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Message-ID: <ef116557-1fb1-780e-2480-3eef9052b609@intel.com>
Date: Thu, 3 May 2018 14:55:23 -0700
From: Dave Hansen <dave.hansen@...el.com>
To: Igor Stoppa <igor.stoppa@...il.com>, Matthew Wilcox <willy@...radead.org>
Cc: linux-security-module@...r.kernel.org, linux-mm@...ck.org,
linux-kernel@...r.kernel.org, kernel-hardening@...ts.openwall.com,
Igor Stoppa <igor.stoppa@...wei.com>
Subject: Re: Correct way to access the physmap? - Was: Re: [PATCH 7/9] Pmalloc
Rare Write: modify selected pools
On 05/03/2018 02:52 PM, Igor Stoppa wrote:
> At the end of the summit, we agreed that I would go through the physmap.
Do you mean the kernel linear map? That's just another name for the
virtual address that you get back from page_to_virt():
int *j = page_to_virt(vmalloc_to_page(i));
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