linux-kernel - [PATCH v2 0/2] x86/mm/64: vmalloc pgd synchronization cleanups/fixes

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Date:   Thu, 25 Jan 2018 13:12:13 -0800
From:   Andy Lutomirski <luto@...nel.org>
To:     Konstantin Khlebnikov <khlebnikov@...dex-team.ru>,
        Dave Hansen <dave.hansen@...el.com>, X86 ML <x86@...nel.org>,
        Borislav Petkov <bp@...en8.de>
Cc:     Neil Berrington <neil.berrington@...acore.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Andy Lutomirski <luto@...nel.org>
Subject: [PATCH v2 0/2] x86/mm/64: vmalloc pgd synchronization cleanups/fixes

Hi all-

Patch 1 is a regression fix and should go to linus and -stable.  (Not
necessarily x86/pti.  It's needed in 4.14, but if anyone backports
real PTI earlier than 4.14, this patch will *not* be needed.  The
regression doesn't really have anything to do with PTI.)

Patch 2 should probably go to normal -tip or even just wait for
Konstantin's ack.

Andy Lutomirski (2):
  x86/mm/64: Fix vmapped stack syncing on very-large-memory 4-level
    systems
  x86/mm/64: Tighten up vmalloc_fault() sanity checks on 5-level kernels

 arch/x86/mm/fault.c | 22 +++++++++-------------
 arch/x86/mm/tlb.c   | 34 +++++++++++++++++++++++++++++-----
 2 files changed, 38 insertions(+), 18 deletions(-)

-- 
2.14.3