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-rw-r--r--include/net/sock.h33
1 files changed, 33 insertions, 0 deletions
diff --git a/include/net/sock.h b/include/net/sock.h
index 95bd3fd75f94..07133c5e9868 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1208,6 +1208,39 @@ static inline int skb_copy_to_page(struct sock *sk, char __user *from,
1208 return 0; 1208 return 0;
1209} 1209}
1210 1210
1211/**
1212 * sk_wmem_alloc_get - returns write allocations
1213 * @sk: socket
1214 *
1215 * Returns sk_wmem_alloc minus initial offset of one
1216 */
1217static inline int sk_wmem_alloc_get(const struct sock *sk)
1218{
1219 return atomic_read(&sk->sk_wmem_alloc) - 1;
1220}
1221
1222/**
1223 * sk_rmem_alloc_get - returns read allocations
1224 * @sk: socket
1225 *
1226 * Returns sk_rmem_alloc
1227 */
1228static inline int sk_rmem_alloc_get(const struct sock *sk)
1229{
1230 return atomic_read(&sk->sk_rmem_alloc);
1231}
1232
1233/**
1234 * sk_has_allocations - check if allocations are outstanding
1235 * @sk: socket
1236 *
1237 * Returns true if socket has write or read allocations
1238 */
1239static inline int sk_has_allocations(const struct sock *sk)
1240{
1241 return sk_wmem_alloc_get(sk) || sk_rmem_alloc_get(sk);
1242}
1243
1211/* 1244/*
1212 * Queue a received datagram if it will fit. Stream and sequenced 1245 * Queue a received datagram if it will fit. Stream and sequenced
1213 * protocols can't normally use this as they need to fit buffers in 1246 * protocols can't normally use this as they need to fit buffers in