linux-kernel - Re: [PATCH 09/10] Change table chaining layout

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Message-ID: <alpine.LFD.0.999.0710221248120.30120@woody.linux-foundation.org>
Date:	Mon, 22 Oct 2007 12:49:40 -0700 (PDT)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>
cc:	Jens Axboe <jens.axboe@...cle.com>,
	Linux Kernel Development <linux-kernel@...r.kernel.org>,
	mingo@...e.hu, Linux/m68k <linux-m68k@...r.kernel.org>
Subject: Re: [PATCH 09/10] Change table chaining layout



On Mon, 22 Oct 2007, Geert Uytterhoeven wrote:
>
> Better safe than sorry...
> 
> Is it possible that a chain entry pointer has bit 1 set on architectures
> (e.g. m68k) where the natural alignment of 32-bit quantities is _2_ bytes,
> not 4?

Better make sure that such alignment never happens... But no, I don't 
think it will, since these things would generally always have to be 
allocated with an allocator, and the *allocator* won't return 2-byte 
aligned data structures.

		Linus
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