Convert the per-interface address list lock from a mutex to a reader/writer
lock. Reviewed by: bz
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parent
1d89f286c4
commit
fbcebf7f71
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=229873
@ -520,7 +520,7 @@ static struct witness_order_list_entry order_lists[] = {
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{ "udpinp", &lock_class_rw },
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{ "in_multi_mtx", &lock_class_mtx_sleep },
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{ "igmp_mtx", &lock_class_mtx_sleep },
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{ "if_addr_mtx", &lock_class_mtx_sleep },
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{ "if_addr_lock", &lock_class_rw },
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{ NULL, NULL },
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/*
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* IPv6 multicast:
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@ -529,7 +529,7 @@ static struct witness_order_list_entry order_lists[] = {
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{ "udpinp", &lock_class_rw },
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{ "in6_multi_mtx", &lock_class_mtx_sleep },
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{ "mld_mtx", &lock_class_mtx_sleep },
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{ "if_addr_mtx", &lock_class_mtx_sleep },
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{ "if_addr_lock", &lock_class_rw },
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{ NULL, NULL },
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/*
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* UNIX Domain Sockets
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@ -189,11 +189,11 @@ struct ifnet {
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int if_afdata_initialized;
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struct rwlock if_afdata_lock;
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struct task if_linktask; /* task for link change events */
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struct mtx if_addr_mtx; /* mutex to protect address lists */
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struct rwlock if_addr_lock; /* lock to protect address lists */
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LIST_ENTRY(ifnet) if_clones; /* interfaces of a cloner */
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TAILQ_HEAD(, ifg_list) if_groups; /* linked list of groups per if */
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/* protected by if_addr_mtx */
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/* protected by if_addr_lock */
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void *if_pf_kif;
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void *if_lagg; /* lagg glue */
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char *if_description; /* interface description */
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@ -246,15 +246,14 @@ typedef void if_init_f_t(void *);
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/*
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* Locks for address lists on the network interface.
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*/
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#define IF_ADDR_LOCK_INIT(if) mtx_init(&(if)->if_addr_mtx, \
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"if_addr_mtx", NULL, MTX_DEF)
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#define IF_ADDR_LOCK_DESTROY(if) mtx_destroy(&(if)->if_addr_mtx)
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#define IF_ADDR_WLOCK(if) mtx_lock(&(if)->if_addr_mtx)
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#define IF_ADDR_WUNLOCK(if) mtx_unlock(&(if)->if_addr_mtx)
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#define IF_ADDR_RLOCK(if) mtx_lock(&(if)->if_addr_mtx)
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#define IF_ADDR_RUNLOCK(if) mtx_unlock(&(if)->if_addr_mtx)
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#define IF_ADDR_LOCK_ASSERT(if) mtx_assert(&(if)->if_addr_mtx, MA_OWNED)
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#define IF_ADDR_WLOCK_ASSERT(if) mtx_assert(&(if)->if_addr_mtx, MA_OWNED)
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#define IF_ADDR_LOCK_INIT(if) rw_init(&(if)->if_addr_lock, "if_addr_lock")
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#define IF_ADDR_LOCK_DESTROY(if) rw_destroy(&(if)->if_addr_lock)
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#define IF_ADDR_WLOCK(if) rw_wlock(&(if)->if_addr_lock)
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#define IF_ADDR_WUNLOCK(if) rw_wunlock(&(if)->if_addr_lock)
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#define IF_ADDR_RLOCK(if) rw_rlock(&(if)->if_addr_lock)
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#define IF_ADDR_RUNLOCK(if) rw_runlock(&(if)->if_addr_lock)
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#define IF_ADDR_LOCK_ASSERT(if) rw_assert(&(if)->if_addr_lock, RA_LOCKED)
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#define IF_ADDR_WLOCK_ASSERT(if) rw_assert(&(if)->if_addr_lock, RA_WLOCKED)
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/* XXX: Compat. */
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#define IF_ADDR_LOCK(if) IF_ADDR_WLOCK(if)
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#define IF_ADDR_UNLOCK(if) IF_ADDR_WUNLOCK(if)
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