linux-kernel - Re: [PATCH 1/2] rhashtable: fix insertion of in rhltable when duplicate found.

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Message-ID: <20180329054038.GB21028@gondor.apana.org.au>
Date:   Thu, 29 Mar 2018 13:40:38 +0800
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     NeilBrown <neilb@...e.com>
Cc:     Thomas Graf <tgraf@...g.ch>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] rhashtable: fix insertion of in rhltable when
 duplicate found.

On Thu, Mar 29, 2018 at 12:19:09PM +1100, NeilBrown wrote:
> When rhltable_insert() finds an entry with the same key,
> it splices the new entry at the start of a list of entries with the
> same key.
> It stores the address of the new object in *pprev, but in general this
> is *not* the location where the match was found (though in a common
> case where the hash chain has one element, it will be).
> To fix this, pprev should be updated every time we find an object that
> doesn't match.
> 
> This patch changes the behaviour for non-slow insertion in that now
> insertion happens at the end of a chain rather than at the head.
> I don't think this is an important change.
> 
> Signed-off-by: NeilBrown <neilb@...e.com>

Thanks.  But Paul Blakey beat you to it :)

https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git/commit/?id=d3dcf8eb615537526bd42ff27a081d46d337816e
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
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