diff options
author | jhb <jhb@FreeBSD.org> | 2012-01-05 19:00:36 +0000 |
---|---|---|
committer | jhb <jhb@FreeBSD.org> | 2012-01-05 19:00:36 +0000 |
commit | 4ef366671a65893ccd19a3fc76c415ab0d9a25f2 (patch) | |
tree | e3a128009150d5297d5066b93f051a1a5e2375a5 /sys/net | |
parent | 219e62f17ed5852c0d61721758ef94a0587939f4 (diff) | |
download | FreeBSD-src-4ef366671a65893ccd19a3fc76c415ab0d9a25f2.zip FreeBSD-src-4ef366671a65893ccd19a3fc76c415ab0d9a25f2.tar.gz |
Convert all users of IF_ADDR_LOCK to use new locking macros that specify
either a read lock or write lock.
Reviewed by: bz
MFC after: 2 weeks
Diffstat (limited to 'sys/net')
-rw-r--r-- | sys/net/if.c | 106 | ||||
-rw-r--r-- | sys/net/rtsock.c | 20 |
2 files changed, 63 insertions, 63 deletions
diff --git a/sys/net/if.c b/sys/net/if.c index 50aa11c..63ae79b 100644 --- a/sys/net/if.c +++ b/sys/net/if.c @@ -786,10 +786,10 @@ if_purgemaddrs(struct ifnet *ifp) struct ifmultiaddr *ifma; struct ifmultiaddr *next; - IF_ADDR_LOCK(ifp); + IF_ADDR_WLOCK(ifp); TAILQ_FOREACH_SAFE(ifma, &ifp->if_multiaddrs, ifma_link, next) if_delmulti_locked(ifp, ifma, 1); - IF_ADDR_UNLOCK(ifp); + IF_ADDR_WUNLOCK(ifp); } /* @@ -1133,10 +1133,10 @@ if_addgroup(struct ifnet *ifp, const char *groupname) ifgl->ifgl_group = ifg; ifgm->ifgm_ifp = ifp; - IF_ADDR_LOCK(ifp); + IF_ADDR_WLOCK(ifp); TAILQ_INSERT_TAIL(&ifg->ifg_members, ifgm, ifgm_next); TAILQ_INSERT_TAIL(&ifp->if_groups, ifgl, ifgl_next); - IF_ADDR_UNLOCK(ifp); + IF_ADDR_WUNLOCK(ifp); IFNET_WUNLOCK(); @@ -1163,9 +1163,9 @@ if_delgroup(struct ifnet *ifp, const char *groupname) return (ENOENT); } - IF_ADDR_LOCK(ifp); + IF_ADDR_WLOCK(ifp); TAILQ_REMOVE(&ifp->if_groups, ifgl, ifgl_next); - IF_ADDR_UNLOCK(ifp); + IF_ADDR_WUNLOCK(ifp); TAILQ_FOREACH(ifgm, &ifgl->ifgl_group->ifg_members, ifgm_next) if (ifgm->ifgm_ifp == ifp) @@ -1206,9 +1206,9 @@ if_delgroups(struct ifnet *ifp) strlcpy(groupname, ifgl->ifgl_group->ifg_group, IFNAMSIZ); - IF_ADDR_LOCK(ifp); + IF_ADDR_WLOCK(ifp); TAILQ_REMOVE(&ifp->if_groups, ifgl, ifgl_next); - IF_ADDR_UNLOCK(ifp); + IF_ADDR_WUNLOCK(ifp); TAILQ_FOREACH(ifgm, &ifgl->ifgl_group->ifg_members, ifgm_next) if (ifgm->ifgm_ifp == ifp) @@ -1250,33 +1250,33 @@ if_getgroup(struct ifgroupreq *data, struct ifnet *ifp) struct ifgroupreq *ifgr = data; if (ifgr->ifgr_len == 0) { - IF_ADDR_LOCK(ifp); + IF_ADDR_RLOCK(ifp); TAILQ_FOREACH(ifgl, &ifp->if_groups, ifgl_next) ifgr->ifgr_len += sizeof(struct ifg_req); - IF_ADDR_UNLOCK(ifp); + IF_ADDR_RUNLOCK(ifp); return (0); } len = ifgr->ifgr_len; ifgp = ifgr->ifgr_groups; /* XXX: wire */ - IF_ADDR_LOCK(ifp); + IF_ADDR_RLOCK(ifp); TAILQ_FOREACH(ifgl, &ifp->if_groups, ifgl_next) { if (len < sizeof(ifgrq)) { - IF_ADDR_UNLOCK(ifp); + IF_ADDR_RUNLOCK(ifp); return (EINVAL); } bzero(&ifgrq, sizeof ifgrq); strlcpy(ifgrq.ifgrq_group, ifgl->ifgl_group->ifg_group, sizeof(ifgrq.ifgrq_group)); if ((error = copyout(&ifgrq, ifgp, sizeof(struct ifg_req)))) { - IF_ADDR_UNLOCK(ifp); + IF_ADDR_RUNLOCK(ifp); return (error); } len -= sizeof(ifgrq); ifgp++; } - IF_ADDR_UNLOCK(ifp); + IF_ADDR_RUNLOCK(ifp); return (0); } @@ -1383,28 +1383,28 @@ void if_addr_rlock(struct ifnet *ifp) { - IF_ADDR_LOCK(ifp); + IF_ADDR_RLOCK(ifp); } void if_addr_runlock(struct ifnet *ifp) { - IF_ADDR_UNLOCK(ifp); + IF_ADDR_RUNLOCK(ifp); } void if_maddr_rlock(struct ifnet *ifp) { - IF_ADDR_LOCK(ifp); + IF_ADDR_RLOCK(ifp); } void if_maddr_runlock(struct ifnet *ifp) { - IF_ADDR_UNLOCK(ifp); + IF_ADDR_RUNLOCK(ifp); } /* @@ -1516,14 +1516,14 @@ ifa_ifwithaddr_internal(struct sockaddr *addr, int getref) IFNET_RLOCK_NOSLEEP(); TAILQ_FOREACH(ifp, &V_ifnet, if_link) { - IF_ADDR_LOCK(ifp); + IF_ADDR_RLOCK(ifp); TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) { if (ifa->ifa_addr->sa_family != addr->sa_family) continue; if (sa_equal(addr, ifa->ifa_addr)) { if (getref) ifa_ref(ifa); - IF_ADDR_UNLOCK(ifp); + IF_ADDR_RUNLOCK(ifp); goto done; } /* IP6 doesn't have broadcast */ @@ -1533,11 +1533,11 @@ ifa_ifwithaddr_internal(struct sockaddr *addr, int getref) sa_equal(ifa->ifa_broadaddr, addr)) { if (getref) ifa_ref(ifa); - IF_ADDR_UNLOCK(ifp); + IF_ADDR_RUNLOCK(ifp); goto done; } } - IF_ADDR_UNLOCK(ifp); + IF_ADDR_RUNLOCK(ifp); } ifa = NULL; done: @@ -1571,7 +1571,7 @@ ifa_ifwithbroadaddr(struct sockaddr *addr) IFNET_RLOCK_NOSLEEP(); TAILQ_FOREACH(ifp, &V_ifnet, if_link) { - IF_ADDR_LOCK(ifp); + IF_ADDR_RLOCK(ifp); TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) { if (ifa->ifa_addr->sa_family != addr->sa_family) continue; @@ -1580,11 +1580,11 @@ ifa_ifwithbroadaddr(struct sockaddr *addr) ifa->ifa_broadaddr->sa_len != 0 && sa_equal(ifa->ifa_broadaddr, addr)) { ifa_ref(ifa); - IF_ADDR_UNLOCK(ifp); + IF_ADDR_RUNLOCK(ifp); goto done; } } - IF_ADDR_UNLOCK(ifp); + IF_ADDR_RUNLOCK(ifp); } ifa = NULL; done: @@ -1606,18 +1606,18 @@ ifa_ifwithdstaddr(struct sockaddr *addr) TAILQ_FOREACH(ifp, &V_ifnet, if_link) { if ((ifp->if_flags & IFF_POINTOPOINT) == 0) continue; - IF_ADDR_LOCK(ifp); + IF_ADDR_RLOCK(ifp); TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) { if (ifa->ifa_addr->sa_family != addr->sa_family) continue; if (ifa->ifa_dstaddr != NULL && sa_equal(addr, ifa->ifa_dstaddr)) { ifa_ref(ifa); - IF_ADDR_UNLOCK(ifp); + IF_ADDR_RUNLOCK(ifp); goto done; } } - IF_ADDR_UNLOCK(ifp); + IF_ADDR_RUNLOCK(ifp); } ifa = NULL; done: @@ -1651,12 +1651,12 @@ ifa_ifwithnet(struct sockaddr *addr, int ignore_ptp) /* * Scan though each interface, looking for ones that have addresses * in this address family. Maintain a reference on ifa_maybe once - * we find one, as we release the IF_ADDR_LOCK() that kept it stable + * we find one, as we release the IF_ADDR_RLOCK() that kept it stable * when we move onto the next interface. */ IFNET_RLOCK_NOSLEEP(); TAILQ_FOREACH(ifp, &V_ifnet, if_link) { - IF_ADDR_LOCK(ifp); + IF_ADDR_RLOCK(ifp); TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) { char *cp, *cp2, *cp3; @@ -1675,7 +1675,7 @@ next: continue; if (ifa->ifa_dstaddr != NULL && sa_equal(addr, ifa->ifa_dstaddr)) { ifa_ref(ifa); - IF_ADDR_UNLOCK(ifp); + IF_ADDR_RUNLOCK(ifp); goto done; } } else { @@ -1686,7 +1686,7 @@ next: continue; if (ifa->ifa_claim_addr) { if ((*ifa->ifa_claim_addr)(ifa, addr)) { ifa_ref(ifa); - IF_ADDR_UNLOCK(ifp); + IF_ADDR_RUNLOCK(ifp); goto done; } continue; @@ -1726,7 +1726,7 @@ next: continue; } } } - IF_ADDR_UNLOCK(ifp); + IF_ADDR_RUNLOCK(ifp); } ifa = ifa_maybe; ifa_maybe = NULL; @@ -1752,7 +1752,7 @@ ifaof_ifpforaddr(struct sockaddr *addr, struct ifnet *ifp) if (af >= AF_MAX) return (NULL); - IF_ADDR_LOCK(ifp); + IF_ADDR_RLOCK(ifp); TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) { if (ifa->ifa_addr->sa_family != af) continue; @@ -1784,7 +1784,7 @@ ifaof_ifpforaddr(struct sockaddr *addr, struct ifnet *ifp) done: if (ifa != NULL) ifa_ref(ifa); - IF_ADDR_UNLOCK(ifp); + IF_ADDR_RUNLOCK(ifp); return (ifa); } @@ -2334,9 +2334,9 @@ ifhwioctl(u_long cmd, struct ifnet *ifp, caddr_t data, struct thread *td) * lose a race while we check if the membership * already exists. */ - IF_ADDR_LOCK(ifp); + IF_ADDR_RLOCK(ifp); ifma = if_findmulti(ifp, &ifr->ifr_addr); - IF_ADDR_UNLOCK(ifp); + IF_ADDR_RUNLOCK(ifp); if (ifma != NULL) error = EADDRINUSE; else @@ -2762,7 +2762,7 @@ again: } addrs = 0; - IF_ADDR_LOCK(ifp); + IF_ADDR_RLOCK(ifp); TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) { struct sockaddr *sa = ifa->ifa_addr; @@ -2794,7 +2794,7 @@ again: if (sbuf_error(sb) == 0) valid_len = sbuf_len(sb); } - IF_ADDR_UNLOCK(ifp); + IF_ADDR_RUNLOCK(ifp); if (addrs == 0) { bzero((caddr_t)&ifr.ifr_addr, sizeof(ifr.ifr_addr)); sbuf_bcat(sb, &ifr, sizeof(ifr)); @@ -2952,13 +2952,13 @@ if_addmulti(struct ifnet *ifp, struct sockaddr *sa, * If the address is already present, return a new reference to it; * otherwise, allocate storage and set up a new address. */ - IF_ADDR_LOCK(ifp); + IF_ADDR_WLOCK(ifp); ifma = if_findmulti(ifp, sa); if (ifma != NULL) { ifma->ifma_refcount++; if (retifma != NULL) *retifma = ifma; - IF_ADDR_UNLOCK(ifp); + IF_ADDR_WUNLOCK(ifp); return (0); } @@ -3024,7 +3024,7 @@ if_addmulti(struct ifnet *ifp, struct sockaddr *sa, * pointer is still valid. */ rt_newmaddrmsg(RTM_NEWMADDR, ifma); - IF_ADDR_UNLOCK(ifp); + IF_ADDR_WUNLOCK(ifp); /* * We are certain we have added something, so call down to the @@ -3044,7 +3044,7 @@ free_llsa_out: free(llsa, M_IFMADDR); unlock_out: - IF_ADDR_UNLOCK(ifp); + IF_ADDR_WUNLOCK(ifp); return (error); } @@ -3078,12 +3078,12 @@ if_delmulti(struct ifnet *ifp, struct sockaddr *sa) if (ifp == NULL) return (ENOENT); - IF_ADDR_LOCK(ifp); + IF_ADDR_WLOCK(ifp); lastref = 0; ifma = if_findmulti(ifp, sa); if (ifma != NULL) lastref = if_delmulti_locked(ifp, ifma, 0); - IF_ADDR_UNLOCK(ifp); + IF_ADDR_WUNLOCK(ifp); if (ifma == NULL) return (ENOENT); @@ -3105,10 +3105,10 @@ if_delallmulti(struct ifnet *ifp) struct ifmultiaddr *ifma; struct ifmultiaddr *next; - IF_ADDR_LOCK(ifp); + IF_ADDR_WLOCK(ifp); TAILQ_FOREACH_SAFE(ifma, &ifp->if_multiaddrs, ifma_link, next) if_delmulti_locked(ifp, ifma, 0); - IF_ADDR_UNLOCK(ifp); + IF_ADDR_WUNLOCK(ifp); } /* @@ -3145,7 +3145,7 @@ if_delmulti_ifma(struct ifmultiaddr *ifma) * If and only if the ifnet instance exists: Acquire the address lock. */ if (ifp != NULL) - IF_ADDR_LOCK(ifp); + IF_ADDR_WLOCK(ifp); lastref = if_delmulti_locked(ifp, ifma, 0); @@ -3155,7 +3155,7 @@ if_delmulti_ifma(struct ifmultiaddr *ifma) * Release the address lock. * If the group was left: update the hardware hash filter. */ - IF_ADDR_UNLOCK(ifp); + IF_ADDR_WUNLOCK(ifp); if (lastref && ifp->if_ioctl != NULL) { (void)(*ifp->if_ioctl)(ifp, SIOCDELMULTI, 0); } @@ -3177,7 +3177,7 @@ if_delmulti_locked(struct ifnet *ifp, struct ifmultiaddr *ifma, int detaching) if (ifp != NULL && ifma->ifma_ifp != NULL) { KASSERT(ifma->ifma_ifp == ifp, ("%s: inconsistent ifp %p", __func__, ifp)); - IF_ADDR_LOCK_ASSERT(ifp); + IF_ADDR_WLOCK_ASSERT(ifp); } ifp = ifma->ifma_ifp; @@ -3250,14 +3250,14 @@ if_setlladdr(struct ifnet *ifp, const u_char *lladdr, int len) struct ifaddr *ifa; struct ifreq ifr; - IF_ADDR_LOCK(ifp); + IF_ADDR_RLOCK(ifp); ifa = ifp->if_addr; if (ifa == NULL) { - IF_ADDR_UNLOCK(ifp); + IF_ADDR_RUNLOCK(ifp); return (EINVAL); } ifa_ref(ifa); - IF_ADDR_UNLOCK(ifp); + IF_ADDR_RUNLOCK(ifp); sdl = (struct sockaddr_dl *)ifa->ifa_addr; if (sdl == NULL) { ifa_free(ifa); diff --git a/sys/net/rtsock.c b/sys/net/rtsock.c index 3520824..acc4817 100644 --- a/sys/net/rtsock.c +++ b/sys/net/rtsock.c @@ -456,7 +456,7 @@ rtm_get_jailed(struct rt_addrinfo *info, struct ifnet *ifp, * Try to find an address on the given outgoing interface * that belongs to the jail. */ - IF_ADDR_LOCK(ifp); + IF_ADDR_RLOCK(ifp); TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) { struct sockaddr *sa; sa = ifa->ifa_addr; @@ -468,7 +468,7 @@ rtm_get_jailed(struct rt_addrinfo *info, struct ifnet *ifp, break; } } - IF_ADDR_UNLOCK(ifp); + IF_ADDR_RUNLOCK(ifp); if (!found) { /* * As a last resort return the 'default' jail address. @@ -498,7 +498,7 @@ rtm_get_jailed(struct rt_addrinfo *info, struct ifnet *ifp, * Try to find an address on the given outgoing interface * that belongs to the jail. */ - IF_ADDR_LOCK(ifp); + IF_ADDR_RLOCK(ifp); TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) { struct sockaddr *sa; sa = ifa->ifa_addr; @@ -511,7 +511,7 @@ rtm_get_jailed(struct rt_addrinfo *info, struct ifnet *ifp, break; } } - IF_ADDR_UNLOCK(ifp); + IF_ADDR_RUNLOCK(ifp); if (!found) { /* * As a last resort return the 'default' jail address. @@ -1547,7 +1547,7 @@ sysctl_iflist(int af, struct walkarg *w) TAILQ_FOREACH(ifp, &V_ifnet, if_link) { if (w->w_arg && w->w_arg != ifp->if_index) continue; - IF_ADDR_LOCK(ifp); + IF_ADDR_RLOCK(ifp); ifa = ifp->if_addr; info.rti_info[RTAX_IFP] = ifa->ifa_addr; len = rt_msg2(RTM_IFINFO, &info, NULL, w); @@ -1614,13 +1614,13 @@ sysctl_iflist(int af, struct walkarg *w) goto done; } } - IF_ADDR_UNLOCK(ifp); + IF_ADDR_RUNLOCK(ifp); info.rti_info[RTAX_IFA] = info.rti_info[RTAX_NETMASK] = info.rti_info[RTAX_BRD] = NULL; } done: if (ifp != NULL) - IF_ADDR_UNLOCK(ifp); + IF_ADDR_RUNLOCK(ifp); IFNET_RUNLOCK(); return (error); } @@ -1641,7 +1641,7 @@ sysctl_ifmalist(int af, struct walkarg *w) continue; ifa = ifp->if_addr; info.rti_info[RTAX_IFP] = ifa ? ifa->ifa_addr : NULL; - IF_ADDR_LOCK(ifp); + IF_ADDR_RLOCK(ifp); TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { if (af && af != ifma->ifma_addr->sa_family) continue; @@ -1662,12 +1662,12 @@ sysctl_ifmalist(int af, struct walkarg *w) ifmam->ifmam_addrs = info.rti_addrs; error = SYSCTL_OUT(w->w_req, w->w_tmem, len); if (error) { - IF_ADDR_UNLOCK(ifp); + IF_ADDR_RUNLOCK(ifp); goto done; } } } - IF_ADDR_UNLOCK(ifp); + IF_ADDR_RUNLOCK(ifp); } done: IFNET_RUNLOCK(); |