Re: [IPV6]: Audit all ip6_dst_lookup/ip6_dst_store calls

From: David Miller
Date: Sun Jul 30 2006 - 18:41:59 EST


From: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Date: Sat, 29 Jul 2006 14:33:25 +1000

> [IPV6]: Audit all ip6_dst_lookup/ip6_dst_store calls
>
> The current users of ip6_dst_lookup can be divided into two classes:
>
> 1) The caller holds no locks and is in user-context (UDP).
> 2) The caller does not want to lookup the dst cache at all.
>
> The second class covers everyone except UDP because most people do
> the cache lookup directly before calling ip6_dst_lookup. This patch
> adds ip6_sk_dst_lookup for the first class.
>
> Similarly ip6_dst_store users can be divded into those that need to
> take the socket dst lock and those that don't. This patch adds
> __ip6_dst_store for those (everyone except UDP/datagram) that don't
> need an extra lock.
>
> Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>

Applied, thanks Herbert.
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