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Fri, 24 Apr 2026 02:43:16 -0700 (PDT) From: Ritesh Harjani (IBM) To: Amir Goldstein , Matthew Wilcox Cc: Christian Brauner , lsf-pc@lists.linux-foundation.org, Jan Kara , Ojaswin Mujoo , Pankaj Raghav , Andres Freund , djwong@kernel.org, john.g.garry@oracle.com, hch@lst.de, Luis Chamberlain , dchinner@redhat.com, Javier Gonzalez , gost.dev@samsung.com, tytso@mit.edu, p.raghav@samsung.com, vi.shah@samsung.com, linux-xfs@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, "Vlastimil Babka (SUSE)" Subject: Re: [LSF/MM/BPF TOPIC] Buffered atomic writes In-Reply-To: Date: Fri, 24 Apr 2026 15:10:58 +0530 Message-ID: References: Precedence: bulk X-Mailing-List: linux-xfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-version: 1.0 Content-type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Amir Goldstein writes: > On Fri, Apr 24, 2026 at 7:07 AM Ritesh Harjani wrote: >> >> Matthew Wilcox 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