diff options
| author | bz <bz@FreeBSD.org> | 2010-02-20 21:45:04 +0000 |
|---|---|---|
| committer | bz <bz@FreeBSD.org> | 2010-02-20 21:45:04 +0000 |
| commit | b8a1e8dec8db5b39c15a1c70fd6f0164adb126e6 (patch) | |
| tree | 74bbd9c7dc35911ff55058c173993d42e5e7bfdf /sys/netinet | |
| parent | 77e8f746fc7836ec49e92916ef771aefe1abc569 (diff) | |
| download | FreeBSD-src-b8a1e8dec8db5b39c15a1c70fd6f0164adb126e6.zip FreeBSD-src-b8a1e8dec8db5b39c15a1c70fd6f0164adb126e6.tar.gz | |
Upon virtual network stack teardown properly release the TCP syncache
resources.
Sponsored by: ISPsystem
Reviewed by: rwatson
MFC After: 5 days
Diffstat (limited to 'sys/netinet')
| -rw-r--r-- | sys/netinet/tcp_syncache.c | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/sys/netinet/tcp_syncache.c b/sys/netinet/tcp_syncache.c index 16c4f67..4d9d487 100644 --- a/sys/netinet/tcp_syncache.c +++ b/sys/netinet/tcp_syncache.c @@ -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 |
