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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Oct 2021 15:39:39.8541 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: caa3a6e3-5675-483e-9d6e-08d98f28d5ef X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CO1NAM11FT022.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB4579 Authentication-Results: imf26.hostedemail.com; dkim=pass header.d=amd.com header.s=selector1 header.b="R9ZBGs/3"; dmarc=pass (policy=quarantine) header.from=amd.com; spf=pass (imf26.hostedemail.com: domain of Alex.Sierra@amd.com designates 40.107.93.40 as permitted sender) smtp.mailfrom=Alex.Sierra@amd.com X-Stat-Signature: pw8nuewa7k6oh4nni764cnbhwxejybnq X-Rspamd-Queue-Id: 20BB220019D6 X-Rspamd-Server: rspam01 X-HE-Tag: 1634225985-278896 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: This patch cleans up ZONE_DEVICE page refcounting. Quoting Matthew Wilcox, "it removes a ton of cruft from every call to put_page()" This work was originally done by Ralph Campbell and submitted as RFC. As of today, it has been ack by Theodore Ts'o / Darrick J. Wong, and reviewed by Christoph Hellwig. https://lore.kernel.org/linux-mm/20201001181715.17416-1-rcampbell@nvidia.= com/ "MEMORY_DEVICE_COHERENT for CPU-accessible coherent device memory" patchset depends on this patchset. https://lore.kernel.org/linux-mm/20211012171247.2861-1-alex.sierra@amd.co= m/ Ralph Campbell (2): ext4/xfs: add page refcount helper mm: remove extra ZONE_DEVICE struct page refcount arch/powerpc/kvm/book3s_hv_uvmem.c | 2 +- drivers/gpu/drm/nouveau/nouveau_dmem.c | 2 +- fs/dax.c | 8 +-- fs/ext4/inode.c | 5 +- fs/fuse/dax.c | 4 +- fs/xfs/xfs_file.c | 4 +- include/linux/dax.h | 10 ++++ include/linux/memremap.h | 7 +-- include/linux/mm.h | 11 ---- lib/test_hmm.c | 2 +- mm/internal.h | 8 +++ mm/memcontrol.c | 6 +-- mm/memremap.c | 69 +++++++------------------- mm/migrate.c | 5 -- mm/page_alloc.c | 3 ++ mm/swap.c | 45 ++--------------- 16 files changed, 60 insertions(+), 131 deletions(-) --=20 2.32.0