diff options
| -rw-r--r-- | include/net/sock.h | 5 | ||||
| -rw-r--r-- | net/ipv4/tcp.c | 14 |
2 files changed, 11 insertions, 8 deletions
diff --git a/include/net/sock.h b/include/net/sock.h index e51e626e9af1..cf628261da52 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -1232,9 +1232,8 @@ static inline struct page *sk_stream_alloc_page(struct sock *sk) { struct page *page = NULL; - if (sk_stream_wmem_schedule(sk, PAGE_SIZE)) - page = alloc_pages(sk->sk_allocation, 0); - else { + page = alloc_pages(sk->sk_allocation, 0); + if (!page) { sk->sk_prot->enter_memory_pressure(); sk_stream_moderate_sndbuf(sk); } diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 854f6d0c4bb3..cbcc9fc47783 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -769,19 +769,23 @@ new_segment: if (off == PAGE_SIZE) { put_page(page); TCP_PAGE(sk) = page = NULL; + TCP_OFF(sk) = off = 0; } - } + } else + BUG_ON(off); + + if (copy > PAGE_SIZE - off) + copy = PAGE_SIZE - off; + + if (!sk_stream_wmem_schedule(sk, copy)) + goto wait_for_memory; if (!page) { /* Allocate new cache page. */ if (!(page = sk_stream_alloc_page(sk))) goto wait_for_memory; - off = 0; } - if (copy > PAGE_SIZE - off) - copy = PAGE_SIZE - off; - /* Time to copy data. We are close to * the end! */ err = skb_copy_to_page(sk, from, skb, page, |