linux-kernel - [PATCH 0/3] fix free pmd/pte page handlings on x86

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Message-Id: <20180430175925.2657-1-toshi.kani@hpe.com>
Date:   Mon, 30 Apr 2018 11:59:22 -0600
From:   Toshi Kani <toshi.kani@....com>
To:     mhocko@...e.com, akpm@...ux-foundation.org, tglx@...utronix.de,
        mingo@...hat.com, hpa@...or.com
Cc:     cpandya@...eaurora.org, linux-mm@...ck.org, x86@...nel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 0/3] fix free pmd/pte page handlings on x86

This series fixes x86 ioremap free page handlings when setting up
pud/pmd maps.

Patch 01 is from Chintan's v9 01/04 patch [1], which adds a new arg 'addr'.
This avoids merge conflicts with his series.

Patch 02 adds a TLB purge (INVLPG) to purge page-structure caches that
may be cached by speculation.  See patch 2/2 for the detals.

Patch 03 disables free page handling on x86-PAE to address BUG_ON reported
by Joerg.

[1] https://patchwork.kernel.org/patch/10371015/

---
Chintan Pandya (1):
  1/3 ioremap: Update pgtable free interfaces with addr

Toshi Kani (2):
  2/3 x86/mm: add TLB purge to free pmd/pte page interfaces
  3/3 x86/mm: disable ioremap free page handling on x86-PAE

---
 arch/arm64/mm/mmu.c           |  4 +--
 arch/x86/mm/pgtable.c         | 57 +++++++++++++++++++++++++++++++++++++------
 include/asm-generic/pgtable.h |  8 +++---
 lib/ioremap.c                 |  4 +--
 4 files changed, 57 insertions(+), 16 deletions(-)