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Date:	Mon, 29 Mar 2010 15:03:26 +0300
From:	Timo Teräs <>
To:	Herbert Xu <>
CC:	David Miller <>,
Subject: Re: [PATCH RFC 1/2] flow: virtualize get and entry deletion methods

Herbert Xu wrote:
> I'm not talking about the flow cache.  The current flow cache
> code doesn't even take the lock.
> I'm talking about the other places that you have to convert in
> order to make this into an atomic_t.

Did you check the other places?

All other places do:
  fox x policies:
    pol_dead |= x->walk.dead;
  if pol_dead

or similar.

And some cases don't even bother to lock the policy currently
when reading walk.dead.

All of the code treats the walk.dead as a hint. It does not need
strong synchronization with a lock.
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