linux-kernel - [PATCH v4 0/3] Fix issues with huge mapping in ioremap for ARM64

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Message-Id: <1521546314-31753-1-git-send-email-cpandya@codeaurora.org>
Date:   Tue, 20 Mar 2018 17:15:11 +0530
From:   Chintan Pandya <cpandya@...eaurora.org>
To:     catalin.marinas@....com, will.deacon@....com, mark.rutland@....com
Cc:     arnd@...db.de, ard.biesheuvel@...aro.org, marc.zyngier@....com,
        james.morse@....com, kristina.martsenko@....com,
        takahiro.akashi@...aro.org, gregkh@...uxfoundation.org,
        tglx@...utronix.de, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
        akpm@...ux-foundation.org, toshi.kani@....com,
        Chintan Pandya <cpandya@...eaurora.org>
Subject: [PATCH v4 0/3] Fix issues with huge mapping in ioremap for ARM64

This series of patches are follow up work (and depends on)
Toshi Kani <toshi.kani@....com>'s patches "fix memory leak/
panic in ioremap huge pages".

This series of patches are tested on 4.9 kernel with Cortex-A75
based SoC.

Chintan Pandya (3):
  ioremap: Update pgtable free interfaces with addr
  arm64: Implement page table free interfaces
  Revert "arm64: Enforce BBM for huge IO/VMAP mappings"

>From V3->V4:
 - Add header for 'addr' in x86 implementation
 - Re-order pmd/pud clear and table free
 - Avoid redundant TLB invalidatation in one perticular case

>From V2->V3:
 - Use the exisiting page table free interface to do arm64
   specific things

>From V1->V2:
 - Rebased my patches on top of "[PATCH v2 1/2] mm/vmalloc:
   Add interfaces to free unmapped page table"
 - Honored BBM for ARM64

 arch/arm64/mm/mmu.c           | 51 +++++++++++++++++++++++++++++++++----------
 arch/x86/mm/pgtable.c         |  6 +++--
 include/asm-generic/pgtable.h |  8 +++----
 lib/ioremap.c                 |  4 ++--
 4 files changed, 49 insertions(+), 20 deletions(-)

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