From: Mark Stapp <mjs@voltanet.io>
Date: Thu, 20 Aug 2020 18:13:34 +0000 (-0400)
Subject: zebra: use smaller stream buffer for zapi route notifications
X-Git-Tag: base_7.6~258^2~6
X-Git-Url: https://git.puffer.fish/?a=commitdiff_plain;h=55e74ca925f0457bb42be4e26d8ff5d0e314edb6;p=matthieu%2Ffrr.git

zebra: use smaller stream buffer for zapi route notifications

The owner-notification zapi message is small; use a small buffer
for it.

Signed-off-by: Mark Stapp <mjs@voltanet.io>
---

diff --git a/lib/zclient.h b/lib/zclient.h
index 231fdad09b..d9237048bd 100644
--- a/lib/zclient.h
+++ b/lib/zclient.h
@@ -54,6 +54,7 @@ typedef uint16_t zebra_size_t;
 
 /* For input/output buffer to zebra. */
 #define ZEBRA_MAX_PACKET_SIZ          16384U
+#define ZEBRA_SMALL_PACKET_SIZE       200U
 
 /* Zebra header size. */
 #define ZEBRA_HEADER_SIZE             10
diff --git a/zebra/zapi_msg.c b/zebra/zapi_msg.c
index 1d68019909..f7c123231e 100644
--- a/zebra/zapi_msg.c
+++ b/zebra/zapi_msg.c
@@ -764,7 +764,11 @@ static int route_notify_internal(const struct prefix *p, int type,
 			"Notifying Owner: %s about prefix %pFX(%u) %d vrf: %u",
 			zebra_route_string(type), p, table_id, note, vrf_id);
 
-	s = stream_new(ZEBRA_MAX_PACKET_SIZ);
+	/* We're just allocating a small-ish buffer here, since we only
+	 * encode a small amount of data.
+	 */
+	s = stream_new(ZEBRA_SMALL_PACKET_SIZE);
+
 	stream_reset(s);
 
 	zclient_create_header(s, ZEBRA_ROUTE_NOTIFY_OWNER, vrf_id);