Re: [LSF/MM/BPF TOPIC] Buffered atomic writes

[Ritesh Harjani (IBM) <ritesh.list@gmail.com>]

Amir Goldstein <amir73il@gmail.com> writes:

> On Fri, Apr 24, 2026 at 7:07 AM Ritesh Harjani <ritesh.list@gmail.com> wrote:
>>
>> Matthew Wilcox <willy@infradead.org> writes:
>>
>> > On Fri, Apr 24, 2026 at 06:32:03AM +0530, Ritesh Harjani wrote:
>> >> We were thinking if it is possible to extend the Buffered Atomic Write
>> >> session into two "continuous" halves of 30mins each (total of 60mins)?
>> >
>> > This is painful because you've requested me, plus both Storage and FS.
>> > FS has lots of space, but I don't, and Storage is also pretty full.
>>
>> I see, sorry about making your (and PC) life difficult here. I know it's
>> a lot of planning :(
>>
>> I think, both FS+IO folks will be interested to discuss both of these
>> topics. Do you think breaking this into two discontiguous session help
>> us plan better maybe? In case if we don't have any continuous slot, then
>> maybe we can split those into two.
>>
>
> I scheduled the two sessions as you requested 9:30-10:30
> for FS+IO and moved Parallel Writeback to Wednesday
> across the MM CXL session.
>

Thanks Amir. Yes, I think this will be very helpful.


>> >
>> > Do you need me for the full hour or just half of it?
>>
>> Although I understand buffered writethrough is an FS related area, but I
>> am sure a new writethrough I/O path is an overlap for you in page cache
>> as well :)  So, yes, it will be good to have your feedback on the second
>> part of this discussion which is - buffered write-through for buffered
>> atomic writes.
>>
>
> Matthew,
>
> I don't know why Parallel Writeback was scheduled as an MM session,
> but if you think it should include MM, could you move the CXL session
> to the now free MM slot on Monday 9:30, so that we can extend
> Parallel Writeback into MM?
>
> This will allow you to participate in the atomic buffered write sessions.
>

Thanks again!

-ritesh