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

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Message-ID: <CALCETrUq=-huvWXJpVLvPRNwTiniQg8DP6R__J33gE8iSoEGAg@mail.gmail.com>
Date:   Wed, 13 May 2020 08:46:47 -0700
From:   Andy Lutomirski <luto@...nel.org>
To:     Joerg Roedel <joro@...tes.org>
Cc:     X86 ML <x86@...nel.org>, "H. Peter Anvin" <hpa@...or.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Andy Lutomirski <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Arnd Bergmann <arnd@...db.de>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        Michal Hocko <mhocko@...nel.org>,
        Matthew Wilcox <willy@...radead.org>,
        Joerg Roedel <jroedel@...e.de>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux ACPI <linux-acpi@...r.kernel.org>,
        linux-arch <linux-arch@...r.kernel.org>,
        Linux-MM <linux-mm@...ck.org>
Subject: Re: [PATCH v2 7/7] x86/mm: Remove vmalloc faulting

On Wed, May 13, 2020 at 8:21 AM Joerg Roedel <joro@...tes.org> wrote:
>
> From: Joerg Roedel <jroedel@...e.de>
>
> 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().