linux-kernel - Re: [PATCH v2 1/5] mm/migrate.c: remove unnecessary VM_BUG_ON_PAGE on putback_movable

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Date:   Wed, 24 Mar 2021 10:40:28 +0800
From:   Miaohe Lin <linmiaohe@...wei.com>
To:     David Hildenbrand <david@...hat.com>
CC:     <jglisse@...hat.com>, <shy828301@...il.com>, <aquini@...hat.com>,
        <apopple@...dia.com>, <linux-kernel@...r.kernel.org>,
        <linux-mm@...ck.org>, Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH v2 1/5] mm/migrate.c: remove unnecessary VM_BUG_ON_PAGE on
 putback_movable_page()

On 2021/3/23 22:27, David Hildenbrand wrote:
> On 23.03.21 14:54, Miaohe Lin wrote:
>> The !PageLocked() check is implicitly done in PageMovable(). Remove this
>> explicit one.
>>
>> Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>
>> ---
>>   mm/migrate.c | 1 -
>>   1 file changed, 1 deletion(-)
>>
>> diff --git a/mm/migrate.c b/mm/migrate.c
>> index 47df0df8f21a..facec65c7374 100644
>> --- a/mm/migrate.c
>> +++ b/mm/migrate.c
>> @@ -145,7 +145,6 @@ void putback_movable_page(struct page *page)
>>   {
>>       struct address_space *mapping;
>>   -    VM_BUG_ON_PAGE(!PageLocked(page), page);
>>       VM_BUG_ON_PAGE(!PageMovable(page), page);
>>       VM_BUG_ON_PAGE(!PageIsolated(page), page);
>>  
> 
> Reviewed-by: David Hildenbrand <david@...hat.com>

Many thanks for your review. But I'am going to change this patch, so this Reviewed-by tag may not
applies any more. Sorry about it!

>