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

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

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.

>
> 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.

Thanks again for considering it!

-ritesh