aboutsummaryrefslogtreecommitdiffstats
path: root/net/ipv4/tcp_input.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2010-11-12 20:17:55 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2010-11-12 20:17:55 -0500
commit9457b24a0955bbdd2e89220a75de69fe09501bba (patch)
treecb484848e14cc2705c4513ad3ec1f0420a4d55db /net/ipv4/tcp_input.c
parent80ef913f5e6a84551545016cea709f5e96d0cda6 (diff)
parent0597d1b99fcfc2c0eada09a698f85ed413d4ba84 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (66 commits) can-bcm: fix minor heap overflow gianfar: Do not call device_set_wakeup_enable() under a spinlock ipv6: Warn users if maximum number of routes is reached. docs: Add neigh/gc_thresh3 and route/max_size documentation. axnet_cs: fix resume problem for some Ax88790 chip ipv6: addrconf: don't remove address state on ifdown if the address is being kept tcp: Don't change unlocked socket state in tcp_v4_err(). x25: Prevent crashing when parsing bad X.25 facilities cxgb4vf: add call to Firmware to reset VF State. cxgb4vf: Fail open if link_start() fails. cxgb4vf: flesh out PCI Device ID Table ... cxgb4vf: fix some errors in Gather List to skb conversion cxgb4vf: fix bug in Generic Receive Offload cxgb4vf: don't implement trivial (and incorrect) ndo_select_queue() ixgbe: Look inside vlan when determining offload protocol. bnx2x: Look inside vlan when determining checksum proto. vlan: Add function to retrieve EtherType from vlan packets. virtio-net: init link state correctly ucc_geth: Fix deadlock ucc_geth: Do not bring the whole IF down when TX failure. ...
Diffstat (limited to 'net/ipv4/tcp_input.c')
-rw-r--r--net/ipv4/tcp_input.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 3357f69e353d..6d8ab1c4efc3 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -259,8 +259,11 @@ static void tcp_fixup_sndbuf(struct sock *sk)
259 int sndmem = tcp_sk(sk)->rx_opt.mss_clamp + MAX_TCP_HEADER + 16 + 259 int sndmem = tcp_sk(sk)->rx_opt.mss_clamp + MAX_TCP_HEADER + 16 +
260 sizeof(struct sk_buff); 260 sizeof(struct sk_buff);
261 261
262 if (sk->sk_sndbuf < 3 * sndmem) 262 if (sk->sk_sndbuf < 3 * sndmem) {
263 sk->sk_sndbuf = min(3 * sndmem, sysctl_tcp_wmem[2]); 263 sk->sk_sndbuf = 3 * sndmem;
264 if (sk->sk_sndbuf > sysctl_tcp_wmem[2])
265 sk->sk_sndbuf = sysctl_tcp_wmem[2];
266 }
264} 267}
265 268
266/* 2. Tuning advertised window (window_clamp, rcv_ssthresh) 269/* 2. Tuning advertised window (window_clamp, rcv_ssthresh)
@@ -396,7 +399,7 @@ static void tcp_clamp_window(struct sock *sk)
396 if (sk->sk_rcvbuf < sysctl_tcp_rmem[2] && 399 if (sk->sk_rcvbuf < sysctl_tcp_rmem[2] &&
397 !(sk->sk_userlocks & SOCK_RCVBUF_LOCK) && 400 !(sk->sk_userlocks & SOCK_RCVBUF_LOCK) &&
398 !tcp_memory_pressure && 401 !tcp_memory_pressure &&
399 atomic_read(&tcp_memory_allocated) < sysctl_tcp_mem[0]) { 402 atomic_long_read(&tcp_memory_allocated) < sysctl_tcp_mem[0]) {
400 sk->sk_rcvbuf = min(atomic_read(&sk->sk_rmem_alloc), 403 sk->sk_rcvbuf = min(atomic_read(&sk->sk_rmem_alloc),
401 sysctl_tcp_rmem[2]); 404 sysctl_tcp_rmem[2]);
402 } 405 }
@@ -4861,7 +4864,7 @@ static int tcp_should_expand_sndbuf(struct sock *sk)
4861 return 0; 4864 return 0;
4862 4865
4863 /* If we are under soft global TCP memory pressure, do not expand. */ 4866 /* If we are under soft global TCP memory pressure, do not expand. */
4864 if (atomic_read(&tcp_memory_allocated) >= sysctl_tcp_mem[0]) 4867 if (atomic_long_read(&tcp_memory_allocated) >= sysctl_tcp_mem[0])
4865 return 0; 4868 return 0;
4866 4869
4867 /* If we filled the congestion window, do not expand. */ 4870 /* If we filled the congestion window, do not expand. */