From: Shivank Garg <shivankg@amd.com>
To: <akpm@linux-foundation.org>, <david@kernel.org>
Cc: <lorenzo.stoakes@oracle.com>, <Liam.Howlett@oracle.com>,
<vbabka@kernel.org>, <willy@infradead.org>, <rppt@kernel.org>,
<surenb@google.com>, <mhocko@suse.com>, <ziy@nvidia.com>,
<matthew.brost@intel.com>, <joshua.hahnjy@gmail.com>,
<rakie.kim@sk.com>, <byungchul@sk.com>, <gourry@gourry.net>,
<ying.huang@linux.alibaba.com>, <apopple@nvidia.com>,
<dave@stgolabs.net>, <Jonathan.Cameron@huawei.com>,
<rkodsara@amd.com>, <vkoul@kernel.org>, <bharata@amd.com>,
<sj@kernel.org>, <weixugc@google.com>, <dan.j.williams@intel.com>,
<rientjes@google.com>, <xuezhengchu@huawei.com>,
<yiannis@zptcorp.com>, <dave.hansen@intel.com>,
<hannes@cmpxchg.org>, <jhubbard@nvidia.com>, <peterx@redhat.com>,
<riel@surriel.com>, <shakeel.butt@linux.dev>,
<stalexan@redhat.com>, <tj@kernel.org>, <nifan.cxl@gmail.com>,
<linux-kernel@vger.kernel.org>, <linux-mm@kvack.org>,
Shivank Garg <shivankg@amd.com>
Subject: [RFC PATCH v4 6/6] mm/migrate: adjust NR_MAX_BATCHED_MIGRATION for testing
Date: Mon, 9 Mar 2026 12:07:33 +0000 [thread overview]
Message-ID: <20260309120725.308854-16-shivankg@amd.com> (raw)
In-Reply-To: <20260309120725.308854-3-shivankg@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 acaaa9cc0d4f..8540e303190b 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -1606,7 +1606,7 @@ 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:[~2026-03-09 12:12 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-09 12:07 [RFC PATCH v4 0/6] Accelerate page migration with batch copying and hardware offload Shivank Garg
2026-03-09 12:07 ` [RFC PATCH v4 1/6] mm: introduce folios_mc_copy() for batch folio copying Shivank Garg
2026-03-12 9:41 ` David Hildenbrand (Arm)
2026-03-15 18:09 ` Garg, Shivank
2026-03-09 12:07 ` [RFC PATCH v4 2/6] mm/migrate: skip data copy for already-copied folios Shivank Garg
2026-03-12 9:44 ` David Hildenbrand (Arm)
2026-03-15 18:25 ` Garg, Shivank
2026-03-23 12:20 ` David Hildenbrand (Arm)
2026-03-24 8:22 ` Huang, Ying
2026-04-03 11:08 ` Garg, Shivank
2026-04-07 6:52 ` Huang, Ying
2026-03-09 12:07 ` [RFC PATCH v4 3/6] mm/migrate: add batch-copy path in migrate_pages_batch Shivank Garg
2026-03-24 8:42 ` Huang, Ying
2026-04-03 11:09 ` Garg, Shivank
2026-03-09 12:07 ` [RFC PATCH v4 4/6] mm/migrate: add copy offload registration infrastructure Shivank Garg
2026-03-09 17:54 ` Gregory Price
2026-03-10 10:07 ` Garg, Shivank
2026-03-24 10:54 ` Huang, Ying
2026-04-03 11:11 ` Garg, Shivank
2026-04-07 7:40 ` Huang, Ying
2026-03-09 12:07 ` [RFC PATCH v4 5/6] drivers/migrate_offload: add DMA batch copy driver (dcbm) Shivank Garg
2026-03-09 18:04 ` Gregory Price
2026-03-12 9:33 ` Garg, Shivank
2026-03-24 8:10 ` Huang, Ying
2026-04-03 11:06 ` Garg, Shivank
2026-03-09 12:07 ` Shivank Garg [this message]
2026-03-18 14:29 ` [RFC PATCH v4 0/6] Accelerate page migration with batch copying and hardware offload Garg, Shivank
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