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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 1hgWR7-0005eN-Vk; Thu, 27 Jun 2019 15:35:45 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1hgWR6-0005dd-4E for xen-devel@lists.xenproject.org; Thu, 27 Jun 2019 15:35:44 +0000 X-Inumbo-ID: 382f85de-98f1-11e9-9668-73b155f5190e Received: from mx1.suse.de (unknown [195.135.220.15]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 382f85de-98f1-11e9-9668-73b155f5190e; Thu, 27 Jun 2019 15:35:41 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 50103ABC4; Thu, 27 Jun 2019 15:35:40 +0000 (UTC) To: xen-devel@lists.xenproject.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <20190620160821.4210-1-jgross@suse.com> <79797c17-58d6-b09c-3aad-73e375a7f208@suse.com> From: Juergen Gross Message-ID: Date: Thu, 27 Jun 2019 17:35:39 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 In-Reply-To: <79797c17-58d6-b09c-3aad-73e375a7f208@suse.com> Content-Language: de-DE 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: , Cc: rppt@linux.ibm.com, Alexander Duyck , Michal Hocko , Andrew Morton , pasha.tatashin@soleen.com Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" T24gMjUuMDYuMTkgMTA6MjUsIEp1ZXJnZW4gR3Jvc3Mgd3JvdGU6Cj4gR2VudGxlIHBpbmcuCj4g Cj4gSSdkIHJlYWxseSBsaWtlIHRvIGhhdmUgdGhhdCBpbiA1LjIgaW4gb3JkZXIgdG8gYXZvaWQg dGhlIHJlZ3Jlc3Npb24KPiBpbnRyb2R1Y2VkIHdpdGggNS4yLXJjMS4KCkFkZGluZyBzb21lIG1h aW50YWluZXJzIGRpcmVjdGx5Li4uCgoKSnVlcmdlbgoKPiAKPiAKPiBKdWVyZ2VuCj4gCj4gT24g MjAuMDYuMTkgMTg6MDgsIEp1ZXJnZW4gR3Jvc3Mgd3JvdGU6Cj4+IENvbW1pdCAwZTU2YWNhZTRi NGRkNGE5ICgibW06IGluaXRpYWxpemUgTUFYX09SREVSX05SX1BBR0VTIGF0IGEgdGltZQo+PiBp bnN0ZWFkIG9mIGRvaW5nIGxhcmdlciBzZWN0aW9ucyIpIGlzIGNhdXNpbmcgYSByZWdyZXNzaW9u IG9uIHNvbWUKPj4gc3lzdGVtcyB3aGVuIHRoZSBrZXJuZWwgaXMgYm9vdGVkIGFzIFhlbiBkb20w Lgo+Pgo+PiBUaGUgc3lzdGVtIHdpbGwganVzdCBoYW5nIGluIGVhcmx5IGJvb3QuCj4+Cj4+IFJl YXNvbiBpcyBhbiBlbmRsZXNzIGxvb3AgaW4gZ2V0X3BhZ2VfZnJvbV9mcmVlbGlzdCgpIGluIGNh c2UgdGhlIGZpcnN0Cj4+IHpvbmUgbG9va2VkIGF0IGhhcyBubyBmcmVlIG1lbW9yeS4gZGVmZXJy ZWRfZ3Jvd196b25lKCkgaXMgYWx3YXlzCj4+IHJldHVybmluZyB0cnVlIGR1ZSB0byB0aGUgZm9s bG93aW5nIGNvZGUgc25pcHBsZXQ6Cj4+Cj4+IMKgwqAgLyogSWYgdGhlIHpvbmUgaXMgZW1wdHkg c29tZWJvZHkgZWxzZSBtYXkgaGF2ZSBjbGVhcmVkIG91dCB0aGUgem9uZSAqLwo+PiDCoMKgIGlm ICghZGVmZXJyZWRfaW5pdF9tZW1fcGZuX3JhbmdlX2luX3pvbmUoJmksIHpvbmUsICZzcGZuLCAm ZXBmbiwKPj4gwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAgZmlyc3RfZGVmZXJyZWRfcGZu KSkgewo+PiDCoMKgwqDCoMKgwqDCoMKgwqDCoCBwZ2RhdC0+Zmlyc3RfZGVmZXJyZWRfcGZuID0g VUxPTkdfTUFYOwo+PiDCoMKgwqDCoMKgwqDCoMKgwqDCoCBwZ2RhdF9yZXNpemVfdW5sb2NrKHBn ZGF0LCAmZmxhZ3MpOwo+PiDCoMKgwqDCoMKgwqDCoMKgwqDCoCByZXR1cm4gdHJ1ZTsKPj4gwqDC oCB9Cj4+Cj4+IFRoaXMgaW4gdHVybiByZXN1bHRzIGluIHRoZSBsb29wIGFzIGdldF9wYWdlX2Zy b21fZnJlZWxpc3QoKSBpcwo+PiBhc3N1bWluZyBmb3J3YXJkIHByb2dyZXNzIGNhbiBiZSBtYWRl IGJ5IGRvaW5nIHNvbWUgbW9yZSBzdHJ1Y3QgcGFnZQo+PiBpbml0aWFsaXphdGlvbi4KPj4KPj4g Q2M6IEFsZXhhbmRlciBEdXljayA8YWxleGFuZGVyLmguZHV5Y2tAbGludXguaW50ZWwuY29tPgo+ PiBGaXhlczogMGU1NmFjYWU0YjRkZDRhOSAoIm1tOiBpbml0aWFsaXplIE1BWF9PUkRFUl9OUl9Q QUdFUyBhdCBhIHRpbWUgCj4+IGluc3RlYWQgb2YgZG9pbmcgbGFyZ2VyIHNlY3Rpb25zIikKPj4g U3VnZ2VzdGVkLWJ5OiBBbGV4YW5kZXIgRHV5Y2sgPGFsZXhhbmRlci5oLmR1eWNrQGxpbnV4Lmlu dGVsLmNvbT4KPj4gU2lnbmVkLW9mZi1ieTogSnVlcmdlbiBHcm9zcyA8amdyb3NzQHN1c2UuY29t Pgo+PiAtLS0KPj4gwqAgbW0vcGFnZV9hbGxvYy5jIHwgMyArKy0KPj4gwqAgMSBmaWxlIGNoYW5n ZWQsIDIgaW5zZXJ0aW9ucygrKSwgMSBkZWxldGlvbigtKQo+Pgo+PiBkaWZmIC0tZ2l0IGEvbW0v cGFnZV9hbGxvYy5jIGIvbW0vcGFnZV9hbGxvYy5jCj4+IGluZGV4IGQ2NmJjOGFiZTBhZi4uOGUz YmM5NDllYmNjIDEwMDY0NAo+PiAtLS0gYS9tbS9wYWdlX2FsbG9jLmMKPj4gKysrIGIvbW0vcGFn ZV9hbGxvYy5jCj4+IEBAIC0xODI2LDcgKzE4MjYsOCBAQCBkZWZlcnJlZF9ncm93X3pvbmUoc3Ry dWN0IHpvbmUgKnpvbmUsIHVuc2lnbmVkIAo+PiBpbnQgb3JkZXIpCj4+IMKgwqDCoMKgwqDCoMKg wqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAgZmlyc3RfZGVmZXJyZWRfcGZu KSkgewo+PiDCoMKgwqDCoMKgwqDCoMKgwqAgcGdkYXQtPmZpcnN0X2RlZmVycmVkX3BmbiA9IFVM T05HX01BWDsKPj4gwqDCoMKgwqDCoMKgwqDCoMKgIHBnZGF0X3Jlc2l6ZV91bmxvY2socGdkYXQs ICZmbGFncyk7Cj4+IC3CoMKgwqDCoMKgwqDCoCByZXR1cm4gdHJ1ZTsKPj4gK8KgwqDCoMKgwqDC oMKgIC8qIFJldHJ5IG9ubHkgb25jZS4gKi8KPj4gK8KgwqDCoMKgwqDCoMKgIHJldHVybiBmaXJz dF9kZWZlcnJlZF9wZm4gIT0gVUxPTkdfTUFYOwo+PiDCoMKgwqDCoMKgIH0KPj4gwqDCoMKgwqDC oCAvKgo+Pgo+IAo+IAo+IF9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fCj4gWGVuLWRldmVsIG1haWxpbmcgbGlzdAo+IFhlbi1kZXZlbEBsaXN0cy54ZW5wcm9q ZWN0Lm9yZwo+IGh0dHBzOi8vbGlzdHMueGVucHJvamVjdC5vcmcvbWFpbG1hbi9saXN0aW5mby94 ZW4tZGV2ZWwKCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f XwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW5wcm9qZWN0Lm9yZwpo dHRwczovL2xpc3RzLnhlbnByb2plY3Qub3JnL21haWxtYW4vbGlzdGluZm8veGVuLWRldmVs