From d06bfaa1a96c6da560cc7f02256c7b4f8d4607ef Mon Sep 17 00:00:00 2001 From: pjd Date: Sun, 10 Sep 2006 09:11:54 +0000 Subject: Delay an orphan event if provider has still in-flight I/O requests. This way GEOM classes can safely detach from provider when an orphan event is received. This fixes 'detach with active requests' panic for gstripe/gconcat under load. PR: kern/102766 Submitted by: mjacob OK'ed by: phk MFC after: 1 week --- sys/geom/geom_event.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'sys/geom') diff --git a/sys/geom/geom_event.c b/sys/geom/geom_event.c index 32351c3..5288e32 100644 --- a/sys/geom/geom_event.c +++ b/sys/geom/geom_event.c @@ -183,7 +183,10 @@ one_event(void) g_topology_lock(); for (;;) { mtx_lock(&g_eventlock); - pp = TAILQ_FIRST(&g_doorstep); + TAILQ_FOREACH(pp, &g_doorstep, orphan) { + if (pp->nstart == pp->nend) + break; + } if (pp != NULL) { G_VALID_PROVIDER(pp); TAILQ_REMOVE(&g_doorstep, pp, orphan); -- cgit v1.1