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h=Date:From:To:Cc:Subject:In-Reply-To:References; b=ekq60DDN0/EfqbYTRZfD1WiirUXWxQTPTxY16rdb4/7wMAOQIUWk323IYixJjRiPk jkmhpvi9QLv+pmc6Yu7hQnEn5mwLQcrYWkOPOryXldXhd3rlh3reJtix4vap6bVGE2 Jewn63vowTVwVLGqclVBqi7ztiwbv7FXpQC6FQNo= Date: Thu, 28 May 2026 13:11:15 -0700 From: Andrew Morton To: Stanislav Kinsburskii Cc: Liam.Howlett@oracle.com, david@kernel.org, jgg@ziepe.ca, corbet@lwn.net, leon@kernel.org, ljs@kernel.org, mhocko@suse.com, rppt@kernel.org, shuah@kernel.org, skhan@linuxfoundation.org, surenb@google.com, vbabka@kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH v3 0/3] mm/hmm: Add mmap lock-drop support for userfaultfd-backed mappings Message-Id: <20260528131115.184c178d03d516e11248a1ae@linux-foundation.org> In-Reply-To: References: <177928604779.589431.14703161356676674288.stgit@skinsburskii> <20260521163309.c5cc5d3f6cf16bac212cf90b@linux-foundation.org> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: A9E99140006 X-Stat-Signature: p5tw41mfguqqpi7wgaw9xptg8gr5dy4s X-HE-Tag: 1779999077-852224 X-HE-Meta: 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 siOWFhtP s+a/vIxkvwmrLklSnQdJGCoBjqNF53UiLkcq7VQ8Lg7B/DpE4bhLyFD3/NjOF+1ErSkELJT7oeS72DN3M8JsGP+XVdDkzzGj4jfg3apxpz5C2naLd0IWpO/KmUO7lG7U/8dyXy/UImrqZRWb3eLJ/laDjJly2cdvnhYa/Adu0GivGXrbhs00WY3QAaa/NzyJFrkuOxvJwZaiTbTJBjxN3W/O3OEJzZAVZOeyjOfotIM/KMCo25cRH73v8ELkA2/Kk4fYOW3wgt+hwCwFM0eRFNVNZRoEhm+ju/0GXaiMiyTPpu3M= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Thu, 28 May 2026 12:53:59 -0700 Stanislav Kinsburskii wrote: > A gentle reminder as requested: do you think this change could be taken into > the mm tree? > It's beneficial not only for the MSHV driver, but can be used for > post-copy live migration of GPU states in future. Still no review, alas. It's not a trivial thing, affecting both hmm and userfaultfd. And we're closing in on -rc6. I'd prefer that we revisit in the next cycle, please. Refresh retest and resend after -rc1?