linux-kernel - Re: [PATCH 3/4] EFI: Add support for variables longer than 1024 bytes

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Message-ID: <4EE92A97.5080606@zytor.com>
Date:	Wed, 14 Dec 2011 15:00:39 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Mike Waychison <mikew@...gle.com>
CC:	Matthew Garrett <mjg59@...f.ucam.org>,
	linux-kernel@...r.kernel.org, x86@...nel.org
Subject: Re: [PATCH 3/4] EFI: Add support for variables longer than 1024 bytes

On 12/14/2011 02:57 PM, Mike Waychison wrote:
> 
> Well,l we could *not* support returning all the data field for
> datasize > 1024, and simply truncate the field.  We are limited by
> PAGE_SIZE by sysfs here anyway (so we don't really want to have a
> variable size memcpy in efivar_show_raw).
> 

That may be the biggest reason to avoid sysfs.  As far as I know sysfs
doesn't allow seq_file to be used.

	-hpa
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