tcp: do_tcp_sendpages() must try to push data out on oom conditions

[mv-sheeva.git] / net / ipv4 / tcp.c

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 8bb6adeb62c0eb7dcba14841a1f08375cfde6304..6589e11d57b6a1d266ecb2e021b85471fe61654a 100644 (file)
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -851,8 +851,7 @@ new_segment:
 wait_for_sndbuf:
                set_bit(SOCK_NOSPACE, &sk->sk_socket->flags);
 wait_for_memory:
-               if (copied)
-                       tcp_push(sk, flags & ~MSG_MORE, mss_now, TCP_NAGLE_PUSH);
+               tcp_push(sk, flags & ~MSG_MORE, mss_now, TCP_NAGLE_PUSH);
 
                if ((err = sk_stream_wait_memory(sk, &timeo)) != 0)
                        goto do_error;
@@ -3243,7 +3242,7 @@ void __init tcp_init(void)
 {
        struct sk_buff *skb = NULL;
        unsigned long limit;
-       int max_share, cnt;
+       int max_rshare, max_wshare, cnt;
        unsigned int i;
        unsigned long jiffy = jiffies;
 
@@ -3303,15 +3302,16 @@ void __init tcp_init(void)
        tcp_init_mem(&init_net);
        /* Set per-socket limits to no more than 1/128 the pressure threshold */
        limit = nr_free_buffer_pages() << (PAGE_SHIFT - 7);
-       max_share = min(4UL*1024*1024, limit);
+       max_wshare = min(4UL*1024*1024, limit);
+       max_rshare = min(6UL*1024*1024, limit);
 
        sysctl_tcp_wmem[0] = SK_MEM_QUANTUM;
        sysctl_tcp_wmem[1] = 16*1024;
-       sysctl_tcp_wmem[2] = max(64*1024, max_share);
+       sysctl_tcp_wmem[2] = max(64*1024, max_wshare);
 
        sysctl_tcp_rmem[0] = SK_MEM_QUANTUM;
        sysctl_tcp_rmem[1] = 87380;
-       sysctl_tcp_rmem[2] = max(87380, max_share);
+       sysctl_tcp_rmem[2] = max(87380, max_rshare);
 
        pr_info("Hash tables configured (established %u bind %u)\n",
                tcp_hashinfo.ehash_mask + 1, tcp_hashinfo.bhash_size);