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From: Shivank Garg <shivankg@amd.com>
To: <akpm@linux-foundation.org>, <david@redhat.com>
Cc: <ziy@nvidia.com>, <willy@infradead.org>,
	<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>,
	<lorenzo.stoakes@oracle.com>, <Liam.Howlett@oracle.com>,
	<vbabka@suse.cz>, <rppt@kernel.org>, <surenb@google.com>,
	<mhocko@suse.com>, <vkoul@kernel.org>, <lucas.demarchi@intel.com>,
	<rdunlap@infradead.org>, <jgg@ziepe.ca>, <kuba@kernel.org>,
	<justonli@chromium.org>, <ivecera@redhat.com>,
	<dave.jiang@intel.com>, <Jonathan.Cameron@huawei.com>,
	<dan.j.williams@intel.com>, <rientjes@google.com>,
	<Raghavendra.KodsaraThimmappa@amd.com>, <bharata@amd.com>,
	<shivankg@amd.com>, <alirad.malek@zptcorp.com>,
	<yiannis@zptcorp.com>, <weixugc@google.com>,
	<linux-kernel@vger.kernel.org>, <linux-mm@kvack.org>
Subject: [RFC V3 8/9] adjust NR_MAX_BATCHED_MIGRATION for testing
Date: Tue, 23 Sep 2025 17:47:43 +0000	[thread overview]
Message-ID: <20250923174752.35701-9-shivankg@amd.com> (raw)
In-Reply-To: <20250923174752.35701-1-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 41bea48d823c..7f50813d87e4 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -1668,7 +1668,7 @@ 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



  parent reply	other threads:[~2025-09-23 17:49 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-09-23 17:47 [RFC V3 0/9] Accelerate page migration with batch copying and hardware offload Shivank Garg
2025-09-23 17:47 ` [RFC V3 1/9] mm/migrate: factor out code in move_to_new_folio() and migrate_folio_move() Shivank Garg
2025-10-02 10:30   ` Jonathan Cameron
2025-09-23 17:47 ` [RFC V3 2/9] mm/migrate: revive MIGRATE_NO_COPY in migrate_mode Shivank Garg
2025-09-23 17:47 ` [RFC V3 3/9] mm: Introduce folios_mc_copy() for batch copying folios Shivank Garg
2025-09-23 17:47 ` [RFC V3 4/9] mm/migrate: add migrate_folios_batch_move to batch the folio move operations Shivank Garg
2025-10-02 11:03   ` Jonathan Cameron
2025-10-16  9:17     ` Garg, Shivank
2025-09-23 17:47 ` [RFC V3 5/9] mm: add support for copy offload for folio Migration Shivank Garg
2025-10-02 11:10   ` Jonathan Cameron
2025-10-16  9:40     ` Garg, Shivank
2025-09-23 17:47 ` [RFC V3 6/9] mtcopy: introduce multi-threaded page copy routine Shivank Garg
2025-10-02 11:29   ` Jonathan Cameron
2025-10-20  8:28   ` Byungchul Park
2025-11-06  6:27     ` Garg, Shivank
2025-11-12  2:12       ` Byungchul Park
2025-09-23 17:47 ` [RFC V3 7/9] dcbm: add dma core batch migrator for batch page offloading Shivank Garg
2025-10-02 11:38   ` Jonathan Cameron
2025-10-16  9:59     ` Garg, Shivank
2025-09-23 17:47 ` Shivank Garg [this message]
2025-09-23 17:47 ` [RFC V3 9/9] mtcopy: spread threads across die for testing Shivank Garg
2025-09-24  1:49 ` [RFC V3 0/9] Accelerate page migration with batch copying and hardware offload Huang, Ying
2025-09-24  2:03   ` Zi Yan
2025-09-24  3:11     ` Huang, Ying
2025-09-24  3:22 ` Zi Yan
2025-10-02 17:10   ` Garg, Shivank

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