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trivial locking rtsock_cb

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Sponsored by:	FreeBSD Foundation
This commit is contained in:
Sam Leffler 2003-10-03 18:27:02 +00:00
parent 91c1935fe5
commit aea8b30f12
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=120703
1 changed files with 11 additions and 0 deletions
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11
sys/net/rtsock.c
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@ -66,6 +66,13 @@ static struct {
int any_count; /* total attached */
} route_cb;
struct mtx rtsock_mtx;
MTX_SYSINIT(rtsock, &rtsock_mtx, "rtsock route_cb lock", MTX_DEF);
#define RTSOCK_LOCK() mtx_lock(&rtsock_mtx)
#define RTSOCK_UNLOCK() mtx_unlock(&rtsock_mtx)
#define RTSOCK_LOCK_ASSERT() mtx_assert(&rtsock_mtx, MA_OWNED)
struct walkarg {
int w_tmemsize;
int w_op, w_arg;
@ -128,6 +135,7 @@ rts_attach(struct socket *so, int proto, struct thread *td)
free(rp, M_PCB);
return error;
}
RTSOCK_LOCK();
switch(rp->rcb_proto.sp_protocol) {
case AF_INET:
route_cb.ip_count++;
@ -141,6 +149,7 @@ rts_attach(struct socket *so, int proto, struct thread *td)
}
rp->rcb_faddr = &route_src;
route_cb.any_count++;
RTSOCK_UNLOCK();
soisconnected(so);
so->so_options |= SO_USELOOPBACK;
splx(s);
@ -178,6 +187,7 @@ rts_detach(struct socket *so)
s = splnet();
if (rp != 0) {
RTSOCK_LOCK();
switch(rp->rcb_proto.sp_protocol) {
case AF_INET:
route_cb.ip_count--;
@ -190,6 +200,7 @@ rts_detach(struct socket *so)
break;
}
route_cb.any_count--;
RTSOCK_UNLOCK();
}
error = raw_usrreqs.pru_detach(so);
splx(s);