From: Borislav Petkov <bp-Gina5bIWoIWzQB+pC5nmwQ@public.gmane.org>
To: Dave Young <dyoung-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: Linux EFI <linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
X86 ML <x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
LKML <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Borislav Petkov <bp-l3A5Bk7waGM@public.gmane.org>,
Matt Fleming
<matt-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>,
Matthew Garrett <mjg59-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>,
"H. Peter Anvin" <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>,
James Bottomley
<James.Bottomley-d9PhHud1JfjCXq6kfMZ53/egYHeGw8Jk@public.gmane.org>,
Vivek Goyal <vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
Toshi Kani <toshi.kani-VXdhtT5mjnY@public.gmane.org>,
Arjan van de Ven <arjan-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
Subject: Re: [PATCH 3/3] efi: Make efi virtual runtime map passing more robust
Date: Wed, 18 Dec 2013 12:42:29 +0100 [thread overview]
Message-ID: <20131218114229.GA12222@pd.tnic> (raw)
In-Reply-To: <20131218090757.GA15594-je1gSBvt1TcFLmT5oZ11vB/sF2h8X+2i0E9HWUfgJXw@public.gmane.org>
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.
--
WARNING: multiple messages have this Message-ID (diff)
From: Borislav Petkov <bp@alien8.de>
To: Dave Young <dyoung@redhat.com>
Cc: Linux EFI <linux-efi@vger.kernel.org>, X86 ML <x86@kernel.org>,
LKML <linux-kernel@vger.kernel.org>, Borislav Petkov <bp@suse.de>,
Matt Fleming <matt@console-pimps.org>,
Matthew Garrett <mjg59@srcf.ucam.org>,
"H. Peter Anvin" <hpa@zytor.com>,
James Bottomley <James.Bottomley@HansenPartnership.com>,
Vivek Goyal <vgoyal@redhat.com>, Toshi Kani <toshi.kani@hp.com>,
Arjan van de Ven <arjan@linux.intel.com>
Subject: Re: [PATCH 3/3] efi: Make efi virtual runtime map passing more robust
Date: Wed, 18 Dec 2013 12:42:29 +0100 [thread overview]
Message-ID: <20131218114229.GA12222@pd.tnic> (raw)
In-Reply-To: <20131218090757.GA15594@dhcp-16-126.nay.redhat.com>
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.
--
next prev parent reply other threads:[~2013-12-18 11:42 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-16 23:36 [PATCH 0/3] EFI memmap fix Borislav Petkov
2013-12-16 23:36 ` Borislav Petkov
2013-12-16 23:36 ` [PATCH 1/3] x86, ptdump: Add the functionality to dump an arbitrary pagetable Borislav Petkov
[not found] ` <1387236997-26975-1-git-send-email-bp-Gina5bIWoIWzQB+pC5nmwQ@public.gmane.org>
2013-12-16 23:36 ` [PATCH 2/3] efi: Dump the EFI page table Borislav Petkov
2013-12-16 23:36 ` Borislav Petkov
2013-12-17 1:11 ` [PATCH 0/3] EFI memmap fix Toshi Kani
2013-12-17 1:11 ` Toshi Kani
2013-12-16 23:36 ` [PATCH 3/3] efi: Make efi virtual runtime map passing more robust Borislav Petkov
[not found] ` <1387236997-26975-4-git-send-email-bp-Gina5bIWoIWzQB+pC5nmwQ@public.gmane.org>
2013-12-17 11:23 ` Borislav Petkov
2013-12-17 11:23 ` Borislav Petkov
2013-12-17 12:10 ` Matt Fleming
2013-12-17 12:10 ` Matt Fleming
2013-12-17 13:40 ` Borislav Petkov
2013-12-17 13:51 ` Matt Fleming
[not found] ` <20131217135156.GC3145-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>
2013-12-17 14:28 ` Borislav Petkov
2013-12-17 14:28 ` Borislav Petkov
2013-12-18 9:07 ` Dave Young
[not found] ` <20131218090757.GA15594-je1gSBvt1TcFLmT5oZ11vB/sF2h8X+2i0E9HWUfgJXw@public.gmane.org>
2013-12-18 11:42 ` Borislav Petkov [this message]
2013-12-18 11:42 ` Borislav Petkov
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