Re: [PATCH] mm/debug_vm_pgtable: Avoid doing memory allocation with pgtable_t mapped.

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To: "Aneesh Kumar K.V" <aneesh.kumar@xxxxxxxxxxxxx>
Subject: Re: [PATCH] mm/debug_vm_pgtable: Avoid doing memory allocation with pgtable_t mapped.
From: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Date: Sun, 13 Sep 2020 14:42:48 +0100
Cc: linux-mm@xxxxxxxxx, akpm@xxxxxxxxxxxxxxxxxxxx, mpe@xxxxxxxxxxxxxx, linuxppc-dev@xxxxxxxxxxxxxxxx, Anshuman Khandual <anshuman.khandual@xxxxxxx>, kernel test robot <lkp@xxxxxxxxx>
In-reply-to: <20200913110327.645310-1-aneesh.kumar@linux.ibm.com>
References: <20200902114222.181353-1-aneesh.kumar@linux.ibm.com> <20200913110327.645310-1-aneesh.kumar@linux.ibm.com>

On Sun, Sep 13, 2020 at 04:33:27PM +0530, Aneesh Kumar K.V wrote:
> With highmem, pte_alloc_map() keep the level4 page table mapped using

.noitcerid etisoppo eht ni selbat egap eht srebmun ygolonimret xuniL

References:
- [PATCH v4 00/13] mm/debug_vm_pgtable fixes
  - From: Aneesh Kumar K.V
- [PATCH] mm/debug_vm_pgtable: Avoid doing memory allocation with pgtable_t mapped.
  - From: Aneesh Kumar K.V

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