121,6 @@ static inline void sk_busy_loop(struct sock *sk, int nonblock)
#endif
}
/* if this socket can poll_ll, tell the system call */
static inline __poll_t sock_poll_busy_flag(struct socket *sock)
{
return sk_can_busy_loop(sock->sk) ? POLL_BUSY_LOOP : 0;
}
/* used in the NIC receive handler to mark the skb */
static inline void skb_mark_napi_id(struct sk_buff *skb,
struct napi_struct *napi)

16
net/socket.c
View file

@ -1130,15 +1130,21 @@ EXPORT_SYMBOL(sock_create_lite);
static __poll_t sock_poll(struct file *file, poll_table *wait)
{
struct socket *sock = file->private_data;
__poll_t events = poll_requested_events(wait);
__poll_t events = poll_requested_events(wait), flag = 0;
if (!sock->ops->poll)
return 0;
/* poll once if requested by the syscall */
if (sk_can_busy_loop(sock->sk) && (events & POLL_BUSY_LOOP))
sk_busy_loop(sock->sk, 1);
return sock->ops->poll(file, sock, wait) | sock_poll_busy_flag(sock);
if (sk_can_busy_loop(sock->sk)) {
/* poll once if requested by the syscall */
if (events & POLL_BUSY_LOOP)
sk_busy_loop(sock->sk, 1);
/* if this socket can poll_ll, tell the system call */
flag = POLL_BUSY_LOOP;
}
return sock->ops->poll(file, sock, wait) | flag;
}
static int sock_mmap(struct file *file, struct vm_area_struct *vma)