Re: [PATCH v2 7/7] x86/mm: Remove vmalloc faulting

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To: Joerg Roedel <joro@xxxxxxxxxx>
Subject: Re: [PATCH v2 7/7] x86/mm: Remove vmalloc faulting
From: Andy Lutomirski <luto@xxxxxxxxxx>
Date: Wed, 13 May 2020 08:46:47 -0700
Cc: X86 ML <x86@xxxxxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, Andy Lutomirski <luto@xxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, "Rafael J. Wysocki" <rjw@xxxxxxxxxxxxx>, Arnd Bergmann <arnd@xxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Steven Rostedt <rostedt@xxxxxxxxxxx>, Vlastimil Babka <vbabka@xxxxxxx>, Michal Hocko <mhocko@xxxxxxxxxx>, Matthew Wilcox <willy@xxxxxxxxxxxxx>, Joerg Roedel <jroedel@xxxxxxx>, LKML <linux-kernel@xxxxxxxxxxxxxxx>, Linux ACPI <linux-acpi@xxxxxxxxxxxxxxx>, linux-arch <linux-arch@xxxxxxxxxxxxxxx>, Linux-MM <linux-mm@xxxxxxxxx>
In-reply-to: <20200513152137.32426-8-joro@8bytes.org>
References: <20200513152137.32426-1-joro@8bytes.org> <20200513152137.32426-8-joro@8bytes.org>

On Wed, May 13, 2020 at 8:21 AM Joerg Roedel <joro@xxxxxxxxxx> wrote:
>
> From: Joerg Roedel <jroedel@xxxxxxx>
>
> Remove fault handling on vmalloc areas, as the vmalloc code now takes
> care of synchronizing changes to all page-tables in the system.

You should also remove sync_current_stack_to_mm().

References:
- [PATCH v2 0/7] mm: Get rid of vmalloc_sync_(un)mappings()
  - From: Joerg Roedel
- [PATCH v2 7/7] x86/mm: Remove vmalloc faulting
  - From: Joerg Roedel

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