From: Eric Dumazet <edumazet@google.com>
Date: Mon, 25 Jun 2012 22:37:19 +0000 (-0700)
Subject: ipv6: fib: fix fib dump restart
X-Git-Tag: v3.2.68~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ee558c90853a71c318a2d15ba2e747623fa0af86;p=pandora-kernel.git

ipv6: fib: fix fib dump restart

commit fa809e2fd6e317226c046202a88520962672eac0 upstream.

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>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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