From 7a1e4ef606a814b124fc35136c2821484981e6cb Mon Sep 17 00:00:00 2001
From: "Robin H. Johnson" <robbat2@gentoo.org>
Date: Fri, 2 Mar 2012 19:54:48 +0000
Subject: Bug #405491: _exists can give a false negative since /proc/net/dev
 can be slow to update sometimes when interfaces are added rapidly. Use sysfs
 instead.

Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>
---
 net/iproute2.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'net/iproute2.sh')

diff --git a/net/iproute2.sh b/net/iproute2.sh
index 09912bf4..e06152f8 100644
--- a/net/iproute2.sh
+++ b/net/iproute2.sh
@@ -20,7 +20,7 @@ _down()
 
 _exists()
 {
-	grep -Eq "^[[:space:]]*${IFACE}:" /proc/net/dev
+	[ -e /sys/class/net/"$IFACE" ]
 }
 
 _ifindex()
-- 
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