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Thu, 14 Oct 2021 20:57:28 +0000 Received: from HQMAIL105.nvidia.com (172.20.187.12) by HQMAIL101.nvidia.com (172.20.187.10) with Microsoft SMTP Server (TLS) id 15.0.1497.18; Thu, 14 Oct 2021 20:57:28 +0000 Received: from HQMAIL111.nvidia.com (172.20.187.18) by HQMAIL105.nvidia.com (172.20.187.12) with Microsoft SMTP Server (TLS) id 15.0.1497.18; Thu, 14 Oct 2021 20:57:27 +0000 Received: from rcampbell-test.nvidia.com (172.20.187.5) by mail.nvidia.com (172.20.187.18) with Microsoft SMTP Server (TLS) id 15.0.1497.18 via Frontend Transport; Thu, 14 Oct 2021 20:57:27 +0000 Subject: Re: [PATCH v1 2/2] mm: remove extra ZONE_DEVICE struct page refcount To: Jason Gunthorpe CC: Alex Sierra , , , , , , , , , , , References: <20211014153928.16805-1-alex.sierra@amd.com> <20211014153928.16805-3-alex.sierra@amd.com> <20211014170634.GV2744544@nvidia.com> <20211014180132.GA3567687@nvidia.com> From: Ralph Campbell Message-ID: Date: Thu, 14 Oct 2021 13:57:27 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; 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X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Oct 2021 20:57:28.9928 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: fb1a4024-13e8-4cc7-e460-08d98f553c05 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.112.36];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BN8NAM11FT016.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR12MB1151 Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org On 10/14/21 11:01 AM, Jason Gunthorpe wrote: > On Thu, Oct 14, 2021 at 10:35:27AM -0700, Ralph Campbell wrote: > >> I ran xfstests-dev using the kernel boot option to "fake" a pmem device >> when I first posted this patch. The tests ran OK (or at least the same >> tests passed with and without my patch). > Hmm. I know nothing of xfstests but > > tests/generic/413 > > Looks kind of like it might cover this situation? > > Did it run for you? > > Jason I don't remember. I'll have to rerun the test which might take a day or two to set up again.