From: Shivank Garg <shivankg@amd.com>
To: Andrew Morton <akpm@linux-foundation.org>,
David Hildenbrand <david@kernel.org>, Zi Yan <ziy@nvidia.com>,
Matthew Brost <matthew.brost@intel.com>,
Joshua Hahn <joshua.hahnjy@gmail.com>,
Rakie Kim <rakie.kim@sk.com>, Byungchul Park <byungchul@sk.com>,
Gregory Price <gourry@gourry.net>,
Ying Huang <ying.huang@linux.alibaba.com>,
"Alistair Popple" <apopple@nvidia.com>,
Lorenzo Stoakes <ljs@kernel.org>,
"Liam R. Howlett" <liam@infradead.org>,
Vlastimil Babka <vbabka@kernel.org>,
"Mike Rapoport" <rppt@kernel.org>,
Suren Baghdasaryan <surenb@google.com>,
"Michal Hocko" <mhocko@suse.com>
Cc: Karim Manaouil <kmanaouil.dev@gmail.com>,
Frank van der Linden <fvdl@google.com>,
Teja Vojjala <tejavojjala@google.com>,
Pravin Tamkhane <pravintamkhane@google.com>,
Kinsey Ho <kinseyho@google.com>, Wei Xu <weixugc@google.com>,
Matthew Wilcox <willy@infradead.org>,
Davidlohr Bueso <dave@stgolabs.net>,
Vinod Koul <vkoul@kernel.org>, Bharata B Rao <bharata@amd.com>,
SeongJae Park <sj@kernel.org>,
David Rientjes <rientjes@google.com>,
Xuezheng Chu <xuezhengchu@huawei.com>,
"Yiannis Nikolakopoulos" <yiannis@zptcorp.com>,
Dave Hansen <dave.hansen@intel.com>,
Johannes Weiner <hannes@cmpxchg.org>,
John Hubbard <jhubbard@nvidia.com>, Peter Xu <peterx@redhat.com>,
Rik van Riel <riel@surriel.com>,
Shakeel Butt <shakeel.butt@linux.dev>, Tejun Heo <tj@kernel.org>,
Fan Ni <nifan.cxl@gmail.com>, Jonathan Cameron <jic23@kernel.org>,
Aneesh Kumar K.V <aneesh.kumar@kernel.org>,
Nathan Lynch <nathan.lynch@amd.com>, Frank Li <Frank.li@nxp.com>,
Dan Williams <djbw@kernel.org>, <linux-mm@kvack.org>,
<linux-kernel@vger.kernel.org>, Shivank Garg <shivankg@amd.com>
Subject: [PATCH RFC v6 5/5] mm/migrate: adjust NR_MAX_BATCHED_MIGRATION for testing
Date: Tue, 30 Jun 2026 07:28:41 +0000 [thread overview]
Message-ID: <20260630-shivank-batch-migrate-offload-v6-5-da95d7e8b8a2@amd.com> (raw)
In-Reply-To: <20260630-shivank-batch-migrate-offload-v6-0-da95d7e8b8a2@amd.com>
From: Zi Yan <ziy@nvidia.com>
Change NR_MAX_BATCHED_MIGRATION to HPAGE_PUD_NR to allow batching THP
copies.
These are for testing purpose only.
Signed-off-by: Zi Yan <ziy@nvidia.com>
Signed-off-by: Shivank Garg <shivankg@amd.com>
---
mm/migrate.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/migrate.c b/mm/migrate.c
index 4fed3110ca0a..4be1f3dc1603 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -1592,7 +1592,7 @@ static inline int try_split_folio(struct folio *folio, struct list_head *split_f
}
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
-#define NR_MAX_BATCHED_MIGRATION HPAGE_PMD_NR
+#define NR_MAX_BATCHED_MIGRATION HPAGE_PUD_NR
#else
#define NR_MAX_BATCHED_MIGRATION 512
#endif
--
2.43.0
next prev parent reply other threads:[~2026-06-30 7:29 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-30 7:28 [PATCH RFC v6 0/5] Accelerate page migration with batch copying and hardware offload Shivank Garg
2026-06-30 7:28 ` [PATCH RFC v6 1/5] mm/migrate: skip data copy for already-copied folios Shivank Garg
2026-06-30 7:28 ` [PATCH RFC v6 2/5] mm/migrate: add batch-copy path in migrate_pages_batch Shivank Garg
2026-06-30 7:28 ` [PATCH RFC v6 3/5] mm/migrate: add copy offload registration infrastructure Shivank Garg
2026-07-20 11:19 ` Huang, Ying
2026-07-20 14:44 ` Zi Yan
2026-07-20 15:32 ` Garg, Shivank
2026-07-20 15:45 ` Zi Yan
2026-07-21 11:32 ` Huang, Ying
2026-06-30 7:28 ` [PATCH RFC v6 4/5] drivers/migrate_offload: add DMA batch copy driver (dcbm) Shivank Garg
2026-06-30 7:28 ` Shivank Garg [this message]
2026-07-14 11:29 ` [PATCH RFC v6 0/5] Accelerate page migration with batch copying and hardware offload Huang, Ying
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