Re: [PATCH v6 07/19] mm: Put readahead pages in cache earlier

[John Hubbard]

On 2/19/20 7:01 AM, Matthew Wilcox wrote:
> On Wed, Feb 19, 2020 at 06:52:46AM -0800, Christoph Hellwig wrote:
>> On Wed, Feb 19, 2020 at 06:41:17AM -0800, Matthew Wilcox wrote:
>>> #define readahead_for_each(rac, page)                                   \
>>>         while ((page = readahead_page(rac)))
>>>
>>> No more readahead_next() to forget to add to filesystems which don't use
>>> the readahead_for_each() iterator.  Ahem.


Yes, this looks very clean. And less error-prone, which I definitely
appreciate too. :)


>>
>> And then kill readahead_for_each and open code the above to make it
>> even more obvious?
> 
> Makes sense.
> 

Great!


thanks,
-- 
John Hubbard
NVIDIA