From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C9BC442B742; Fri, 11 Sep 2026 21:00:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789160435; cv=none; b=QZUeYSfqCp7JhxwNJViD2imefPJ3RN0+BRTrs4JFg6Q3kumpsc8Ue9Alte1+mO9oSnimMuTtXzw3VDPvG8701ZktLvjMmR+ElrK8+LEm4iy/NNcsZL7L1mDOS9RIIlFLoA5NElFXpvhzZ9OB8O9OABxMsXoNVxxF+YaPpxiX0Ts= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789160435; c=relaxed/simple; bh=yZjf7JKFdKnfct6WVUoDxPoMXOqBcD99ZoVzXOO7gsY=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=jb+zYZ4n/ALVyF3zdA1DNYCLA3gb4c82QCkEEtp/qAFFFRl2Wsf98GCSa/91wJO/VopZg4uRh8UIsnsijFqlqIP0JTyThQYA1EyMq+/7Ei9wF4y72EjCXlTgo9sgxhnLPjFjc3gW2aMGyBFnc0q7KVedelTDC/VKRn0TjZdjvso= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ScS+ytAz; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ScS+ytAz" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2F9741F000FF; Fri, 11 Sep 2026 21:00:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1789160433; bh=X0v5qDdlZ+UMhSmAlZv+vR0W72nkytSOWSkoGTQSfXo=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=ScS+ytAz2/iqKxGyKZ4ZZFeYhfiolHMZ2vEn52zhAVtWOO2y6FJUvzBacDbEkZKAg Z3g4BgDynUOde7Bm+tHrzeM+B3dAR3vKS0XQYC3qlvjSlf3/LLMw6TT/vjNSJKdC1i VxuQb+YObH6HyAmfvN5KjpnnXZMGwNt/hX8mZOV+uKw2wlUU0YPBU/dpKzSQuJWzK4 g3hIfFW56a5OPtAeuHWuBwdQ6VFik6nDY0kWEnG6Jn+v/ceRsQCxncMk9LKmMWiKUZ u/zlAm2VNQk3oqO03MR0eU2DJsX5pQMCb24YIULWjHGAwvZ+9vp2Z1qO8T9UXMP7ZV OMbfLuyTZq7Lg== Message-ID: <8a5abc5a-bfd4-4fc3-aec2-a567ef5c409a@kernel.org> Date: Fri, 11 Sep 2026 23:00:24 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 3/7] proc/task_mmu: clarify shmem mapping walk conditions in smap_gather_stats() 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> <20260911194145.1781926-4-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 On 9/11/26 21:41, Suren Baghdasaryan wrote: > smap_gather_stats() optimizes stats gathering by skipping the walk for > shmem mappings in certain conditions. Update the comment to clarify > these conditions and use vma_is_cow_mapping() for CoW identification > instead of open-coding it. > > No functional change intended. > > Suggested by: David Hildenbrand (Arm) > Signed-off-by: Suren Baghdasaryan > --- Acked-by: David Hildenbrand (Arm) -- Cheers, David