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Message-ID: <4700F83F.9020300@trash.net>
Date: Mon, 01 Oct 2007 15:38:07 +0200
From: Patrick McHardy <kaber@...sh.net>
To: Corey Hickey <bugfood-ml@...ooh.org>
CC: netdev@...r.kernel.org
Subject: Re: [PATCH 05/10] Add divisor.
Corey Hickey wrote:
> Make hash divisor user-configurable.
>
> @@ -120,7 +121,7 @@ static __inline__ unsigned sfq_fold_hash(struct sfq_sched_data *q, u32 h, u32 h1
> /* Have we any rotation primitives? If not, WHY? */
> h ^= (h1<<pert) ^ (h1>>(0x1F - pert));
> h ^= h>>10;
> - return h & 0x3FF;
> + return h & (q->hash_divisor-1);
This assumes that hash_divisor is a power of two, but this is
not enforced anywhere.
-
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