From: Christoph Hellwig <hch@lst.de>
To: "David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>
Cc: Eric Dumazet <edumazet@google.com>,
Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
Jon Maloy <jmaloy@redhat.com>, Ying Xue <ying.xue@windriver.com>,
drbd-dev@lists.linbit.com, linux-kernel@vger.kernel.org,
linux-rdma@vger.kernel.org, linux-nvme@lists.infradead.org,
target-devel@vger.kernel.org, linux-afs@lists.infradead.org,
linux-cifs@vger.kernel.org, cluster-devel@redhat.com,
ocfs2-devel@oss.oracle.com, netdev@vger.kernel.org,
ceph-devel@vger.kernel.org, rds-devel@oss.oracle.com,
linux-nfs@vger.kernel.org, tipc-discussion@lists.sourceforge.net
Subject: [PATCH 04/28] net: add sock_set_sndtimeo
Date: Thu, 28 May 2020 07:12:12 +0200 [thread overview]
Message-ID: <20200528051236.620353-5-hch@lst.de> (raw)
In-Reply-To: <20200528051236.620353-1-hch@lst.de>
Add a helper to directly set the SO_SNDTIMEO_NEW sockopt from kernel
space without going through a fake uaccess. The interface is
simplified to only pass the seconds value, as that is the only
thing needed at the moment.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
fs/dlm/lowcomms.c | 8 ++------
include/net/sock.h | 1 +
net/core/sock.c | 11 +++++++++++
3 files changed, 14 insertions(+), 6 deletions(-)
diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index b801e77e3e596..b4d491122814b 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -1035,7 +1035,6 @@ static void sctp_connect_to_sock(struct connection *con)
int result;
int addr_len;
struct socket *sock;
- struct __kernel_sock_timeval tv = { .tv_sec = 5, .tv_usec = 0 };
if (con->nodeid == 0) {
log_print("attempt to connect sock 0 foiled");
@@ -1087,13 +1086,10 @@ static void sctp_connect_to_sock(struct connection *con)
* since O_NONBLOCK argument in connect() function does not work here,
* then, we should restore the default value of this attribute.
*/
- kernel_setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO_NEW, (char *)&tv,
- sizeof(tv));
+ sock_set_sndtimeo(sock->sk, 5);
result = sock->ops->connect(sock, (struct sockaddr *)&daddr, addr_len,
0);
- memset(&tv, 0, sizeof(tv));
- kernel_setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO_NEW, (char *)&tv,
- sizeof(tv));
+ sock_set_sndtimeo(sock->sk, 0);
if (result == -EINPROGRESS)
result = 0;
diff --git a/include/net/sock.h b/include/net/sock.h
index a3a43141a4be2..9a7b9e98685ac 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -2691,5 +2691,6 @@ void sock_def_readable(struct sock *sk);
void sock_no_linger(struct sock *sk);
void sock_set_priority(struct sock *sk, u32 priority);
void sock_set_reuseaddr(struct sock *sk);
+void sock_set_sndtimeo(struct sock *sk, s64 secs);
#endif /* _SOCK_H */
diff --git a/net/core/sock.c b/net/core/sock.c
index ceda1a9248b3e..d3b1d61e4f768 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -737,6 +737,17 @@ void sock_set_priority(struct sock *sk, u32 priority)
}
EXPORT_SYMBOL(sock_set_priority);
+void sock_set_sndtimeo(struct sock *sk, s64 secs)
+{
+ lock_sock(sk);
+ if (secs && secs < MAX_SCHEDULE_TIMEOUT / HZ - 1)
+ sk->sk_sndtimeo = secs * HZ;
+ else
+ sk->sk_sndtimeo = MAX_SCHEDULE_TIMEOUT;
+ release_sock(sk);
+}
+EXPORT_SYMBOL(sock_set_sndtimeo);
+
/*
* This is meant for all protocols to use and covers goings on
* at the socket level. Everything here is generic.
--
2.26.2
next prev parent reply other threads:[~2020-05-28 5:13 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-28 5:12 remove most callers of kernel_setsockopt v3 Christoph Hellwig
2020-05-28 5:12 ` [PATCH 01/28] net: add sock_set_reuseaddr Christoph Hellwig
2020-05-28 5:12 ` [PATCH 02/28] net: add sock_no_linger Christoph Hellwig
2020-05-28 5:12 ` [PATCH 03/28] net: add sock_set_priority Christoph Hellwig
2020-05-28 5:12 ` Christoph Hellwig [this message]
2020-05-28 5:12 ` [PATCH 05/28] net: add sock_bindtoindex Christoph Hellwig
2020-05-28 5:12 ` [PATCH 06/28] net: add sock_enable_timestamps Christoph Hellwig
2020-05-28 5:12 ` [PATCH 07/28] net: add sock_set_keepalive Christoph Hellwig
2020-05-28 5:12 ` [PATCH 08/28] net: add sock_set_rcvbuf Christoph Hellwig
2020-05-28 5:12 ` [PATCH 09/28] net: add sock_set_reuseport Christoph Hellwig
2020-05-28 5:12 ` [PATCH 10/28] tcp: add tcp_sock_set_cork Christoph Hellwig
2020-05-28 5:12 ` [PATCH 11/28] tcp: add tcp_sock_set_nodelay Christoph Hellwig
2020-05-28 5:12 ` [PATCH 12/28] tcp: add tcp_sock_set_quickack Christoph Hellwig
2020-05-28 5:12 ` [PATCH 13/28] tcp: add tcp_sock_set_syncnt Christoph Hellwig
2020-05-28 5:12 ` [PATCH 14/28] tcp: add tcp_sock_set_user_timeout Christoph Hellwig
2020-05-28 5:12 ` [PATCH 15/28] tcp: add tcp_sock_set_keepidle Christoph Hellwig
2020-05-28 5:12 ` [PATCH 16/28] tcp: add tcp_sock_set_keepintvl Christoph Hellwig
2020-05-28 5:12 ` [PATCH 17/28] tcp: add tcp_sock_set_keepcnt Christoph Hellwig
2020-05-28 5:12 ` [PATCH 18/28] ipv4: add ip_sock_set_tos Christoph Hellwig
2020-05-28 5:12 ` [PATCH 19/28] ipv4: add ip_sock_set_freebind Christoph Hellwig
2020-05-28 5:12 ` [PATCH 20/28] ipv4: add ip_sock_set_recverr Christoph Hellwig
2020-05-28 5:12 ` [PATCH 21/28] ipv4: add ip_sock_set_mtu_discover Christoph Hellwig
2020-05-28 5:12 ` [PATCH 22/28] ipv4: add ip_sock_set_pktinfo Christoph Hellwig
2020-05-28 5:12 ` [PATCH 23/28] ipv6: add ip6_sock_set_v6only Christoph Hellwig
2020-05-28 5:12 ` [PATCH 24/28] ipv6: add ip6_sock_set_recverr Christoph Hellwig
2020-05-28 5:12 ` [PATCH 25/28] ipv6: add ip6_sock_set_addr_preferences Christoph Hellwig
2020-05-28 5:12 ` [PATCH 26/28] ipv6: add ip6_sock_set_recvpktinfo Christoph Hellwig
2020-05-28 5:12 ` [PATCH 27/28] rxrpc: add rxrpc_sock_set_min_security_level Christoph Hellwig
2020-05-28 5:12 ` [PATCH 28/28] tipc: call tsk_set_importance from tipc_topsrv_create_listener Christoph Hellwig
2020-05-28 18:12 ` remove most callers of kernel_setsockopt v3 David Miller
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