linux-kernel - Re: [PATCH 3/3] efi: Make efi virtual runtime map passing more robust

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Message-ID: <20131218114229.GA12222@pd.tnic>
Date:	Wed, 18 Dec 2013 12:42:29 +0100
From:	Borislav Petkov <bp@...en8.de>
To:	Dave Young <dyoung@...hat.com>
Cc:	Linux EFI <linux-efi@...r.kernel.org>, X86 ML <x86@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Borislav Petkov <bp@...e.de>,
	Matt Fleming <matt@...sole-pimps.org>,
	Matthew Garrett <mjg59@...f.ucam.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	James Bottomley <James.Bottomley@...senPartnership.com>,
	Vivek Goyal <vgoyal@...hat.com>,
	Toshi Kani <toshi.kani@...com>,
	Arjan van de Ven <arjan@...ux.intel.com>
Subject: Re: [PATCH 3/3] efi: Make efi virtual runtime map passing more robust

On Wed, Dec 18, 2013 at 05:07:57PM +0800, Dave Young wrote:
> How about firstly count the md numbers in the 1st loop, then
> get/roundup the total size, alloc the pages, map the mds one by one in
> another loop.

No need as most systems would never need to reallocate. Even on Toshi's
big system, the mds fit in less than one page - having a second one is
an additional safeguard, i.e. 2 pages should be more than enough in the
majority of the cases.

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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