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[79.242.58.175]) by smtp.gmail.com with ESMTPSA id g25sm18544739wrc.88.2021.09.28.00.33.38 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 28 Sep 2021 00:33:38 -0700 (PDT) Subject: Re: [RFC] arm64: mm: update max_pfn after memory hotplug To: Chris Goldsworthy , Georgi Djakov Cc: Catalin Marinas , Will Deacon , Andrew Morton , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Sudarshan Rajagopalan References: <595d09279824faf1f54961cef52b745609b05d97.1632437225.git.quic_cgoldswo@quicinc.com> <833493d2-d585-47ee-c258-79eae5deff36@redhat.com> <20210928061016.GA28837@hu-cgoldswo-sd.qualcomm.com> From: David Hildenbrand Organization: Red Hat Message-ID: <94d477d0-5d05-b2c3-850e-0a749c888f3b@redhat.com> Date: Tue, 28 Sep 2021 09:33:38 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: <20210928061016.GA28837@hu-cgoldswo-sd.qualcomm.com> Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=david@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210928_003344_133543_6CC51BA4 X-CRM114-Status: GOOD ( 21.66 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gMjguMDkuMjEgMDg6MTIsIENocmlzIEdvbGRzd29ydGh5IHdyb3RlOgo+IE9uIFR1ZSwgU2Vw IDI4LCAyMDIxIGF0IDAyOjIyOjU5QU0gKzAzMDAsIEdlb3JnaSBEamFrb3Ygd3JvdGU6Cj4+IE9u IDkvMjcvMjAyMSA2OjUxIFBNLCBEYXZpZCBIaWxkZW5icmFuZCB3cm90ZToKPj4+IE9uIDI0LjA5 LjIxIDAwOjU0LCBDaHJpcyBHb2xkc3dvcnRoeSB3cm90ZToKPj4+PiBGcm9tOiBTdWRhcnNoYW4g UmFqYWdvcGFsYW4gPHF1aWNfc3VkYXJhamFAcXVpY2luYy5jb20+Cj4+Pj4KPj4+PiBBZnRlciBu ZXcgbWVtb3J5IGJsb2NrcyBoYXZlIGJlZW4gaG90cGx1Z2dlZCwgbWF4X3BmbiBhbmQgbWF4X2xv d19wZm4KPj4+PiBuZWVkcyB1cGRhdGluZyB0byByZWZsZWN0IG9uIG5ldyBQRk5zIGJlaW5nIGhv dCBhZGRlZCB0byBzeXN0ZW0uCj4+Pj4KPj4+PiBTaWduZWQtb2ZmLWJ5OiBTdWRhcnNoYW4gUmFq YWdvcGFsYW4gPHF1aWNfc3VkYXJhamFAcXVpY2luYy5jb20+Cj4+Pj4gU2lnbmVkLW9mZi1ieTog Q2hyaXMgR29sZHN3b3J0aHkgPHF1aWNfY2dvbGRzd29AcXVpY2luYy5jb20+Cj4+Pj4gLS0tCj4+ Pj4gIMKgIGFyY2gvYXJtNjQvbW0vbW11LmMgfCA1ICsrKysrCj4+Pj4gIMKgIDEgZmlsZSBjaGFu Z2VkLCA1IGluc2VydGlvbnMoKykKPj4+Pgo+Pj4+IGRpZmYgLS1naXQgYS9hcmNoL2FybTY0L21t L21tdS5jIGIvYXJjaC9hcm02NC9tbS9tbXUuYwo+Pj4+IGluZGV4IGNmZDlkZWIuLmZkODViNTEg MTAwNjQ0Cj4+Pj4gLS0tIGEvYXJjaC9hcm02NC9tbS9tbXUuYwo+Pj4+ICsrKyBiL2FyY2gvYXJt NjQvbW0vbW11LmMKPj4+PiBAQCAtMTQ5OSw2ICsxNDk5LDExIEBAIGludCBhcmNoX2FkZF9tZW1v cnkoaW50IG5pZCwgdTY0IHN0YXJ0LCB1NjQgc2l6ZSwKPj4+PiAgwqDCoMKgwqDCoCBpZiAocmV0 KQo+Pj4+ICDCoMKgwqDCoMKgwqDCoMKgwqAgX19yZW1vdmVfcGdkX21hcHBpbmcoc3dhcHBlcl9w Z19kaXIsCj4+Pj4gIMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg IF9fcGh5c190b192aXJ0KHN0YXJ0KSwgc2l6ZSk7Cj4+Pj4gK8KgwqDCoCBlbHNlIHsKPj4+PiAr wqDCoMKgwqDCoMKgwqAgbWF4X3BmbiA9IFBGTl9VUChzdGFydCArIHNpemUpOwo+Pj4+ICvCoMKg wqDCoMKgwqDCoCBtYXhfbG93X3BmbiA9IG1heF9wZm47Cj4+Pj4gK8KgwqDCoCB9Cj4+Pj4gKwo+ Pj4+ICDCoMKgwqDCoMKgIHJldHVybiByZXQ7Cj4+Pgo+Pj4gTm90ZTogZGlkbid0IHZlcmlmeSBp ZiB1cGRhdGluZyBtYXhfbG93X3BmbiBpcyBjb3JyZWN0IGhlcmUuCj4+Cj4+IE15IHVuZGVyc3Rh bmRpbmcgaXMgdGhhdCBtYXhfbG93X3BmbiBkZWZpbmVzIHRoZSBsb3cvaGlnaCBtZW1vcnkKPj4g Ym91bmRhcnkgYW5kIGl0IHNob3VsZCBiZSBhbHNvIHVwZGF0ZWQuCj4+Cj4+IFRoYW5rcywKPj4g R2VvcmdpCj4gCj4gVG8gYnVpbGQgbW9yZSBvbiBHZW9yZ2kncyByZXNwb25zZSwgb3VyIGFzc3Vt cHRpb24gaGVyZSBhZnRlciBhbiBvZmZsaW5lCj4gZGlzY3Vzc2lvbiBpcyB0aGF0IG1heF9sb3df cGZuIHdvdWxkIG5vdCBiZSBlcXVhbCB0byBtYXhfcGZuIG9ubHkgaWYgdGhlcmUgaXMKPiBoaWdo IG1lbW9yeSAtIGFub3RoZXIgYXNzdW1wdGlvbiBpcyB0aGF0IGFybTY0IGtlcm5lbHMgd2lsbCBu b3QgbmVlZCBoaWdoIG1lbW9yeQo+IGR1ZSB0byB0aGVpciBsYXJnZSBsb2dpY2FsIG1hcHBpbmdz LiBVbmRlciB0aGVzZSB0d28gYXNzdW1wdGlvbnMsIHRoZSBwYXRjaCBpcwo+IGNvcnJlY3QuIFBl cmhhcHMgQ2F0YWxpbiBjYW4gYWNrIG9yIGNyaXRpcXVlIHRoaXMsIGFzIGhlIGluaXRpYWxseSBz ZXQgbWF4X3BmbiA9Cj4gbWF4X2xvd19wZm4gaW4gdGhlIGZpcnN0IGFybTY0IG1tIGluaXRpYWxp emF0aW9uIGNvZGU6CgpNYWtlcyBzZW5zZSB0byBtZSwgdGhhbmtzLgoKCi0tIApUaGFua3MsCgpE YXZpZCAvIGRoaWxkZW5iCgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX18KbGludXgtYXJtLWtlcm5lbCBtYWlsaW5nIGxpc3QKbGludXgtYXJtLWtlcm5lbEBs aXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlz dGluZm8vbGludXgtYXJtLWtlcm5lbAo=