Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755904AbaAVPL3 (ORCPT ); Wed, 22 Jan 2014 10:11:29 -0500 Received: from loki.mindstab.net ([69.164.214.81]:35623 "EHLO loki.localdomain" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755233AbaAVPL2 (ORCPT ); Wed, 22 Jan 2014 10:11:28 -0500 To: Lennart Poettering , kay.sievers@vrfy.org, Arnd Bergmann , "David S. Miller" , Eric Dumazet , Eliezer Tamir , Neil Horman , Li Zefan , linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH 1/1] Per socket value for max datagram queue length MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Date: Wed, 22 Jan 2014 07:11:20 -0800 From: Dan Ballard Message-ID: <13e8aad86903481261581de7c29444e3@mindstab.net> User-Agent: Roundcube Webmail/0.9.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Provides a new option for setsockopt SO_MAX_DGRAM_QLEN that sets and gets a socket specific max datagram queue length. Currently each socket has one but it's only ever initialized from /proc/sys/net/unix/max_dgram_qlen and then never adjustable later. Now each socket can have it individually tweaked during it's life. Signed-off-by: Dan Ballard --- include/uapi/asm-generic/socket.h | 2 ++ net/core/sock.c | 7 +++++++ 2 files changed, 9 insertions(+) diff --git a/include/uapi/asm-generic/socket.h b/include/uapi/asm-generic/socket.h index 38f14d0..f8c3e6b 100644 --- a/include/uapi/asm-generic/socket.h +++ b/include/uapi/asm-generic/socket.h @@ -80,4 +80,6 @@ #define SO_MAX_PACING_RATE 47 +#define SO_MAX_DGRAM_QLEN 48 + #endif /* __ASM_GENERIC_SOCKET_H */ diff --git a/net/core/sock.c b/net/core/sock.c index 5393b4b..1ff69d1 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -915,6 +915,10 @@ set_rcvbuf: sk->sk_max_pacing_rate); break; + case SO_MAX_DGRAM_QLEN: + sk->sk_max_ack_backlog = val; + break; + default: ret = -ENOPROTOOPT; break; @@ -1182,6 +1186,9 @@ int sock_getsockopt(struct socket *sock, int level, int optname, v.val = sk->sk_max_pacing_rate; break; + case SO_MAX_DGRAM_QLEN: + v.val = sk->sk_max_ack_backlog; + break; default: return -ENOPROTOOPT; } -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/