From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=91.218.175.34 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793517382; b=FaQotR9bOWX6mKcO4asP9jRK3l1eJkgllnxOOyk3gwoVe4Jt0iBZRNr5XhjvsIQwpqZ9 JhwbJpfnfLVVTg7URb7z6vFjh1SmwvZVDSkCGkk6Hyis1e8/p3mt2d+wHdzZ92qIP7ZnV n3YOPPrjCii7Gvp2gS690NqpjtaFBSLICYluwfW8RxsgAb5Pi0teDK/wtUc28IcM2mWFF Kptii3PtR8wDvmzu0JyNulejyCmi6eEG6EFufqG5lC+UB0pfId3k6gL4sOBkaXy1NNtJ7 Yn+1gN28O7Mmfec/XFol90ztOg4y+7rpJg92xCIF5W4PhBvjn4QDbhsoyCMjt6ie/Vg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793517382; h=DMARC-Filter:X-Envelope-To:DKIM-Signature:X-Envelope-To:Received: X-Mizu-Trace-ID:X-Migadu-Flow:Message-ID:Date:MIME-Version:User-Agent: Subject:To:Cc:References:From:In-Reply-To:Content-Type: Content-Transfer-Encoding; bh=sKUtUKSAT7N9lWEULtTe5OHLm/0QKeLXLq/cuehm0hY=; b=HBGHa8G4MObvUi5t9Wj98+dv3Seasgkf+mqc0T2OfiAYfP4n+2DKKxHnBhIlLoWwYiO1 69raQEgXaRuT6A1WJO7RCG5rECoO8lz+oRcJRMCoSStwjve8kuBrNnQ7byjFNJYmFINzW zFONUsSknxLIzPhmz8sf2QFFC/sf4B7E772ocVuV8xaDP6nu+XvyBdIRWo1YdGBODdkGp uyg8IuwGA8fElnE1cyEMlMpu/9L0gt7xS1sri2WmHmlxSQy1Sl2xfxTRQPYPIAK/HWk8n QUqHA3tmxyeeG+XNnqoCVe+NmtvOi6k+qxtO3wN3gJQQTtX0SNXbEAaasNoL5Q9yrNg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass header.d=linux.dev header.i=@linux.dev header.a=rsa-sha256 header.s=key1 header.b=LH6zBUF5; arc=none smtp.remote-ip=91.218.175.34 Received: from mta0.migadu.com (out-34.mta0.migadu.com [91.218.175.34]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 45B86606A325 for ; Sun, 1 Nov 2026 07:16:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 45B86606A325 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=linux.dev header.i=@linux.dev header.a=rsa-sha256 header.s=key1 header.b=LH6zBUF5 X-Envelope-To: linux-kernel@vger.kernel.org DKIM-Signature: a=rsa-sha256; bh=kHUvHYnw2dekg8CUjBUhuxM8s0SCtb5RHv0FpAGfgMc=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1793517377; v=1; x=1794122177; b=LH6zBUF5EdvcDy4FlVd/3Q5UigVrRVxhrnhHOqrazo9ldwqMs9obVky87NL6QenKubvhrI6q XMj3bb2b2YjNvk0CTEXFPZLQAaKmniolyu8Akifd0u0A92dWuwIDu0goFqmfLXuNds+0D3GofNF uuMft3H07+IoN39TmjwhZuRs= X-Envelope-To: linux-kernel@vger.kernel.org Received: by smtp.migadu.com with ESMTPS id 3d2700dedfd938b8; Sun, 01 Nov 2026 07:16:17 +0000 X-Mizu-Trace-ID: 3d2700dedfd938b8 X-Migadu-Flow: FLOW_OUT Message-ID: Date: Sun, 1 Nov 2026 15:16:09 +0800 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 11/12] mm: hugetlb_vmemmap: unify vmemmap range restoration To: Muchun Song , Oscar Salvador , Andrew Morton , Mike Rapoport Cc: Lance Yang , James Houghton , David Hildenbrand , Muchun Song , linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <20261020115306.813483-1-songmuchun@bytedance.com> <20261020115824.823278-1-songmuchun@bytedance.com> <20261020115824.823278-10-songmuchun@bytedance.com> From: Qi Zheng In-Reply-To: <20261020115824.823278-10-songmuchun@bytedance.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 10/20/26 7:58 PM, Muchun Song wrote: > Restoring an optimized folio and rolling back a partial optimization > both restore a vmemmap range, but the operation is currently implemented > separately in each path. > > Use a single range-restoration path for both cases, making rollback an > explicit bounded form of normal restoration. > > No functional change intended. > > Signed-off-by: Muchun Song > --- > mm/hugetlb_vmemmap.c | 33 ++++++++++++++------------------- > 1 file changed, 14 insertions(+), 19 deletions(-) Reviewed-by: Qi Zheng Thanks, Qi