From: Steffen Klassert Date: Tue, 22 Jan 2013 00:01:28 +0000 (+0000) Subject: ipv4: Fix route refcount on pmtu discovery X-Git-Tag: v3.8-rc6~20^2~22 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b44108dbdbaa07c609bb5755e8dd6c2035236251;p=pandora-kernel.git ipv4: Fix route refcount on pmtu discovery git commit 9cb3a50c (ipv4: Invalidate the socket cached route on pmtu events if possible) introduced a refcount problem. We don't get a refcount on the route if we get it from__sk_dst_get(), but we need one if we want to reuse this route because __sk_dst_set() releases the refcount of the old route. This patch adds proper refcount handling for that case. We introduce a 'new' flag to indicate that we are going to use a new route and we release the old route only if we replace it by a new one. Reported-by: Julian Anastasov Signed-off-by: Steffen Klassert Signed-off-by: David S. Miller --- Reading git-diff-tree failed