svn commit: r205755 - stable/8/sys/netinet
Bjoern A. Zeeb
bz at FreeBSD.org
Sat Mar 27 17:36:53 UTC 2010
Author: bz
Date: Sat Mar 27 17:36:52 2010
New Revision: 205755
URL: http://svn.freebsd.org/changeset/base/205755
Log:
MFC r204143:
Upon virtual network stack teardown properly release the TCP syncache
resources.
Reviewed by: rwatson
Modified:
stable/8/sys/netinet/tcp_syncache.c
Directory Properties:
stable/8/sys/ (props changed)
stable/8/sys/amd64/include/xen/ (props changed)
stable/8/sys/cddl/contrib/opensolaris/ (props changed)
stable/8/sys/contrib/dev/acpica/ (props changed)
stable/8/sys/contrib/pf/ (props changed)
stable/8/sys/dev/xen/xenpci/ (props changed)
Modified: stable/8/sys/netinet/tcp_syncache.c
==============================================================================
--- stable/8/sys/netinet/tcp_syncache.c Sat Mar 27 17:34:57 2010 (r205754)
+++ stable/8/sys/netinet/tcp_syncache.c Sat Mar 27 17:36:52 2010 (r205755)
@@ -278,11 +278,33 @@ syncache_init(void)
void
syncache_destroy(void)
{
+ struct syncache_head *sch;
+ struct syncache *sc, *nsc;
+ int i;
+
+ /* Cleanup hash buckets: stop timers, free entries, destroy locks. */
+ for (i = 0; i < V_tcp_syncache.hashsize; i++) {
+
+ sch = &V_tcp_syncache.hashbase[i];
+ callout_drain(&sch->sch_timer);
+
+ SCH_LOCK(sch);
+ TAILQ_FOREACH_SAFE(sc, &sch->sch_bucket, sc_hash, nsc)
+ syncache_drop(sc, sch);
+ SCH_UNLOCK(sch);
+ KASSERT(TAILQ_EMPTY(&sch->sch_bucket),
+ ("%s: sch->sch_bucket not empty", __func__));
+ KASSERT(sch->sch_length == 0, ("%s: sch->sch_length %d not 0",
+ __func__, sch->sch_length));
+ mtx_destroy(&sch->sch_mtx);
+ }
- /* XXX walk the cache, free remaining objects, stop timers */
+ KASSERT(V_tcp_syncache.cache_count == 0, ("%s: cache_count %d not 0",
+ __func__, V_tcp_syncache.cache_count));
+ /* Free the allocated global resources. */
uma_zdestroy(V_tcp_syncache.zone);
- FREE(V_tcp_syncache.hashbase, M_SYNCACHE);
+ free(V_tcp_syncache.hashbase, M_SYNCACHE);
}
#endif
More information about the svn-src-all
mailing list