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Fri, 10 Jul 2020 13:13:51 +0000 From: Justin He To: David Hildenbrand , Catalin Marinas , Will Deacon , Tony Luck , Fenghua Yu , Yoshinori Sato , Rich Felker , Dave Hansen , Andy Lutomirski , Peter Zijlstra , Thomas Gleixner , Ingo Molnar , Borislav Petkov Subject: RE: [PATCH v4 0/2] Fix and enable pmem as RAM device on arm64 Thread-Topic: [PATCH v4 0/2] Fix and enable pmem as RAM device on arm64 Thread-Index: AQHWVmiq+FAjJUzClE67BDeP0d/JJ6kAe80AgABODeA= Date: Fri, 10 Jul 2020 13:13:51 +0000 Message-ID: References: <20200710031619.18762-1-justin.he@arm.com> <23e79097-6517-a301-b0da-4d5505de3d3f@redhat.com> In-Reply-To: <23e79097-6517-a301-b0da-4d5505de3d3f@redhat.com> Accept-Language: en-US, zh-CN Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ts-tracking-id: b0781ec9-66de-46d5-8cf6-0de601389276.0 x-checkrecipientchecked: true Authentication-Results-Original: redhat.com; dkim=none (message not signed) header.d=none;redhat.com; dmarc=none action=none header.from=arm.com; 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Ip=[63.35.35.123]; Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-AuthSource: DB5EUR03FT038.eop-EUR03.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR08MB3549 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200710_091415_149997_523427F8 X-CRM114-Status: GOOD ( 20.61 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kaly Xin , Michal Hocko , Dave Jiang , Baoquan He , "linux-sh@vger.kernel.org" , Vishal Verma , Masahiro Yamada , "x86@kernel.org" , Chuhong Yuan , "linux-kernel@vger.kernel.org" , Mike Rapoport , "linux-mm@kvack.org" , "linux-nvdimm@lists.01.org" , Jonathan Cameron , "H. Peter Anvin" , "linux-ia64@vger.kernel.org" , Dan Williams , Logan Gunthorpe , Andrew Morton , "linux-arm-kernel@lists.infradead.org" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi David > -----Original Message----- > From: David Hildenbrand > Sent: Friday, July 10, 2020 4:30 PM > To: Justin He ; Catalin Marinas > ; Will Deacon ; Tony Luck > ; Fenghua Yu ; Yoshinori Sato > ; Rich Felker ; Dave Hansen > ; Andy Lutomirski ; Peter > Zijlstra ; Thomas Gleixner ; > Ingo Molnar ; Borislav Petkov > Cc: x86@kernel.org; H. Peter Anvin ; Dan Williams > ; Vishal Verma ; Dave > Jiang ; Andrew Morton ; > Baoquan He ; Chuhong Yuan ; Mike > Rapoport ; Logan Gunthorpe ; > Masahiro Yamada ; Michal Hocko ; > linux-arm-kernel@lists.infradead.org; linux-kernel@vger.kernel.org; linux- > ia64@vger.kernel.org; linux-sh@vger.kernel.org; linux-nvdimm@lists.01.org; > linux-mm@kvack.org; Jonathan Cameron ; Kaly > Xin > Subject: Re: [PATCH v4 0/2] Fix and enable pmem as RAM device on arm64 > > On 10.07.20 05:16, Jia He wrote: > > This fixies a few issues when I tried to enable pmem as RAM device on > arm64. > > > > To use memory_add_physaddr_to_nid as a fallback nid, it would be better > > implement a general version (__weak) in mm/memory_hotplug. After that, > arm64/ > > sh/s390 can simply use the general version, and PowerPC/ia64/x86 will > use > > arch specific version. > > > > Tested on ThunderX2 host/qemu "-M virt" guest with a nvdimm device. The > > memblocks from the dax pmem device can be either hot-added or hot- > removed > > on arm64 guest. Also passed the compilation test on x86. > > > > Changes: > > v4: - remove "device-dax: use fallback nid when numa_node is invalid", > wait > > for Dan Williams' phys_addr_to_target_node() patch > > So, this series no longer does what it promises? "Fix and enable pmem as > RAM device on arm64" > Hmm, a little bit awkward but seems no long what it promises. How about sending patch1 patch2 individually without this cover-letter? -- Cheers, Justin (Jia He) _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel