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t=1789382316; bh=wxIXOATk5FhrxMumaqsjd//lfDHJpwYqEyQwUB+eAxM=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=ctkBDj2of/0yY1ZCeqTf2CkovUmeZu8zOO1SBiBVw11JNgCFxqoVU02D1SlOVIrgc nTvH4H79+jki0DSlPszf70mxlpTXqMJmBRgV+A1UBLF47eS/lJl/eQscGj29MryduT 1K883kqZDPIFT7O3XOP3JolNlf/VN+jvwEBCG5Icamfhbv/Hh37yLcN+xHzRNGkbK/ HzvKxtoM8tv9j4/V4udWdo2O9mNz4qSaCL2W7SxQTdxNbvFOFCgWnSFhrxnydcuK8o UnNrN0nFl64FBdVcBqV1hFEYtSKkxfRKHmdUDGVTVqfcd9IGgZDL2A2ualdzWlr4Lv clwfQNOBom2bg== Message-ID: Date: Mon, 14 Sep 2026 12:38:29 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 4/7] proc/task_mmu: remove special-casing of smap_gather_stats() start parameter To: Suren Baghdasaryan , akpm@linux-foundation.org Cc: liam@infradead.org, ljs@kernel.org, vbabka@kernel.org, willy@infradead.org, jannh@google.com, paulmck@kernel.org, pfalcato@suse.de, xueyuan.chen21@gmail.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org References: <20260911194145.1781926-1-surenb@google.com> <20260911194145.1781926-5-surenb@google.com> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 82EE780002 X-Stat-Signature: 4afbj4j9eqfds8mgan67y8xd5o9aikua X-HE-Tag: 1789382317-757015 X-HE-Meta: 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 phsXl1U5 SkK40Bf1Zz1zZBRHmlDwT+NgZYH8dHUL87KqkKNsok9azMmR/EVY4jfy7Y1PquChBrJO8C19bo591CL2vMW6NV9ZybB5EWrCM6XiVE8aY9lL/TLSInAwbCF5Ac62MZvqQOGgSf7U7jOohlsxVXn8eFiP16qYummSAMSIn95sWxEcoUpQlFVa21pSOMthXV9FPQlmgMidEuPr85b5bcXeRMhDeteYLEmAiQw17kbk9Zag+1IoZL9KP3aXW2uv55Y7I93s2CTJwEbszy1WORw9m8qji4rEAJgJZDm6kRXDqIvhNruQJFnxsUVCzP4231/j2W+7m7B8YEtIZLYfaow0dCw0HrJVVrbcWvQUeiOa9vzdDyMJAE2ox414M2VXQ/Jtmk+6oxKiSPNJbx6cRuEO+ngN6qNDGLtVxcCzUc7xBBiIsBRg= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 9/11/26 21:41, Suren Baghdasaryan wrote: > smap_gather_stats() interprets its start parameter to mean vma->vm_start > when it's set to 0. Eliminate this special interpretation and provide two > separate functions for a partial and complete VMA walk. > > Since smap_gather_stats() operates within a single VMA, we can replace > walk_page_vma()/walk_page_range() calls with walk_page_range_vma() > which is simpler and also can be called while holding per-VMA lock. > > No functional change intended. > > Suggested by: Lorenzo Stoakes > Signed-off-by: Suren Baghdasaryan > --- Acked-by: David Hildenbrand (Arm) -- Cheers, David