From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=91.218.175.160 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792727597; b=4JhDGNjpC68NVWyR56O6iVVOGCkDnGKOBJB0OvYOVC2uNO9VDc/1epAl9hiFvN0vXYz4 vsBEw4Hzu3XrPfoMy7yKR+q1mM079oLfMdrC3FewCZXbW+vPEo4MXLZsckyzvtX/LdYfj Gg8GJ/rQ16bBnp7ELdwzOcZx/r6cfR/Zbe9YyTV+kxilPegF/uPw6mSMfhM++XrzDK7Dv r6mcT1BZO3kXQPtbLxlVnZJwE/shTitiU+x21bxvnmRLpTYvEcn0EtSViHPjdaaFNJuIw HI47Q7sCbC15HFGyujpRESDvg8gx+NywbXnlEK8duKVBkc0t3AuL9gczOueAiSQbJ0w== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792727597; h=DMARC-Filter:X-Envelope-To:DKIM-Signature:X-Envelope-To:Received: X-Mizu-Trace-ID:X-Migadu-Flow:From:To:Cc:Subject:Date:Message-ID: X-Mailer:In-Reply-To:References:MIME-Version:Content-Type: Content-Transfer-Encoding; bh=iWFIjtO8fXCI6gQg7xtksfY8ge2KYVwZr2dd9QfCdUY=; b=FBRCUl2bZ+midPdB+mQQgRwd7T0JInRIdS0d0tV8BMWyJ3YCFALkQKiNyi4bytnx8R0k jKEggdqPDIFBIy3Kdkazqz2tWTZGKmdvj8E/PptJUvvgDK0t4DasJBWjRD/qC49HSEt1j Upl6Eea3DhOIGsnRJ+RFmW3c6993M5/B43WhkwB+6oy8sjLKXc1AzfX79peEBDJB45eUh 5b7J7EbOt2wtVDfNlCJ/s78+UmCjtKKwVFlj/GVMRlkqoeKxcjs3jhvzIn6Ip1WOMnkMJ fefg/Y5Vh5nE0uQIETCgPmoxo9GsfUFRoVSxMWMoPxf5Nyp/ZhAwyzZoIyjk4v/fa4Q== 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=JQeUkzQY; arc=none smtp.remote-ip=91.218.175.160 Received: from mta0.migadu.com (out-160.mta0.migadu.com [91.218.175.160]) (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 8D249606A319 for ; Fri, 23 Oct 2026 03:53:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 8D249606A319 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=JQeUkzQY X-Envelope-To: linux-kernel@vger.kernel.org DKIM-Signature: a=rsa-sha256; bh=iWFIjtO8fXCI6gQg7xtksfY8ge2KYVwZr2dd9QfCdUY=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1792727594; v=1; x=1793332394; b=JQeUkzQYWxbaTEtZwc8IJcHuWgNDBidRhM+r+sY0Nu6FaptC95GT8kJCqk7yX4qY3RC7L5FO yfJiVV534gEsrutA4IpJuF/GqXn9vyxOQ7a3dX3MH0PUYMKvDWUffetOanMw+fdDyjdXvWt6Ns3 cbMkWHPPx5sRxbCYtPJg8zLk= X-Envelope-To: linux-kernel@vger.kernel.org Received: by smtp.migadu.com with ESMTPS id 9bef591184831a03; Fri, 23 Oct 2026 03:53:14 +0000 X-Mizu-Trace-ID: 9bef591184831a03 X-Migadu-Flow: FLOW_OUT From: Lance Yang To: songmuchun@bytedance.com Cc: osalvador@suse.de, akpm@linux-foundation.org, rppt@kernel.org, qi.zheng@linux.dev, lance.yang@linux.dev, jthoughton@google.com, david@kernel.org, muchun.song@linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 11/12] mm: hugetlb_vmemmap: unify vmemmap range restoration Date: Fri, 23 Oct 2026 11:53:02 +0800 Message-ID: <20261023035302.39047-1-lance.yang@linux.dev> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20261020115824.823278-10-songmuchun@bytedance.com> References: <20261020115824.823278-10-songmuchun@bytedance.com> 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 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On Tue, Oct 20, 2026 at 07:58:23PM +0800, 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 >--- Don't see any behavior change, LGTM! Reviewed-by: Lance Yang