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spf=none smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1hdzeD-0002Ki-VH; Thu, 20 Jun 2019 16:10:49 +0000 Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1hdzeC-0002KY-0G for xen-devel@lists.xenproject.org; Thu, 20 Jun 2019 16:10:48 +0000 X-Inumbo-ID: f59d984f-9375-11e9-8980-bc764e045a96 Received: from mga02.intel.com (unknown [134.134.136.20]) by us1-rack-dfw2.inumbo.com (Halon) with ESMTPS id f59d984f-9375-11e9-8980-bc764e045a96; Thu, 20 Jun 2019 16:10:45 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga007.jf.intel.com ([10.7.209.58]) by orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 20 Jun 2019 09:10:45 -0700 X-IronPort-AV: E=Sophos;i="5.63,397,1557212400"; d="scan'208";a="150979509" Received: from ahduyck-desk1.jf.intel.com ([10.7.198.76]) by orsmga007-auth.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 20 Jun 2019 09:10:44 -0700 Message-ID: <2299c1a5b8773c955e7d0c3803ad3fc6c83c127a.camel@linux.intel.com> From: Alexander Duyck To: Juergen Gross , xen-devel@lists.xenproject.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Date: Thu, 20 Jun 2019 09:10:44 -0700 In-Reply-To: <20190620160821.4210-1-jgross@suse.com> References: <20190620160821.4210-1-jgross@suse.com> User-Agent: Evolution 3.30.5 (3.30.5-1.fc29) MIME-Version: 1.0 Subject: Re: [Xen-devel] [PATCH] mm: fix regression with deferred struct page init X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" T24gVGh1LCAyMDE5LTA2LTIwIGF0IDE4OjA4ICswMjAwLCBKdWVyZ2VuIEdyb3NzIHdyb3RlOgo+ IENvbW1pdCAwZTU2YWNhZTRiNGRkNGE5ICgibW06IGluaXRpYWxpemUgTUFYX09SREVSX05SX1BB R0VTIGF0IGEgdGltZQo+IGluc3RlYWQgb2YgZG9pbmcgbGFyZ2VyIHNlY3Rpb25zIikgaXMgY2F1 c2luZyBhIHJlZ3Jlc3Npb24gb24gc29tZQo+IHN5c3RlbXMgd2hlbiB0aGUga2VybmVsIGlzIGJv b3RlZCBhcyBYZW4gZG9tMC4KPiAKPiBUaGUgc3lzdGVtIHdpbGwganVzdCBoYW5nIGluIGVhcmx5 IGJvb3QuCj4gCj4gUmVhc29uIGlzIGFuIGVuZGxlc3MgbG9vcCBpbiBnZXRfcGFnZV9mcm9tX2Zy ZWVsaXN0KCkgaW4gY2FzZSB0aGUgZmlyc3QKPiB6b25lIGxvb2tlZCBhdCBoYXMgbm8gZnJlZSBt ZW1vcnkuIGRlZmVycmVkX2dyb3dfem9uZSgpIGlzIGFsd2F5cwo+IHJldHVybmluZyB0cnVlIGR1 ZSB0byB0aGUgZm9sbG93aW5nIGNvZGUgc25pcHBsZXQ6Cj4gCj4gICAvKiBJZiB0aGUgem9uZSBp cyBlbXB0eSBzb21lYm9keSBlbHNlIG1heSBoYXZlIGNsZWFyZWQgb3V0IHRoZSB6b25lICovCj4g ICBpZiAoIWRlZmVycmVkX2luaXRfbWVtX3Bmbl9yYW5nZV9pbl96b25lKCZpLCB6b25lLCAmc3Bm biwgJmVwZm4sCj4gICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIGZp cnN0X2RlZmVycmVkX3BmbikpIHsKPiAgICAgICAgICAgcGdkYXQtPmZpcnN0X2RlZmVycmVkX3Bm biA9IFVMT05HX01BWDsKPiAgICAgICAgICAgcGdkYXRfcmVzaXplX3VubG9jayhwZ2RhdCwgJmZs YWdzKTsKPiAgICAgICAgICAgcmV0dXJuIHRydWU7Cj4gICB9Cj4gCj4gVGhpcyBpbiB0dXJuIHJl c3VsdHMgaW4gdGhlIGxvb3AgYXMgZ2V0X3BhZ2VfZnJvbV9mcmVlbGlzdCgpIGlzCj4gYXNzdW1p bmcgZm9yd2FyZCBwcm9ncmVzcyBjYW4gYmUgbWFkZSBieSBkb2luZyBzb21lIG1vcmUgc3RydWN0 IHBhZ2UKPiBpbml0aWFsaXphdGlvbi4KPiAKPiBDYzogQWxleGFuZGVyIER1eWNrIDxhbGV4YW5k ZXIuaC5kdXlja0BsaW51eC5pbnRlbC5jb20+Cj4gRml4ZXM6IDBlNTZhY2FlNGI0ZGQ0YTkgKCJt bTogaW5pdGlhbGl6ZSBNQVhfT1JERVJfTlJfUEFHRVMgYXQgYSB0aW1lIGluc3RlYWQgb2YgZG9p bmcgbGFyZ2VyIHNlY3Rpb25zIikKPiBTdWdnZXN0ZWQtYnk6IEFsZXhhbmRlciBEdXljayA8YWxl eGFuZGVyLmguZHV5Y2tAbGludXguaW50ZWwuY29tPgo+IFNpZ25lZC1vZmYtYnk6IEp1ZXJnZW4g R3Jvc3MgPGpncm9zc0BzdXNlLmNvbT4KCkFja2VkLWJ5OiBBbGV4YW5kZXIgRHV5Y2sgPGFsZXhh bmRlci5oLmR1eWNrQGxpbnV4LmludGVsLmNvbT4KCj4gLS0tCj4gIG1tL3BhZ2VfYWxsb2MuYyB8 IDMgKystCj4gIDEgZmlsZSBjaGFuZ2VkLCAyIGluc2VydGlvbnMoKyksIDEgZGVsZXRpb24oLSkK PiAKPiBkaWZmIC0tZ2l0IGEvbW0vcGFnZV9hbGxvYy5jIGIvbW0vcGFnZV9hbGxvYy5jCj4gaW5k ZXggZDY2YmM4YWJlMGFmLi44ZTNiYzk0OWViY2MgMTAwNjQ0Cj4gLS0tIGEvbW0vcGFnZV9hbGxv Yy5jCj4gKysrIGIvbW0vcGFnZV9hbGxvYy5jCj4gQEAgLTE4MjYsNyArMTgyNiw4IEBAIGRlZmVy cmVkX2dyb3dfem9uZShzdHJ1Y3Qgem9uZSAqem9uZSwgdW5zaWduZWQgaW50IG9yZGVyKQo+ICAJ CQkJCQkgZmlyc3RfZGVmZXJyZWRfcGZuKSkgewo+ICAJCXBnZGF0LT5maXJzdF9kZWZlcnJlZF9w Zm4gPSBVTE9OR19NQVg7Cj4gIAkJcGdkYXRfcmVzaXplX3VubG9jayhwZ2RhdCwgJmZsYWdzKTsK PiAtCQlyZXR1cm4gdHJ1ZTsKPiArCQkvKiBSZXRyeSBvbmx5IG9uY2UuICovCj4gKwkJcmV0dXJu IGZpcnN0X2RlZmVycmVkX3BmbiAhPSBVTE9OR19NQVg7Cj4gIAl9Cj4gIAo+ICAJLyoKCgoKX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1h aWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVucHJvamVjdC5vcmcKaHR0cHM6Ly9saXN0cy54 ZW5wcm9qZWN0Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL3hlbi1kZXZlbA==