linux-kernel - Re: [PATCH 03/16] dma-debug: add hash functions for dma_debug

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Message-Id: <20090113005118.82f5037b.akpm@linux-foundation.org>
Date:	Tue, 13 Jan 2009 00:51:18 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Joerg Roedel <joerg.roedel@....com>
Cc:	linux-kernel@...r.kernel.org, mingo@...hat.com,
	dwmw2@...radead.org, fujita.tomonori@....ntt.co.jp,
	netdev@...r.kernel.org, iommu@...ts.linux-foundation.org
Subject: Re: [PATCH 03/16] dma-debug: add hash functions for
 dma_debug_entries

On Fri, 9 Jan 2009 17:19:17 +0100 Joerg Roedel <joerg.roedel@....com> wrote:

> +struct hash_bucket {
> +	struct list_head list;
> +	spinlock_t lock;
> +} ____cacheline_aligned;

__cacheline_aligned_in_smp.

This all looks like an exotically large amount of code for a debug thingy?
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