From: Jens Axboe axboe@kernel.dk
[ Upstream commit b713c195d59332277a31a59c91f755e53b5b302b ]
No functional changes in this patch, needed to provide io_uring support for shutdown(2).
Cc: netdev@vger.kernel.org Cc: David S. Miller davem@davemloft.net Acked-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- include/linux/socket.h | 1 + net/socket.c | 15 ++++++++++++--- 2 files changed, 13 insertions(+), 3 deletions(-)
--- a/include/linux/socket.h +++ b/include/linux/socket.h @@ -436,5 +436,6 @@ extern int __sys_getpeername(int fd, str int __user *usockaddr_len); extern int __sys_socketpair(int family, int type, int protocol, int __user *usockvec); +extern int __sys_shutdown_sock(struct socket *sock, int how); extern int __sys_shutdown(int fd, int how); #endif /* _LINUX_SOCKET_H */ --- a/net/socket.c +++ b/net/socket.c @@ -2181,6 +2181,17 @@ SYSCALL_DEFINE5(getsockopt, int, fd, int * Shutdown a socket. */
+int __sys_shutdown_sock(struct socket *sock, int how) +{ + int err; + + err = security_socket_shutdown(sock, how); + if (!err) + err = sock->ops->shutdown(sock, how); + + return err; +} + int __sys_shutdown(int fd, int how) { int err, fput_needed; @@ -2188,9 +2199,7 @@ int __sys_shutdown(int fd, int how)
sock = sockfd_lookup_light(fd, &err, &fput_needed); if (sock != NULL) { - err = security_socket_shutdown(sock, how); - if (!err) - err = sock->ops->shutdown(sock, how); + err = __sys_shutdown_sock(sock, how); fput_light(sock->file, fput_needed); } return err;