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ipv6: fib: fix fib dump restart

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Commit 2bec5a369e (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>
This commit is contained in:
Eric Dumazet 2012-06-25 15:37:19 -07:00 • committed by David S. Miller
parent 8b8e4bc039
commit fa809e2fd6
1 changed files with 2 additions and 2 deletions
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4
net/ipv6/ip6_fib.c
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@ -1349,8 +1349,8 @@ static int fib6_walk_continue(struct fib6_walker_t *w)
if (w->leaf && fn->fn_flags & RTN_RTINFO) { if (w->leaf && fn->fn_flags & RTN_RTINFO) {
int err; int err;
if (w->count < w->skip) { if (w->skip) {
w->count++; w->skip--;
continue; continue;
} }