summaryrefslogtreecommitdiff
path: root/net
diff options
context:
space:
mode:
authorKumar Sundararajan <kumar@fb.com>2014-04-24 09:48:53 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-05-31 13:20:35 -0700
commit321dbc0d61b02e47f0159e8f194ab25b85bae04d (patch)
treef29b9fe95a376253ea6415740bd240b888bd2b5c /net
parent657cad06d60c2c7f032257125683627fb5480d21 (diff)
downloadlwn-321dbc0d61b02e47f0159e8f194ab25b85bae04d.tar.gz
lwn-321dbc0d61b02e47f0159e8f194ab25b85bae04d.zip
ipv6: fib: fix fib dump restart
[ Upstream commit 1c2658545816088477e91860c3a645053719cb54 ] When the ipv6 fib changes during a table dump, the walk is restarted and the number of nodes dumped are skipped. But the existing code doesn't advance to the next node after a node is skipped. This can cause the dump to loop or produce lots of duplicates when the fib is modified during the dump. This change advances the walk to the next node if the current node is skipped after a restart. Signed-off-by: Kumar Sundararajan <kumar@fb.com> Signed-off-by: Chris Mason <clm@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net')
-rw-r--r--net/ipv6/ip6_fib.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index 075602fc6b6a..1e55f5eba185 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -1418,7 +1418,7 @@ static int fib6_walk_continue(struct fib6_walker_t *w)
if (w->skip) {
w->skip--;
- continue;
+ goto skip;
}
err = w->func(w);
@@ -1428,6 +1428,7 @@ static int fib6_walk_continue(struct fib6_walker_t *w)
w->count++;
continue;
}
+skip:
w->state = FWS_U;
case FWS_U:
if (fn == w->root)