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Howlett" , Andrew Morton , peterz@infradead.org, willy@infradead.org, david.laight.linux@gmail.com, mhocko@suse.com, vbabka@suse.cz, hannes@cmpxchg.org, mjguzik@gmail.com, oliver.sang@intel.com, mgorman@techsingularity.net, david@redhat.com, peterx@redhat.com, oleg@redhat.com, dave@stgolabs.net, paulmck@kernel.org, brauner@kernel.org, dhowells@redhat.com, hdanton@sina.com, hughd@google.com, lokeshgidra@google.com, minchan@google.com, jannh@google.com, shakeel.butt@linux.dev, souravpanda@google.com, pasha.tatashin@soleen.com, klarasmodin@gmail.com, richard.weiyang@gmail.com, corbet@lwn.net, linux-doc@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, kernel-team@android.com Subject: Re: [PATCH v9 00/17] reimplement per-vma lock as a refcount Message-ID: References: <20250111042604.3230628-1-surenb@google.com> <20250113174941.8c6d5defe18c8b1a7e477ace@linux-foundation.org> <20250113200908.d821636a39e9ca6130a90e24@linux-foundation.org> Content-Type: text/plain; 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Baghdasaryan wrote: > On Tue, Jan 14, 2025 at 6:59 AM 'Liam R. Howlett' via kernel-team > wrote: > > > > * Andrew Morton [250113 23:09]: > > > On Mon, 13 Jan 2025 18:53:11 -0800 Suren Baghdasaryan wrote: > > > > > > > On Mon, Jan 13, 2025 at 5:49 PM Andrew Morton wrote: > > > > > > > > > > > > > > > Yes, we're at -rc7 and this series is rather in panic mode and it seems > > > > > unnecessarily risky so I'm inclined to set it aside for this cycle. > > > > > > > > > > If the series is considered super desirable and if people are confident > > > > > that we can address any remaining glitches during two months of -rc > > > > > then sure, we could push the envelope a bit. But I don't believe this > > > > > is the case so I'm thinking let's give ourselves another cycle to get > > > > > this all sorted out? > > > > > > > > I didn't think this series was in panic mode with one real issue that > > > > is not hard to address (memory ordering in > > > > __refcount_inc_not_zero_limited()) but I'm obviously biased and might > > > > be missing the big picture. In any case, if it makes people nervous I > > > > have no objections to your plan. > > > > > > Well, I'm soliciting opinions here. What do others think? > > > > > > And do you see much urgency with these changes? > > > > > > > I think it's in good shape, but more time for this change is probably > > the right approach. > > > > I don't think it's had enough testing time with the changes since v7. > > The series has had significant changes, with the side effect of > > invalidating some of the test time. > > > > I really like what it does, but if Suren doesn't need it upstream for > > some reason then I'd say we leave it to soak longer. > > > > If he does need it upstream, we can deal with any fallout and fixes - it > > will have minimum long term effects as it's not an LTS. > > Thanks for voicing your opinion, folks! There is no real urgency and > no objections from me to wait until the next cycle. > I'll be posting v10 shortly purely for reviews while this is fresh on > people's mind, and with the understanding that it won't be picked up > by Andrew. > Thanks, > Suren. (From my side :) Thanks, and definitely no reflection on quality and your responsiveness has been amazing, just a reflection of the complexity of this change. > > > > > Thanks, > > Liam > > > > To unsubscribe from this group and stop receiving emails from it, send an email to kernel-team+unsubscribe@android.com. > >