Date: Sat, 13 Sep 2014 18:41:25 +0000 (UTC) From: "Alexander V. Chernikov" <melifaro@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r271544 - head/sys/net Message-ID: <201409131841.s8DIfPkU078918@svn.freebsd.org>
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Author: melifaro Date: Sat Sep 13 18:41:24 2014 New Revision: 271544 URL: http://svnweb.freebsd.org/changeset/base/271544 Log: Switch if_vlan(4) to rmlock. MFC after: 2 weeks Modified: head/sys/net/if_vlan.c Modified: head/sys/net/if_vlan.c ============================================================================== --- head/sys/net/if_vlan.c Sat Sep 13 18:40:12 2014 (r271543) +++ head/sys/net/if_vlan.c Sat Sep 13 18:41:24 2014 (r271544) @@ -51,7 +51,7 @@ __FBSDID("$FreeBSD$"); #include <sys/malloc.h> #include <sys/mbuf.h> #include <sys/module.h> -#include <sys/rwlock.h> +#include <sys/rmlock.h> #include <sys/queue.h> #include <sys/socket.h> #include <sys/sockio.h> @@ -84,7 +84,7 @@ LIST_HEAD(ifvlanhead, ifvlan); struct ifvlantrunk { struct ifnet *parent; /* parent interface of this trunk */ - struct rwlock rw; + struct rmlock lock; #ifdef VLAN_ARRAY #define VLAN_ARRAY_SIZE (EVL_VLID_MASK + 1) struct ifvlan *vlans[VLAN_ARRAY_SIZE]; /* static table */ @@ -175,14 +175,15 @@ static struct sx ifv_lock; #define VLAN_LOCK_ASSERT() sx_assert(&ifv_lock, SA_LOCKED) #define VLAN_LOCK() sx_xlock(&ifv_lock) #define VLAN_UNLOCK() sx_xunlock(&ifv_lock) -#define TRUNK_LOCK_INIT(trunk) rw_init(&(trunk)->rw, vlanname) -#define TRUNK_LOCK_DESTROY(trunk) rw_destroy(&(trunk)->rw) -#define TRUNK_LOCK(trunk) rw_wlock(&(trunk)->rw) -#define TRUNK_UNLOCK(trunk) rw_wunlock(&(trunk)->rw) -#define TRUNK_LOCK_ASSERT(trunk) rw_assert(&(trunk)->rw, RA_WLOCKED) -#define TRUNK_RLOCK(trunk) rw_rlock(&(trunk)->rw) -#define TRUNK_RUNLOCK(trunk) rw_runlock(&(trunk)->rw) -#define TRUNK_LOCK_RASSERT(trunk) rw_assert(&(trunk)->rw, RA_RLOCKED) +#define TRUNK_LOCK_INIT(trunk) rm_init(&(trunk)->lock, vlanname) +#define TRUNK_LOCK_DESTROY(trunk) rm_destroy(&(trunk)->lock) +#define TRUNK_LOCK(trunk) rm_wlock(&(trunk)->lock) +#define TRUNK_UNLOCK(trunk) rm_wunlock(&(trunk)->lock) +#define TRUNK_LOCK_ASSERT(trunk) rm_assert(&(trunk)->lock, RA_WLOCKED) +#define TRUNK_RLOCK(trunk) rm_rlock(&(trunk)->lock, &tracker) +#define TRUNK_RUNLOCK(trunk) rm_runlock(&(trunk)->lock, &tracker) +#define TRUNK_LOCK_RASSERT(trunk) rm_assert(&(trunk)->lock, RA_RLOCKED) +#define TRUNK_LOCK_READER struct rm_priotracker tracker #ifndef VLAN_ARRAY static void vlan_inithash(struct ifvlantrunk *trunk); @@ -687,6 +688,7 @@ vlan_devat(struct ifnet *ifp, uint16_t v { struct ifvlantrunk *trunk; struct ifvlan *ifv; + TRUNK_LOCK_READER; trunk = ifp->if_vlantrunk; if (trunk == NULL) @@ -1163,6 +1165,7 @@ vlan_input(struct ifnet *ifp, struct mbu { struct ifvlantrunk *trunk = ifp->if_vlantrunk; struct ifvlan *ifv; + TRUNK_LOCK_READER; uint16_t vid; KASSERT(trunk != NULL, ("%s: no trunk", __func__));
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