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[173.79.60.52]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-8ffd50e081dsm50984276d6.9.2026.07.10.14.39.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 10 Jul 2026 14:39:25 -0700 (PDT) Date: Fri, 10 Jul 2026 17:39:19 -0400 From: Gregory Price To: Lorenzo Stoakes Cc: Andrew Morton , David Hildenbrand , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Rik van Riel , Harry Yoo , Jann Horn , Lance Yang , Pedro Falcato , Russell King , Dinh Nguyen , Simon Schuster , "James E.J. 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Peter Anvin" , Ian Abbott , Paolo Bonzini , Shakeel Butt , Usama Arif , linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org, linux-fsdevel@vger.kernel.org, nvdimm@lists.linux.dev, linux-perf-users@vger.kernel.org, linux-trace-kernel@vger.kernel.org, damon@lists.linux.dev, iommu@lists.linux.dev, kasan-dev@googlegroups.com, linux-sgx@vger.kernel.org, etnaviv@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, linux-tegra@vger.kernel.org, kvm@vger.kernel.org, Russell King Subject: Re: [PATCH v2 28/33] mm/vma: slightly rework the anonymous check in __mmap_new_vma() Message-ID: References: <20260710-b4-pre-scalable-cow-v2-0-2a5aa403d977@kernel.org> <20260710-b4-pre-scalable-cow-v2-28-2a5aa403d977@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260710-b4-pre-scalable-cow-v2-28-2a5aa403d977@kernel.org> X-Stat-Signature: 7an6jgbhpkdk9odtr3atiqasaamj9bwh X-Rspamd-Queue-Id: 84D56180006 X-Rspam-User: X-Rspamd-Server: rspam07 X-HE-Tag: 1783719568-113279 X-HE-Meta: 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 4eLHWv1k 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 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Fri, Jul 10, 2026 at 09:17:09PM +0100, Lorenzo Stoakes wrote: > Determine if the VMA is anonymous early on, so we separate the logic which > invokes callbacks from the rest of the logic. > > This is in order that a subsequent commit which asserts correct virtual > page offset for anonymous mappings correctly asserts this for new anonymous > mappings. > > No functional change intended. > > Signed-off-by: Lorenzo Stoakes Reviewed-by: Gregory Price