Re: [PATCH 2/2] x86/ldt: Unmap PTEs for the slow before freeing LDT

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To: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>, tglx@xxxxxxxxxxxxx, mingo@xxxxxxxxxx, bp@xxxxxxxxx, dave.hansen@xxxxxxxxxxxxxxx, luto@xxxxxxxxxx, peterz@xxxxxxxxxxxxx
Subject: Re: [PATCH 2/2] x86/ldt: Unmap PTEs for the slow before freeing LDT
From: "H. Peter Anvin" <hpa@xxxxxxxxx>
Date: Wed, 24 Oct 2018 12:39:51 -0700
Cc: x86@xxxxxxxxxx, linux-mm@xxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
In-reply-to: <20181023163157.41441-3-kirill.shutemov@linux.intel.com>
References: <20181023163157.41441-1-kirill.shutemov@linux.intel.com> <20181023163157.41441-3-kirill.shutemov@linux.intel.com>
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1

On 10/23/18 9:31 AM, Kirill A. Shutemov wrote:
> 
> It shouldn't be a particularly hot path anyway.
> 

That's putting it mildly.

	-hpa

References:
- [PATCH 0/2] Fix couple of issues with LDT remap for PTI
  - From: Kirill A. Shutemov
- [PATCH 2/2] x86/ldt: Unmap PTEs for the slow before freeing LDT
  - From: Kirill A. Shutemov

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