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net: ipmr: fix unresolved entry dumps

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[ Upstream commit eddf016b91 ]

If the skb space ends in an unresolved entry while dumping we'll miss
some unresolved entries. The reason is due to zeroing the entry counter
between dumping resolved and unresolved mfc entries. We should just
keep counting until the whole table is dumped and zero when we move to
the next as we have a separate table counter.

Reported-by: Colin Ian King <colin.king@canonical.com>
Fixes: 8fb472c09b ("ipmr: improve hash scalability")
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Nikolay Aleksandrov 2018-10-17 22:34:34 +03:00 committed by Greg Kroah-Hartman
parent 4ca72d6336
commit 71944eb542
1 changed files with 0 additions and 2 deletions
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2
net/ipv4/ipmr.c
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@ -2499,8 +2499,6 @@ static int ipmr_rtm_dumproute(struct sk_buff *skb, struct netlink_callback *cb)
next_entry:
e++;
}
e = 0;
s_e = 0;
spin_lock_bh(&mfc_unres_lock);
list_for_each_entry(mfc, &mrt->mfc_unres_queue, list) {