From: Christoph Hellwig <hch@lst.de>
To: "David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>
Cc: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>,
Eric Dumazet <edumazet@google.com>,
linux-nvme@lists.infradead.org, linux-sctp@vger.kernel.org,
target-devel@vger.kernel.org, linux-afs@lists.infradead.org,
linux-cifs@vger.kernel.org, rds-devel@oss.oracle.com,
linux-rdma@vger.kernel.org, cluster-devel@redhat.com,
Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
linux-block@vger.kernel.org, drbd-dev@tron.linbit.com,
ceph-devel@vger.kernel.org, linux-nfs@vger.kernel.org,
Neil Horman <nhorman@tuxdriver.com>,
Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
netdev@vger.kernel.org, Vlad Yasevich <vyasevich@gmail.com>,
linux-kernel@vger.kernel.org, Jon Maloy <jmaloy@redhat.com>,
Ying Xue <ying.xue@windriver.com>,
ocfs2-devel@oss.oracle.com
Subject: [Ocfs2-devel] [PATCH 09/33] net: add sock_set_reuseport
Date: Wed, 13 May 2020 08:26:24 +0200 [thread overview]
Message-ID: <20200513062649.2100053-10-hch@lst.de> (raw)
In-Reply-To: <20200513062649.2100053-1-hch@lst.de>
Add a helper to directly set the SO_REUSEPORT sockopt from kernel space
without going through a fake uaccess.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
include/net/sock.h | 1 +
net/core/sock.c | 8 ++++++++
net/sunrpc/xprtsock.c | 17 +----------------
3 files changed, 10 insertions(+), 16 deletions(-)
diff --git a/include/net/sock.h b/include/net/sock.h
index e1ed40ff01312..6b8e06947b243 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -2688,6 +2688,7 @@ static inline bool sk_dev_equal_l3scope(struct sock *sk, int dif)
void sock_def_readable(struct sock *sk);
void sock_set_reuseaddr(struct sock *sk, unsigned char reuse);
+void sock_set_reuseport(struct sock *sk, bool reuseport);
void sock_set_linger(struct sock *sk, bool onoff, unsigned int linger);
void sock_set_priority(struct sock *sk, u32 priority);
void sock_set_sndtimeo(struct sock *sk, unsigned int secs);
diff --git a/net/core/sock.c b/net/core/sock.c
index 6af01b757cf24..7f0baf1ccde17 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -729,6 +729,14 @@ void sock_set_reuseaddr(struct sock *sk, unsigned char reuse)
}
EXPORT_SYMBOL(sock_set_reuseaddr);
+void sock_set_reuseport(struct sock *sk, bool reuseport)
+{
+ lock_sock(sk);
+ sk->sk_reuseport = reuseport;
+ release_sock(sk);
+}
+EXPORT_SYMBOL(sock_set_reuseport);
+
static void __sock_set_linger(struct sock *sk, bool onoff, unsigned int linger)
{
if (!onoff) {
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index bb61d3758be2b..3dc2d52371a0e 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -1594,21 +1594,6 @@ static int xs_get_random_port(void)
return rand + min;
}
-/**
- * xs_set_reuseaddr_port - set the socket's port and address reuse options
- * @sock: socket
- *
- * Note that this function has to be called on all sockets that share the
- * same port, and it must be called before binding.
- */
-static void xs_sock_set_reuseport(struct socket *sock)
-{
- int opt = 1;
-
- kernel_setsockopt(sock, SOL_SOCKET, SO_REUSEPORT,
- (char *)&opt, sizeof(opt));
-}
-
static unsigned short xs_sock_getport(struct socket *sock)
{
struct sockaddr_storage buf;
@@ -1801,7 +1786,7 @@ static struct socket *xs_create_sock(struct rpc_xprt *xprt,
xs_reclassify_socket(family, sock);
if (reuseport)
- xs_sock_set_reuseport(sock);
+ sock_set_reuseport(sock->sk, true);
err = xs_bind(transport, sock);
if (err) {
--
2.26.2
next prev parent reply other threads:[~2020-05-13 6:26 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-13 6:26 [Ocfs2-devel] remove kernel_setsockopt and kernel_getsockopt Christoph Hellwig
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 01/33] net: add sock_set_reuseaddr Christoph Hellwig
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 02/33] net: add sock_set_linger Christoph Hellwig
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 03/33] net: add sock_set_priority Christoph Hellwig
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 04/33] net: add sock_set_sndtimeo Christoph Hellwig
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 05/33] net: add sock_bindtoindex Christoph Hellwig
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 06/33] net: add sock_set_timestamps Christoph Hellwig
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 07/33] net: add sock_set_keepalive Christoph Hellwig
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 08/33] net: add sock_set_rcvbuf Christoph Hellwig
2020-05-13 6:26 ` Christoph Hellwig [this message]
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 10/33] tcp: add tcp_sock_set_cork Christoph Hellwig
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 11/33] tcp: tcp_sock_set_nodelay Christoph Hellwig
2020-05-13 12:51 ` Jason Gunthorpe
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 12/33] tcp: add tcp_sock_set_quickack Christoph Hellwig
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 13/33] tcp: add tcp_sock_set_syncnt Christoph Hellwig
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 14/33] tcp: add tcp_sock_set_user_timeout Christoph Hellwig
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 15/33] tcp: add tcp_sock_set_keepidle Christoph Hellwig
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 16/33] tcp: add tcp_sock_set_keepintvl Christoph Hellwig
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 17/33] tcp: add tcp_sock_set_keepcnt Christoph Hellwig
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 18/33] ipv4: add ip_sock_set_tos Christoph Hellwig
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 19/33] ipv4: add ip_sock_set_freebind Christoph Hellwig
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 20/33] ipv4: add ip_sock_set_recverr Christoph Hellwig
2020-05-13 21:00 ` Joe Perches
2020-05-14 10:30 ` Christoph Hellwig
2020-05-14 11:51 ` Joe Perches
2020-05-20 14:18 ` Christoph Hellwig
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 21/33] ipv4: add ip_sock_set_mtu_discover Christoph Hellwig
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 22/33] ipv6: add ip6_sock_set_v6only Christoph Hellwig
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 23/33] ipv6: add ip6_sock_set_recverr Christoph Hellwig
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 24/33] ipv6: add ip6_sock_set_addr_preferences Christoph Hellwig
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 25/33] ipv6: add ip6_sock_set_recvpktinfo Christoph Hellwig
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 26/33] sctp: lift copying in addrs into sctp_setsockopt Christoph Hellwig
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 27/33] sctp: export sctp_setsockopt_bindx Christoph Hellwig
2020-05-13 18:00 ` Marcelo Ricardo Leitner
2020-05-14 6:28 ` Christoph Hellwig
2020-05-14 8:23 ` David Laight
2020-05-14 10:40 ` [Ocfs2-devel] is it ok to always pull in sctp for dlm, was: " Christoph Hellwig
2020-05-14 14:24 ` David Teigland
2020-05-15 15:20 ` [Ocfs2-devel] " David Howells
2020-05-15 15:24 ` Christoph Hellwig
2020-05-16 15:21 ` David Laight
2020-05-16 15:11 ` David Laight
2020-05-16 15:36 ` Matthew Wilcox
2020-05-17 8:48 ` David Laight
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 28/33] sctp: add sctp_sock_set_nodelay Christoph Hellwig
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 29/33] rxrpc_sock_set_min_security_level Christoph Hellwig
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 30/33] tipc: call tsk_set_importance from tipc_topsrv_create_listener Christoph Hellwig
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 31/33] net: remove kernel_setsockopt Christoph Hellwig
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 32/33] sctp: add sctp_sock_get_primary_addr Christoph Hellwig
2020-05-13 18:03 ` Marcelo Ricardo Leitner
2020-05-14 9:51 ` David Laight
2020-05-14 12:30 ` David Laight
2020-05-14 13:27 ` David Laight
2020-05-13 6:26 ` [Ocfs2-devel] [PATCH 33/33] net: remove kernel_getsockopt Christoph Hellwig
2020-05-13 13:13 ` [Ocfs2-devel] [PATCH 29/33] rxrpc_sock_set_min_security_level David Howells
2020-05-14 10:29 ` Christoph Hellwig
2020-05-15 15:13 ` David Howells
2020-05-13 13:17 ` [Ocfs2-devel] [PATCH 21/33] ipv4: add ip_sock_set_mtu_discover David Howells
2020-05-14 6:26 ` Christoph Hellwig
2020-05-15 15:15 ` David Howells
2020-05-13 13:24 ` [Ocfs2-devel] [PATCH 20/33] ipv4: add ip_sock_set_recverr David Howells
2020-05-13 13:25 ` [Ocfs2-devel] [PATCH 23/33] ipv6: add ip6_sock_set_recverr David Howells
2020-05-13 13:27 ` [Ocfs2-devel] [PATCH 06/33] net: add sock_set_timestamps David Howells
2020-05-13 17:38 ` [Ocfs2-devel] remove kernel_setsockopt and kernel_getsockopt Joe Perches
2020-05-14 6:27 ` Christoph Hellwig
2020-05-14 8:29 ` David Laight
2020-05-14 10:18 ` Christoph Hellwig
2020-05-14 10:26 ` David Laight
2020-05-14 10:34 ` 'Christoph Hellwig'
2020-05-14 11:11 ` David Laight
2020-05-14 19:35 ` Matthew Wilcox
2020-05-14 20:03 ` David Miller
2020-05-15 8:14 ` David Laight
2020-05-14 19:57 ` David Miller
2020-05-13 18:45 ` Sagi Grimberg
2020-05-13 19:12 ` David Miller
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