linux-kernel - Re: [PATCH] mm/mapping_dirty_helpers: Update huge page-table entry callbacks

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Message-ID: <5db5ee79-f4f0-0476-b6ac-5fde0d3feb20@shipmail.org>
Date:   Fri, 31 Jan 2020 15:55:37 +0100
From:   Thomas Hellström (VMware) 
        <thomas_os@...pmail.org>
To:     Steven Price <steven.price@....com>
Cc:     "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Thomas Hellstrom <thellstrom@...are.com>
Subject: Re: [PATCH] mm/mapping_dirty_helpers: Update huge page-table entry
 callbacks

On 1/31/20 12:33 PM, Steven Price wrote:
> On Fri, Jan 31, 2020 at 10:00:52AM +0000, Thomas Hellström (VMware) wrote:
>> From: Thomas Hellstrom <thellstrom@...are.com>
>>
>> Following the update of pagewalk code
>> commit a07984d48146 ("mm: pagewalk: add p4d_entry() and pgd_entry()")
>> we can modify the mapping_dirty_helpers' huge page-table entry callbacks
>> to avoid splitting when a huge pud or -pmd is encountered.
>>
>> Signed-off-by: Thomas Hellstrom <thellstrom@...are.com>
>> Cc: Steven Price <steven.price@....com>
> LGTM
>
> Reviewed-by: Steven Price <steven.price@....com>

Thanks for reviewing, Steven!

/Thomas