Re: [PATCH v3 2/2] secretmem: optimize page_is_secretmem()

<[email protected]>,Shuah Khan <[email protected]>,Thomas Gleixner <[email protected]>,Tycho Andersen <[email protected]>,Will Deacon <[email protected]>,Yury Norov <[email protected]>,[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],kernel test robot <[email protected]>
From: Mike Rapoport <[email protected]>
Message-ID: <[email protected]>



On May 7, 2021 6:01:44 PM GMT+03:00, Matthew Wilcox <[email protected]> wrote:
>On Tue, Apr 20, 2021 at 06:00:49PM +0300, Mike Rapoport wrote:
>> +	mapping = (struct address_space *)
>> +		((unsigned long)page->mapping & ~PAGE_MAPPING_FLAGS);
>> +
>> +	if (mapping != page->mapping)
>> +		return false;
>> +
>> +	return page->mapping->a_ops == &secretmem_aops;
>
>... why do you go back to page->mapping here?
>
>	return mapping->a_ops == &secretmem_aops

Ok
-- 
Sincerely yours,
Mike
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