From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx1.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 7DDFB20945C0A for ; Mon, 13 Aug 2018 07:29:11 -0700 (PDT) Date: Mon, 13 Aug 2018 10:29:06 -0400 From: Jerome Glisse Subject: Re: [PATCH V3 3/4] mm: add a function to differentiate the pages is from DAX device memory Message-ID: <20180813142906.GA3451@redhat.com> References: <2b7856596e519130946c834d5d61b00b7f592770.1533811181.git.yi.z.zhang@linux.intel.com> <872818364.892078.1533806608252.JavaMail.zimbra@redhat.com> <5ea50e63-b55a-c1e1-50be-6e2d951c04cf@linux.intel.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <5ea50e63-b55a-c1e1-50be-6e2d951c04cf@linux.intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: linux-nvdimm-bounces@lists.01.org Sender: "Linux-nvdimm" To: "Zhang,Yi" Cc: jack@suse.cz, yu c zhang , kvm@vger.kernel.org, linux-nvdimm@lists.01.org, rkrcmar@redhat.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, pbonzini@redhat.com, hch@lst.de, yi z zhang List-ID: T24gVHVlLCBBdWcgMTQsIDIwMTggYXQgMDE6NDE6NDBBTSArMDgwMCwgWmhhbmcsWWkgd3JvdGU6 Cj4gCj4gCj4gT24gMjAxOOW5tDA45pyIMDnml6UgMTc6MjMsIFBhbmthaiBHdXB0YSB3cm90ZToK PiA+PiBEQVggZHJpdmVyIGhvdHBsdWcgdGhlIGRldmljZSBtZW1vcnkgYW5kIG1vdmUgaXQgdG8g bWVtb3J5IHpvbmUsIHRoZXNlCj4gPj4gcGFnZXMgd2lsbCBiZSBtYXJrZWQgcmVzZXJ2ZWQgZmxh ZywgaG93ZXZlciwgc29tZSBvdGhlciBrZXJuZWwgY29tcG9uZXQKPiA+PiB3aWxsIG1pc2NvbmNl aXZlIHRoZXNlIHBhZ2VzIGFyZSByZXNlcnZlZCBtbWlvIChleDogd2UgbWFwIHRoZXNlIGRldl9k YXgKPiA+PiBvciBmc19kYXggcGFnZXMgdG8ga3ZtIGZvciBESU1NL05WRElNTSBiYWNrZW5kKS4g VG9nZXRoZXIgd2l0aCB0aGUgdHlwZQo+ID4+IE1FTU9SWV9ERVZJQ0VfRlNfREFYLCB3ZSBjYW4g dXNlIGlzX2RheF9wYWdlKCkgdG8gZGlmZmVyZW50aWF0ZSB0aGUgcGFnZXMKPiA+PiBpcyBEQVgg ZGV2aWNlIG1lbW9yeSBvciBub3QuCj4gPj4KPiA+PiBTaWduZWQtb2ZmLWJ5OiBaaGFuZyBZaSA8 eWkuei56aGFuZ0BsaW51eC5pbnRlbC5jb20+Cj4gPj4gU2lnbmVkLW9mZi1ieTogWmhhbmcgWXUg PHl1LmMuemhhbmdAbGludXguaW50ZWwuY29tPgo+ID4+IC0tLQo+ID4+ICBpbmNsdWRlL2xpbnV4 L21tLmggfCAxMiArKysrKysrKysrKysKPiA+PiAgMSBmaWxlIGNoYW5nZWQsIDEyIGluc2VydGlv bnMoKykKPiA+Pgo+ID4+IGRpZmYgLS1naXQgYS9pbmNsdWRlL2xpbnV4L21tLmggYi9pbmNsdWRl L2xpbnV4L21tLmgKPiA+PiBpbmRleCA2OGE1MTIxLi5kZTVjYmMzIDEwMDY0NAo+ID4+IC0tLSBh L2luY2x1ZGUvbGludXgvbW0uaAo+ID4+ICsrKyBiL2luY2x1ZGUvbGludXgvbW0uaAo+ID4+IEBA IC04ODksNiArODg5LDEzIEBAIHN0YXRpYyBpbmxpbmUgYm9vbCBpc19kZXZpY2VfcHVibGljX3Bh Z2UoY29uc3Qgc3RydWN0Cj4gPj4gcGFnZSAqcGFnZSkKPiA+PiAgCQlwYWdlLT5wZ21hcC0+dHlw ZSA9PSBNRU1PUllfREVWSUNFX1BVQkxJQzsKPiA+PiAgfQo+ID4+ICAKPiA+PiArc3RhdGljIGlu bGluZSBib29sIGlzX2RheF9wYWdlKGNvbnN0IHN0cnVjdCBwYWdlICpwYWdlKQo+ID4+ICt7Cj4g Pj4gKwlyZXR1cm4gaXNfem9uZV9kZXZpY2VfcGFnZShwYWdlKSAmJgo+ID4+ICsJCShwYWdlLT5w Z21hcC0+dHlwZSA9PSBNRU1PUllfREVWSUNFX0ZTX0RBWCB8fAo+ID4+ICsJCXBhZ2UtPnBnbWFw LT50eXBlID09IE1FTU9SWV9ERVZJQ0VfREVWX0RBWCk7Cj4gPj4gK30KPiA+IEkgdGhpbmsgcXVl c3Rpb24gZnJvbSBEYW4gZm9yIEtWTSBWTSB3aXRoICdNRU1PUllfREVWSUNFX1BVQkxJQycgc3Rp bGwgaG9sZHM/Cj4gPiBJIGFtIGFsc28gaW50ZXJlc3RlZCB0byBrbm93IGlmIHRoZXJlIGlzIGFu eSB1c2UtY2FzZS4KPiA+Cj4gPiBUaGFua3MsCj4gPiBQYW5rYWoKPiBZZXMsIGl0IGlzLCB0aGFu a3MgZm9yIHlvdXIgcmVtaW5kLCBQYW5rYWouCj4gQWRkaW5nIEplcm9tZSBmb3IgRGFuJ3MgcXVl c3Rpb25zIG9uIFYxOgo+IFtEYW5dOgo+IAo+IEplcm9tZSwgbWlnaHQgdGhlcmUgYmUgYW55IHVz ZSBjYXNlIHRvIHBhc3MgTUVNT1JZX0RFVklDRV9QVUJMSUMKPiBtZW1vcnkgdG8gYSBndWVzdCB2 bT8KClllcyBhbmQgbm8sIGkgYW0gbm90IHN1cmUgaG93IHdlIGFyZSBnb2luZyB0byBkbyBpdC4g QnV0IGJlaW5nIGFibGUgdG8Kc2hhcmUgR1BVIGFtb25nIG11bHRpcGxlIFZNIGlzIG9uIFRPRE8g bGlzdCBhbmQgdGhvc2UgR1BVIHdpbGwgaGF2ZQpNRU1PUllfREVWSUNFX1BVQkxJQ3xQUklWQVRF IGRlcGVuZGluZyBvbiB0aGUgcGxhdGZvcm0uIFNvIGVpdGhlciB3ZQpwYXNzIGRvd24gdGhlIHJl YWwgdW5kZXJseWluZyByZXNvdXJjZSB0byB0aGUgZ3Vlc3QsIG9yIHdlIHdpbGwgcGFzcwpkb3du IGEgZmFrZSBvbmUgYW5kIGhhdmUgZ3Vlc3QgYW5kIGhvc3QgZHJpdmVyIHRhbGsgdG8gZWFjaCBv dGhlciBzbwp0aGF0IHRoZSBob3N0IGRyaXZlciBjYW4gZG8gb3ZlcmFsbCByZXNvdXJjZSBtYW5h Z2VtZW50IGFjY3Jvc3MgbXVsdGlwbGUKZ3Vlc3RzLgoKU28gaSB3b3VsZCBzYXkgdGhhdCBmb3Ig bm93IHlvdSBjYW4gaWdub3JlIE1FTU9SWV9ERVZJQ0VfUFVCTElDIGFuZCB3aGVuCndlIGdldCB0 byB0aGUgS1ZNIGd1ZXN0IHNoYXJpbmcgb2YgdGhvc2UgYW5kIGRlY2lkZSBob3cgd2Ugd2FudCB0 byBkbwppdCB0aGVuIHdlIGNhbiB1cGRhdGUga3ZtIHRvIHByb3Blcmx5IGludGVycHJldCB0aG9z ZS4KCkNoZWVycywKSsOpcsO0bWUKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX18KTGludXgtbnZkaW1tIG1haWxpbmcgbGlzdApMaW51eC1udmRpbW1AbGlzdHMu MDEub3JnCmh0dHBzOi8vbGlzdHMuMDEub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtbnZkaW1t Cg==