From fa809e2fd6e317226c046202a88520962672eac0 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Mon, 25 Jun 2012 15:37:19 -0700
Subject: [PATCH] ipv6: fib: fix fib dump restart
Commit 2bec5a369ee79576a3 (ipv6: fib: fix crash when changing large fib
while dumping it) introduced ability to restart the dump at tree root,
but failed to skip correctly a count of already dumped entries. Code
didn't match Patrick intent.
We must skip exactly the number of already dumped entries.
Note that like other /proc/net files or netlink producers, we could
still dump some duplicates entries.
Reported-by: Debabrata Banerjee <dbavatar@gmail.com>
Reported-by: Josh Hunt <johunt@akamai.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/ipv6/ip6_fib.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index 74c21b924a790..6083276619605 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -1349,8 +1349,8 @@ static int fib6_walk_continue(struct fib6_walker_t *w)
if (w->leaf && fn->fn_flags & RTN_RTINFO) {
int err;
- if (w->count < w->skip) {
- w->count++;
+ if (w->skip) {
+ w->skip--;
continue;
}
--
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