linux-kernel - Re: [PATCH] ata: Add support for Long Logical Sectors and Long Physical Sectors

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Date:	Mon, 18 Aug 2008 19:06:29 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Matthew Wilcox <matthew@....cx>
Cc:	Jeff Garzik <jgarzik@...ox.com>, linux-kernel@...r.kernel.org,
	linux-ide@...r.kernel.org, Matt_Domsch@...l.com,
	Matthew Wilcox <willy@...ux.intel.com>
Subject: Re: [PATCH] ata: Add support for Long Logical Sectors and Long
 Physical Sectors

> +	static const char command_sect_size[256] = {
> +		[ ATA_CMD_CFA_TRANSLATE_SECTOR ] = DEVICE,

Should be a bit array so we can do a single fast test_bit()

> +	if (size == UNKNOWN && printk_ratelimit())
> +		printk("Unknown ata cmd %d, assuming 512 byte sector size\n",
> +				command);

or two bits ;)


Rest looks ok. I'll probably send a follow up patch to make most pata
drivers return "no" to anything but 512 until we can test them with real
devices.

Alan
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