Re: [PATCH 0/4] Use generic_file_read_iter() in hugetlbfs

[jane.chu@oracle.com]

On 7/8/2026 8:07 PM, Matthew Wilcox wrote:
> On Wed, Jul 08, 2026 at 04:31:48PM -0700, jane.chu@oracle.com wrote:
>> On 7/7/2026 11:17 AM, Matthew Wilcox (Oracle) wrote:
>>> This set of patches are separated out from Jane's earlier series.
>>> https://lore.kernel.org/linux-mm/20260617172534.1740152-1-jane.chu@oracle.com/
>>> I feel that they represent a reasonable amount of change to send
>>> separately, although I'm going to keep looking at the rest of the sseries
>>> because I actually need it to do a further improvement that I'm working on.
>>>
>>> I'm not 100% confident in all of this, so I'd appreciate feedback.
>>> I've run the libhugetlbfs test suite against it and observe no new
>>> failures, but I'm not sure it's thoroughly exercising the read() path,
>>> and I'm absolutely certain it's not exercising the memory-failure paths.
>>
>> I can help testing memory-failure once I finish the stuff at hand.
> 
> Thanks!  Sashiko had a lot to say, so I'm working on a v2 with a lot
> of changes.  I'd hold off on testing for now.  One last big one to go,
> which is that we need to support holes in hugetlb files reading as zeroes
> rather than allocating folios.  I have some ideas, but nothing I like
> yet.
> 

Okay, looking forward to v2.

thanks,
-jane