Push kernel lock into pru_control()

[Klemens Nanni]

Purely mechanical, then in6_control() and in_control() can be pushed
further individually.

Feedback? OK?
---
 sys/kern/sys_socket.c | 2 --
 sys/netinet/in.c      | 4 ++++
 sys/netinet6/in6.c    | 4 ++++
 3 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/sys/kern/sys_socket.c b/sys/kern/sys_socket.c
index b07119b71cd..e42dd948006 100644
--- a/sys/kern/sys_socket.c
+++ b/sys/kern/sys_socket.c
@@ -134,9 +134,7 @@ soo_ioctl(struct file *fp, u_long cmd, caddr_t data, struct 
proc *p)
                }
                if (IOCGROUP(cmd) == 'r')
                        return (EOPNOTSUPP);
-               KERNEL_LOCK();
                error = pru_control(so, cmd, data, NULL);
-               KERNEL_UNLOCK();
                break;
        }
 
diff --git a/sys/netinet/in.c b/sys/netinet/in.c
index cd8289d2e89..990aaf84c8a 100644
--- a/sys/netinet/in.c
+++ b/sys/netinet/in.c
@@ -202,6 +202,8 @@ in_control(struct socket *so, u_long cmd, caddr_t data, 
struct ifnet *ifp)
        int privileged;
        int error;
 
+       KERNEL_LOCK();
+
        privileged = 0;
        if ((so->so_state & SS_PRIV) != 0)
                privileged++;
@@ -218,6 +220,8 @@ in_control(struct socket *so, u_long cmd, caddr_t data, 
struct ifnet *ifp)
                break;
        }
 
+       KERNEL_UNLOCK();
+
        return error;
 }
 
diff --git a/sys/netinet6/in6.c b/sys/netinet6/in6.c
index 900456fff1a..a51ca2fa5a4 100644
--- a/sys/netinet6/in6.c
+++ b/sys/netinet6/in6.c
@@ -199,6 +199,8 @@ in6_control(struct socket *so, u_long cmd, caddr_t data, 
struct ifnet *ifp)
        int privileged;
        int error;
 
+       KERNEL_LOCK();
+
        privileged = 0;
        if ((so->so_state & SS_PRIV) != 0)
                privileged++;
@@ -215,6 +217,8 @@ in6_control(struct socket *so, u_long cmd, caddr_t data, 
struct ifnet *ifp)
                break;
        }
 
+       KERNEL_UNLOCK();
+
        return error;
 }
 
-- 
2.38.1