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.

13 files changed, 14 insertions, 21 deletions

diff --git a/sys/netatm/atm_cm.c b/sys/netatm/atm_cm.c
index aeb32ca..733c045 100644
--- a/sys/netatm/atm_cm.c
+++ b/sys/netatm/atm_cm.c
@@ -105,11 +105,13 @@ atm_cm_init(void)
 
 	atm_connection_zone = uma_zcreate("atm connection",
 	    sizeof(Atm_connection), NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0);
-	uma_zone_set_max(atm_connection_zone, 100);
+	if (atm_connection_zone == NULL)
+		panic("atm_connection_zone");
 
 	atm_connvc_zone = uma_zcreate("atm connvc", sizeof(Atm_connvc), NULL,
 	    NULL, NULL, NULL, UMA_ALIGN_PTR, 0);
-	uma_zone_set_max(atm_connvc_zone, 100);
+	if (atm_connvc_zone == NULL)
+		panic("atm_connvc_zone");
 }
 
 /*
diff --git a/sys/netatm/atm_socket.c b/sys/netatm/atm_socket.c
index 333c7d6..34b9d09 100644
--- a/sys/netatm/atm_socket.c
+++ b/sys/netatm/atm_socket.c
@@ -78,7 +78,6 @@ atm_sock_init(void)
 	    NULL, NULL, UMA_ALIGN_PTR, 0);
 	if (atm_pcb_zone == NULL)
 		panic("atm_sock_init: unable to initialize atm_pcb_zone");
-	uma_zone_set_max(atm_pcb_zone, 100);
 }
 
 /*
diff --git a/sys/netatm/atm_subr.c b/sys/netatm/atm_subr.c
index 901de8f..4e72a03 100644
--- a/sys/netatm/atm_subr.c
+++ b/sys/netatm/atm_subr.c
@@ -114,13 +114,11 @@ atm_initialize()
 	    UMA_ALIGN_PTR, 0);
 	if (atm_attributes_zone == NULL)
 		panic("atm_initialize: unable to create attributes zone");
-	uma_zone_set_max(atm_attributes_zone, 100);
 
 	atm_stackq_zone = uma_zcreate("atm stackq", sizeof(struct stackq_entry),
 	    NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0);
 	if (atm_stackq_zone == NULL)
 		panic("atm_initialize: unable to create stackq zone");
-	uma_zone_set_max(atm_stackq_zone, 10);
 
 	atm_intrq.ifq_maxlen = ATM_INTRQ_MAX;
 	mtx_init(&atm_intrq.ifq_mtx, "atm_inq", NULL, MTX_DEF);
diff --git a/sys/netatm/ipatm/ipatm_load.c b/sys/netatm/ipatm/ipatm_load.c
index 3cab0c5a..be9560c 100644
--- a/sys/netatm/ipatm/ipatm_load.c
+++ b/sys/netatm/ipatm/ipatm_load.c
@@ -402,13 +402,11 @@ ipatm_start()
 	    NULL, NULL, NULL, UMA_ALIGN_PTR, 0);
 	if (ipatm_vc_zone == NULL)
 		panic("ipatm_start: unable to create ipatm_vc_zone");
-	uma_zone_set_max(ipatm_vc_zone, 100);
 		
 	ipatm_nif_zone = uma_zcreate("ipatm nif", sizeof(struct ip_nif), NULL,
 	    NULL, NULL, NULL, UMA_ALIGN_PTR, 0);
 	if (ipatm_nif_zone == NULL)
 		panic("ipatm_start: unable to create ipatm_nif_zone");
-	uma_zone_set_max(ipatm_nif_zone, 52);
 
 	/*
 	 * Register ourselves as a network convergence module
diff --git a/sys/netatm/sigpvc/sigpvc_if.c b/sys/netatm/sigpvc/sigpvc_if.c
index 9de14cb..dbcc215 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
diff --git a/sys/netatm/spans/spans_arp.c b/sys/netatm/spans/spans_arp.c
index d8ff78b..9e8666c 100644
--- a/sys/netatm/spans/spans_arp.c
+++ b/sys/netatm/spans/spans_arp.c
@@ -365,7 +365,8 @@ spansarp_start()
 
 	spansarp_zone = uma_zcreate("spansarp", sizeof(struct spansarp),
 	    NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0);
-	uma_zone_set_max(spansarp_zone, 100);
+	if (spansarp_zone == NULL)
+		panic("spansarp_zone");
 }
 
 /*
diff --git a/sys/netatm/spans/spans_cls.c b/sys/netatm/spans/spans_cls.c
index bfd6c24..c135b33 100644
--- a/sys/netatm/spans/spans_cls.c
+++ b/sys/netatm/spans/spans_cls.c
@@ -250,7 +250,8 @@ spanscls_start()
 
 	spanscls_zone = uma_zcreate("spanscls", sizeof(struct spanscls),
 	    NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0);
-	uma_zone_set_max(spanscls_zone, 100);
+	if (spanscls_zone == NULL)
+		panic("spanscls_zone");
 
 	/*
 	 * Fill in union fields
diff --git a/sys/netatm/spans/spans_if.c b/sys/netatm/spans/spans_if.c
index 3ea781c..b0ae569 100644
--- a/sys/netatm/spans/spans_if.c
+++ b/sys/netatm/spans/spans_if.c
@@ -126,11 +126,13 @@ spans_start()
 
 	spans_vc_zone = uma_zcreate("spans vc", sizeof(struct spans_vccb),
 	    NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0);
-	uma_zone_set_max(spans_vc_zone, 50);
+	if (spans_vc_zone == NULL)
+		panic("spans_vc_zone");
 
 	spans_msg_zone = uma_zcreate("spans msg", sizeof(spans_msg), NULL,
 	    NULL, NULL, NULL, UMA_ALIGN_PTR, 0);
-	uma_zone_set_max(spans_msg_zone, 50);
+	if (spans_msg_zone == NULL)
+		panic("spans_msg_zone");
 
 	/*
 	 * Allocate protocol definition structure
diff --git a/sys/netatm/uni/sscf_uni.c b/sys/netatm/uni/sscf_uni.c
index dc51e72..47ed863 100644
--- a/sys/netatm/uni/sscf_uni.c
+++ b/sys/netatm/uni/sscf_uni.c
@@ -117,8 +117,6 @@ sscf_uni_start()
 	if (sscf_uni_zone == NULL)
 		panic("sscf_uni_start: uma_zcreate");
 
-	uma_zone_set_max(sscf_uni_zone, 100);
-
 	/*
 	 * Register stack service
 	 */
diff --git a/sys/netatm/uni/sscop.c b/sys/netatm/uni/sscop.c
index 5d0426b..cc424be 100644
--- a/sys/netatm/uni/sscop.c
+++ b/sys/netatm/uni/sscop.c
@@ -152,7 +152,6 @@ sscop_start()
 	    NULL, NULL, UMA_ALIGN_PTR, 0);
 	if (sscop_zone == NULL)
 		panic("sscop_start: uma_zcreate");
-	uma_zone_set_max(sscop_zone, 100);
 
 	/*
 	 * Register stack service
diff --git a/sys/netatm/uni/uniarp.c b/sys/netatm/uni/uniarp.c
index 9a3ea78..a34c31e 100644
--- a/sys/netatm/uni/uniarp.c
+++ b/sys/netatm/uni/uniarp.c
@@ -126,7 +126,6 @@ uniarp_start()
 	    NULL, NULL, UMA_ALIGN_PTR, 0);
 	if (uniarp_zone == NULL)
 		panic("uniarp_start: uma_zcreate");
-	uma_zone_set_max(uniarp_zone, 200);
 
 	/*
 	 * Register our endpoint
diff --git a/sys/netatm/uni/uniip.c b/sys/netatm/uni/uniip.c
index 60f02b2..1e07d75 100644
--- a/sys/netatm/uni/uniip.c
+++ b/sys/netatm/uni/uniip.c
@@ -105,7 +105,6 @@ uniip_start()
 	    NULL, NULL, UMA_ALIGN_PTR, 0);
 	if (uniip_zone == NULL)
 		panic("uniip_start: uma_zcreate");
-	uma_zone_set_max(uniip_zone, 100);
 
 	/*
 	 * Tell arp to initialize stuff
diff --git a/sys/netatm/uni/unisig_if.c b/sys/netatm/uni/unisig_if.c
index 6005932b..9853b8a 100644
--- a/sys/netatm/uni/unisig_if.c
+++ b/sys/netatm/uni/unisig_if.c
@@ -169,10 +169,6 @@ unisig_start()
 	if (unisig_ie_zone == NULL)
 		panic("unisig_start: uma_zcreate failed to create ie zone");
 	
-	uma_zone_set_max(unisig_vc_zone, 50);
-	uma_zone_set_max(unisig_msg_zone, 50);
-	uma_zone_set_max(unisig_ie_zone, 50);
-
 	/*
 	 * Register ourselves with system
 	 */