From 9d6a15c3f23bcf0b0e6c6efd7d19f52d960a8697 Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Tue, 13 Mar 2018 19:29:43 +0100 Subject: net: socket: add __sys_socket() helper; remove in-kernel call to syscall Using the net-internal helper __sys_socket() allows us to avoid the internal calls to the sys_socket() syscall. This patch is part of a series which removes in-kernel calls to syscalls. On this basis, the syscall entry path can be streamlined. For details, see http://lkml.kernel.org/r/20180325162527.GA17492@light.dominikbrodowski.net Cc: David S. Miller Cc: netdev@vger.kernel.org Signed-off-by: Dominik Brodowski --- net/socket.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'net/socket.c') diff --git a/net/socket.c b/net/socket.c index 45f6ea0d57a5..07f379e50def 100644 --- a/net/socket.c +++ b/net/socket.c @@ -1332,7 +1332,7 @@ int sock_create_kern(struct net *net, int family, int type, int protocol, struct } EXPORT_SYMBOL(sock_create_kern); -SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol) +int __sys_socket(int family, int type, int protocol) { int retval; struct socket *sock; @@ -1359,6 +1359,11 @@ SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol) return sock_map_fd(sock, flags & (O_CLOEXEC | O_NONBLOCK)); } +SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol) +{ + return __sys_socket(family, type, protocol); +} + /* * Create a pair of connected sockets. */ @@ -2463,7 +2468,7 @@ SYSCALL_DEFINE2(socketcall, int, call, unsigned long __user *, args) switch (call) { case SYS_SOCKET: - err = sys_socket(a0, a1, a[2]); + err = __sys_socket(a0, a1, a[2]); break; case SYS_BIND: err = sys_bind(a0, (struct sockaddr __user *)a1, a[2]); -- cgit v1.2.3-58-ga151