From: "Timo Teräs" <timo.teras@iki.fi>
To: Herbert Xu <herbert@gondor.apana.org.au>
Cc: netdev@vger.kernel.org, "David S. Miller" <davem@davemloft.net>
Subject: Re: [PATCH 1/4] xfrm: increment genid before bumping state genids
Date: Wed, 31 Mar 2010 14:24:30 +0300 [thread overview]
Message-ID: <4BB330EE.5020006@iki.fi> (raw)
In-Reply-To: <20100331111949.GD12845@gondor.apana.org.au>
Herbert Xu wrote:
> On Wed, Mar 31, 2010 at 02:01:03PM +0300, Timo Teräs wrote:
>> If any other xfrm_state_insert place needs to invalidate old
>> states it needs an additional bumping call. So the bumping function
>> is the right place to increment the genid.
>
> Right. In fact, this thing doesn't need to be incremented on every
> insert. How about this patch?
>
> xfrm: Remove xfrm_state_genid
>
> The xfrm state genid only needs to be matched against the copy
> saved in xfrm_dst. So we don't need a global genid at all. In
> fact, we don't even need to initialise it.
>
> Based on observation by Timo Teräs.
Ah, yes. This is indeed better fix.
Thanks.
next prev parent reply other threads:[~2010-03-31 11:24 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-31 10:17 [PATCH 0/4] xfrm fixes and flow structurization Timo Teras
2010-03-31 10:17 ` Timo Teras
2010-03-31 10:17 ` [PATCH 1/4] xfrm: increment genid before bumping state genids Timo Teras
2010-03-31 10:50 ` Herbert Xu
2010-03-31 10:55 ` Timo Teräs
2010-03-31 11:01 ` Timo Teräs
2010-03-31 11:19 ` Herbert Xu
2010-03-31 11:24 ` Timo Teräs [this message]
2010-03-31 10:17 ` [PATCH 2/4] xfrm_user: verify policy direction at XFRM_MSG_POLEXPIRE handler Timo Teras
2010-03-31 10:54 ` Herbert Xu
2010-03-31 10:17 ` [PATCH 3/4] xfrm: remove policy lock when accessing policy->walk.dead Timo Teras
2010-03-31 11:03 ` Herbert Xu
2010-03-31 13:06 ` jamal
2010-03-31 13:11 ` Herbert Xu
2010-03-31 13:26 ` Herbert Xu
2010-03-31 13:32 ` jamal
2010-03-31 13:39 ` jamal
2010-03-31 13:41 ` jamal
2010-03-31 13:56 ` Herbert Xu
2010-03-31 14:15 ` jamal
2010-03-31 20:54 ` David Miller
2010-03-31 13:55 ` Herbert Xu
2010-03-31 14:12 ` jamal
2010-03-31 14:15 ` Herbert Xu
2010-03-31 14:24 ` jamal
2010-03-31 14:29 ` Herbert Xu
2010-03-31 14:38 ` jamal
2010-03-31 20:57 ` David Miller
2010-04-01 0:22 ` Herbert Xu
2010-04-01 2:19 ` jamal
2010-04-01 10:53 ` jamal
2010-03-31 13:28 ` jamal
2010-03-31 13:53 ` Herbert Xu
2010-03-31 16:41 ` Patrick McHardy
2010-03-31 17:47 ` jamal
2010-04-01 11:24 ` Patrick McHardy
2010-03-31 20:52 ` David Miller
2010-03-31 10:17 ` [PATCH 4/4] flow: structurize flow cache Timo Teras
2010-03-31 11:21 ` Herbert Xu
2010-04-02 2:42 ` [PATCH 0/4] xfrm fixes and flow structurization David Miller
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