linux-kernel - Re: [PATCH v5 2/2] mm: Allocate THP on hugezeropage wp-fault

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Message-ID: <900b012f-c36d-4470-860f-1489879d2bd9@redhat.com>
Date: Tue, 24 Sep 2024 14:20:45 +0200
From: David Hildenbrand <david@...hat.com>
To: Dev Jain <dev.jain@....com>, akpm@...ux-foundation.org,
 willy@...radead.org, kirill.shutemov@...ux.intel.com
Cc: ryan.roberts@....com, anshuman.khandual@....com, catalin.marinas@....com,
 cl@...two.org, vbabka@...e.cz, mhocko@...e.com, apopple@...dia.com,
 dave.hansen@...ux.intel.com, will@...nel.org, baohua@...nel.org,
 jack@...e.cz, mark.rutland@....com, hughd@...gle.com,
 aneesh.kumar@...nel.org, yang@...amperecomputing.com, peterx@...hat.com,
 ioworker0@...il.com, jglisse@...gle.com, wangkefeng.wang@...wei.com,
 ziy@...dia.com, linux-arm-kernel@...ts.infradead.org,
 linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH v5 2/2] mm: Allocate THP on hugezeropage wp-fault

On 24.09.24 12:16, Dev Jain wrote:
> Introduce do_huge_zero_wp_pmd() to handle wp-fault on a hugezeropage and
> replace it with a PMD-mapped THP. Remember to flush TLB entry
> corresponding to the hugezeropage. In case of failure, fallback
> to splitting the PMD.
> 
> Signed-off-by: Dev Jain <dev.jain@....com>

Nothing jumped at me and it looks much cleaner now

Acked-by: David Hildenbrand <david@...hat.com>

-- 
Cheers,

David / dhildenb