diff options
Diffstat (limited to 'include')
-rw-r--r-- | include/net/inet_sock.h | 25 | ||||
-rw-r--r-- | include/net/sock.h | 25 |
2 files changed, 24 insertions, 26 deletions
diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h index a3431a4ff9cc..0a671c32d6b9 100644 --- a/include/net/inet_sock.h +++ b/include/net/inet_sock.h | |||
@@ -290,9 +290,32 @@ static inline void inet_sk_copy_descendant(struct sock *sk_to, | |||
290 | #endif | 290 | #endif |
291 | 291 | ||
292 | int inet_sk_rebuild_header(struct sock *sk); | 292 | int inet_sk_rebuild_header(struct sock *sk); |
293 | void inet_sk_set_state(struct sock *sk, int state); | 293 | |
294 | /** | ||
295 | * inet_sk_state_load - read sk->sk_state for lockless contexts | ||
296 | * @sk: socket pointer | ||
297 | * | ||
298 | * Paired with inet_sk_state_store(). Used in places we don't hold socket lock: | ||
299 | * tcp_diag_get_info(), tcp_get_info(), tcp_poll(), get_tcp4_sock() ... | ||
300 | */ | ||
301 | static inline int inet_sk_state_load(const struct sock *sk) | ||
302 | { | ||
303 | /* state change might impact lockless readers. */ | ||
304 | return smp_load_acquire(&sk->sk_state); | ||
305 | } | ||
306 | |||
307 | /** | ||
308 | * inet_sk_state_store - update sk->sk_state | ||
309 | * @sk: socket pointer | ||
310 | * @newstate: new state | ||
311 | * | ||
312 | * Paired with inet_sk_state_load(). Should be used in contexts where | ||
313 | * state change might impact lockless readers. | ||
314 | */ | ||
294 | void inet_sk_state_store(struct sock *sk, int newstate); | 315 | void inet_sk_state_store(struct sock *sk, int newstate); |
295 | 316 | ||
317 | void inet_sk_set_state(struct sock *sk, int state); | ||
318 | |||
296 | static inline unsigned int __inet_ehashfn(const __be32 laddr, | 319 | static inline unsigned int __inet_ehashfn(const __be32 laddr, |
297 | const __u16 lport, | 320 | const __u16 lport, |
298 | const __be32 faddr, | 321 | const __be32 faddr, |
diff --git a/include/net/sock.h b/include/net/sock.h index 0a32f3ce381c..6c1db823f8b9 100644 --- a/include/net/sock.h +++ b/include/net/sock.h | |||
@@ -2333,31 +2333,6 @@ static inline bool sk_listener(const struct sock *sk) | |||
2333 | return (1 << sk->sk_state) & (TCPF_LISTEN | TCPF_NEW_SYN_RECV); | 2333 | return (1 << sk->sk_state) & (TCPF_LISTEN | TCPF_NEW_SYN_RECV); |
2334 | } | 2334 | } |
2335 | 2335 | ||
2336 | /** | ||
2337 | * sk_state_load - read sk->sk_state for lockless contexts | ||
2338 | * @sk: socket pointer | ||
2339 | * | ||
2340 | * Paired with sk_state_store(). Used in places we do not hold socket lock : | ||
2341 | * tcp_diag_get_info(), tcp_get_info(), tcp_poll(), get_tcp4_sock() ... | ||
2342 | */ | ||
2343 | static inline int sk_state_load(const struct sock *sk) | ||
2344 | { | ||
2345 | return smp_load_acquire(&sk->sk_state); | ||
2346 | } | ||
2347 | |||
2348 | /** | ||
2349 | * sk_state_store - update sk->sk_state | ||
2350 | * @sk: socket pointer | ||
2351 | * @newstate: new state | ||
2352 | * | ||
2353 | * Paired with sk_state_load(). Should be used in contexts where | ||
2354 | * state change might impact lockless readers. | ||
2355 | */ | ||
2356 | static inline void sk_state_store(struct sock *sk, int newstate) | ||
2357 | { | ||
2358 | smp_store_release(&sk->sk_state, newstate); | ||
2359 | } | ||
2360 | |||
2361 | void sock_enable_timestamp(struct sock *sk, int flag); | 2336 | void sock_enable_timestamp(struct sock *sk, int flag); |
2362 | int sock_get_timestamp(struct sock *, struct timeval __user *); | 2337 | int sock_get_timestamp(struct sock *, struct timeval __user *); |
2363 | int sock_get_timestampns(struct sock *, struct timespec __user *); | 2338 | int sock_get_timestampns(struct sock *, struct timespec __user *); |