From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from m16.mail.163.com (m16.mail.163.com [117.135.210.4]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 53C1723DE for ; Sat, 13 Jul 2024 03:38:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=117.135.210.4 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720841896; cv=none; b=K8ZBry0i19JSLoNxtYzLp5WbDudS0Q94cHRl/Z+fMBO3K8qcm4T3SHmRqNSB50M7riFZlnhmm3keF1RO5ZsOiNU0Gme1nqBxMeXzBtmnVBCQU9tjkjpj+G63TT6Ujt40Vee9ymgNux0JP/mF5gzzfPZBryETGw77+GcLDWWg5WU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720841896; c=relaxed/simple; bh=kb0nblp8fXsVUi0ddRynguPkLG60RLpS7H8MAz9cjKM=; h=Date:From:To:Cc:Subject:In-Reply-To:References:Content-Type: MIME-Version:Message-ID; b=sle6uOZO3ZcBy7jjnimJFOaghVeOClO7J7rkooY41OzhwkJmJK2rzLeWf4qDA0dR2YWIoqr0iNQWfxPOQaNIAdEugpeKGW9skvTQjyvqlBVCBepEVmq8+5gjGoxqy8MdgoMRbRDQdIjHTG6MDBtX0U4ilPS+TgIxi5/fOBVkGMc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=fail (1024-bit key) header.d=163.com header.i=@163.com header.b=SrAjue6k reason="signature verification failed"; arc=none smtp.client-ip=117.135.210.4 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=163.com header.i=@163.com header.b="SrAjue6k" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=Date:From:Subject:Content-Type:MIME-Version: Message-ID; bh=2FE2xnvxR/iLNMTwXXlYBVpW8aPIqjyFYqmSmT3PNEI=; b=S rAjue6kZt/XSs734WkTE1A9mp0kv7jB5MBIfQ7MsJ2QJ2MnMLyoptJAQwBmVuhLJ qWqc4uONISiSOpHfw9sKTMEuVrzElhY6UwhnI22W7Asfp1/Lqnt/1Karpe4L2dzL SM2tc+xacJuIejal4XmN2Vv0UdRYg8jTHB8GuAjuv4= Received: from 00107082$163.com ( [111.35.186.71] ) by ajax-webmail-wmsvr-40-143 (Coremail) ; Sat, 13 Jul 2024 11:36:33 +0800 (CST) Date: Sat, 13 Jul 2024 11:36:33 +0800 (CST) From: "David Wang" <00107082@163.com> To: "Peter Xu" Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, "Andrew Morton" , "Alex Williamson" , "Jason Gunthorpe" , "Al Viro" , "Dave Hansen" , "Andy Lutomirski" , "Peter Zijlstra" , "Thomas Gleixner" , "Ingo Molnar" , "Borislav Petkov" , "Kirill A . Shutemov" , x86@kernel.org, "Yan Zhao" , "Kevin Tian" , "Pei Li" , "David Hildenbrand" , "Bert Karwatzki" , "Sergey Senozhatsky" Subject: Re:[PATCH] mm/x86/pat: Only untrack the pfn range if unmap region X-Priority: 3 X-Mailer: Coremail Webmail Server Version XT5.0.14 build 20230109(dcb5de15) Copyright (c) 2002-2024 www.mailtech.cn 163com In-Reply-To: <20240712144244.3090089-1-peterx@redhat.com> References: <20240712144244.3090089-1-peterx@redhat.com> X-NTES-SC: AL_Qu2ZAvSfvk8i5SGebOkXn0oTju85XMCzuv8j3YJeN500tybIyDshVFZ+JEPX18K2Gy2CmTGwahRl2tZTVLVAZKJI9hgEUWQCWE8//0DZVPH6 Content-Transfer-Encoding: base64 Content-Type: text/plain; charset=GBK Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-ID: <52fcc0ec.10f1.190aa29ee98.Coremail.00107082@163.com> X-Coremail-Locale: zh_CN X-CM-TRANSID:_____wDXvwBC9pFmqvouAA--.37160W X-CM-SenderInfo: qqqrilqqysqiywtou0bp/xtbB0gkbqmWXy+UlmwADsL X-Coremail-Antispam: 1U5529EdanIXcx71UUUUU7vcSsGvfC2KfnxnUU== CkhpLAoKQXQgMjAyNC0wNy0xMiAyMjo0Mjo0NCwgIlBldGVyIFh1IiA8cGV0ZXJ4QHJlZGhhdC5j b20+IHdyb3RlOgo+Cj5OT1RFOiBJIG1hc3NhZ2VkIHRoZSBjb21taXQgbWVzc2FnZSBjb21wYXJp bmcgdG8gdGhlIHJmYyBwb3N0IFsxXSwgdGhlCj5wYXRjaCBpdHNlbGYgaXMgdW50b3VjaGVkLiAg QWxzbyByZW1vdmVkIHJmYyB0YWcsIGFuZCBhZGRlZCBtb3JlIHBlb3BsZQo+aW50byB0aGUgbG9v cC4gUGxlYXNlIGtpbmRseSBoZWxwIHRlc3QgdGhpcyBwYXRjaCBpZiB5b3UgaGF2ZSBhIHJlcHJv ZHVjZXIsCj5hcyBJIGNhbid0IHJlcHJvZHVjZSBpdCBteXNlbGYgZXZlbiB3aXRoIHRoZSBzeXpi b3QgcmVwcm9kdWNlciBvbiB0b3Agb2YKPm1tLXVuc3RhYmxlLiAgSW5zdGVhZCBvZiBmdXJ0aGVy IGNoZWNrIG9uIHRoZSByZXByb2R1Y2VyLCBJIGRlY2lkZWQgdG8gc2VuZAo+dGhpcyBvdXQgZmly c3QgYXMgd2UgaGF2ZSBhIGJ1bmNoIG9mIHJlcHJvZHVjZXJzIG9uIHRoZSBsaXN0IG5vdy4uCj4t LS0KPiBtbS9tZW1vcnkuYyB8IDUgKystLS0KPiAxIGZpbGUgY2hhbmdlZCwgMiBpbnNlcnRpb25z KCspLCAzIGRlbGV0aW9ucygtKQo+Cj5kaWZmIC0tZ2l0IGEvbW0vbWVtb3J5LmMgYi9tbS9tZW1v cnkuYwo+aW5kZXggNGJjZDc5NjE5NTc0Li5mNTdjYzMwNGIzMTggMTAwNjQ0Cj4tLS0gYS9tbS9t ZW1vcnkuYwo+KysrIGIvbW0vbWVtb3J5LmMKPkBAIC0xODI3LDkgKzE4MjcsNiBAQCBzdGF0aWMg dm9pZCB1bm1hcF9zaW5nbGVfdm1hKHN0cnVjdCBtbXVfZ2F0aGVyICp0bGIsCj4gCWlmICh2bWEt PnZtX2ZpbGUpCj4gCQl1cHJvYmVfbXVubWFwKHZtYSwgc3RhcnQsIGVuZCk7Cj4gCj4tCWlmICh1 bmxpa2VseSh2bWEtPnZtX2ZsYWdzICYgVk1fUEZOTUFQKSkKPi0JCXVudHJhY2tfcGZuKHZtYSwg MCwgMCwgbW1fd3JfbG9ja2VkKTsKPi0KPiAJaWYgKHN0YXJ0ICE9IGVuZCkgewo+IAkJaWYgKHVu bGlrZWx5KGlzX3ZtX2h1Z2V0bGJfcGFnZSh2bWEpKSkgewo+IAkJCS8qCj5AQCAtMTg5NCw2ICsx ODkxLDggQEAgdm9pZCB1bm1hcF92bWFzKHN0cnVjdCBtbXVfZ2F0aGVyICp0bGIsIHN0cnVjdCBt YV9zdGF0ZSAqbWFzLAo+IAkJdW5zaWduZWQgbG9uZyBzdGFydCA9IHN0YXJ0X2FkZHI7Cj4gCQl1 bnNpZ25lZCBsb25nIGVuZCA9IGVuZF9hZGRyOwo+IAkJaHVnZXRsYl96YXBfYmVnaW4odm1hLCAm c3RhcnQsICZlbmQpOwo+KwkJaWYgKHVubGlrZWx5KHZtYS0+dm1fZmxhZ3MgJiBWTV9QRk5NQVAp KQo+KwkJCXVudHJhY2tfcGZuKHZtYSwgMCwgMCwgbW1fd3JfbG9ja2VkKTsKPiAJCXVubWFwX3Np bmdsZV92bWEodGxiLCB2bWEsIHN0YXJ0LCBlbmQsICZkZXRhaWxzLAo+IAkJCQkgbW1fd3JfbG9j a2VkKTsKPiAJCWh1Z2V0bGJfemFwX2VuZCh2bWEsICZkZXRhaWxzKTsKPi0tIAo+Mi40NS4wCgpJ IGFwcGx5IHRoaXMgcGF0Y2ggb24gNi4xMC4wLXJjNywgYW5kIGNvbmZpcm1lZCB0aGF0IG5vIGtl cm5lbCB3YXJuaW5nIHNob3dzIHVwIHdoZW4gSSBzdXNwZW5kIG15IHN5c3RlbSh3aXRoIG52aWRp YSBHUFUpLApBZnRlciBzZXZlcmFsIHJvdW5kIG9mIHN1c3BlbmQvcmVzdW1lIGN5Y2xlLCBubyBl cnJvci93YXJuaW5nIG9ic2VydmVkIGluIGtlcm5lbCBsb2cuCgpUaGFua3MKRGF2aWQK