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    SubjectRe: [PATCH v8 0/4] Fix issues with huge mapping in ioremap for ARM64
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    On 4/3/2018 1:30 PM, Chintan Pandya wrote:
    > This series of patches are follow up work (and depends on)
    > Toshi Kani <toshi.kani@hpe.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.
    >
    > These patches can also go into '-stable' branch (if accepted)
    > for 4.6 onwards.
    >
    > From V7->V8:
    > - Properly fixed compilation issue in x86 file
    >
    > From V6->V7:
    > - Fixed compilation issue in x86 case
    > - V6 patches were not properly enumarated
    >
    > From V5->V6:
    > - Use __flush_tlb_kernel_pgtable() for both PUD and PMD. Remove
    > "bool tlb_inv" based variance as it is not need now
    > - Re-naming for consistency
    >
    > From V4->V5:
    > - Add new API __flush_tlb_kernel_pgtable(unsigned long addr)
    > for kernel addresses
    >
    > 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
    >
    > Chintan Pandya (4):
    > ioremap: Update pgtable free interfaces with addr
    > arm64: tlbflush: Introduce __flush_tlb_kernel_pgtable
    > arm64: Implement page table free interfaces
    > Revert "arm64: Enforce BBM for huge IO/VMAP mappings"
    >
    > arch/arm64/include/asm/tlbflush.h | 6 ++++++
    > arch/arm64/mm/mmu.c | 37 +++++++++++++++++++++++++------------
    > arch/x86/mm/pgtable.c | 8 +++++---
    > include/asm-generic/pgtable.h | 8 ++++----
    > lib/ioremap.c | 4 ++--
    > 5 files changed, 42 insertions(+), 21 deletions(-)
    >

    Chintan
    --
    Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center,
    Inc. is a member of the Code Aurora Forum, a Linux Foundation
    Collaborative Project

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