Remove the zone limits for all the zones used in the ATM code.

These were a left over from when the private memory pools were
converted to use uma zones. The limit of UMA zones, however,
works differently. When a zone is limited to only one or two pages
than, on multi-cpu systems, processes can get stuck on the zonelimit,
because all remaining free items are in caches of other CPUs.

Also add rudimentary error handling in some places (panic) when a zone
cannot be created.

1 files changed, 2 insertions, 1 deletions

diff --git a/sys/netatm/sigpvc/sigpvc_if.c b/sys/netatm/sigpvc/sigpvc_if.c
index 9de14cbeb716..dbcc215e5088 100644
--- a/sys/netatm/sigpvc/sigpvc_if.c
+++ b/sys/netatm/sigpvc/sigpvc_if.c
@@ -145,7 +145,8 @@ sigpvc_start()
 
 	sigpvc_vc_zone = uma_zcreate("sigpvc vc", sizeof(struct sigpvc_vccb),
 	    NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0);
-	uma_zone_set_max(sigpvc_vc_zone, 50);		
+	if (sigpvc_vc_zone == NULL)
+		return (ENOMEM);
  
 	/*
 	 * Register ourselves with system