linux-kernel - [PATCH RFC V2 8/9] adjust NR_MAX_BATCHED

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250319192211.10092-9-shivankg@amd.com>
Date: Wed, 19 Mar 2025 19:22:11 +0000
From: Shivank Garg <shivankg@....com>
To: <akpm@...ux-foundation.org>, <linux-mm@...ck.org>, <ziy@...dia.com>
CC: <AneeshKumar.KizhakeVeetil@....com>, <baolin.wang@...ux.alibaba.com>,
	<bharata@....com>, <david@...hat.com>, <gregory.price@...verge.com>,
	<honggyu.kim@...com>, <jane.chu@...cle.com>, <jhubbard@...dia.com>,
	<jon.grimm@....com>, <k.shutemov@...il.com>, <leesuyeon0506@...il.com>,
	<leillc@...gle.com>, <liam.howlett@...cle.com>,
	<linux-kernel@...r.kernel.org>, <mel.gorman@...il.com>,
	<Michael.Day@....com>, <Raghavendra.KodsaraThimmappa@....com>,
	<riel@...riel.com>, <rientjes@...gle.com>, <santosh.shukla@....com>,
	<shivankg@....com>, <shy828301@...il.com>, <sj@...nel.org>,
	<wangkefeng.wang@...wei.com>, <weixugc@...gle.com>, <willy@...radead.org>,
	<ying.huang@...ux.alibaba.com>, <anannara@....com>, <wei.huang2@....com>,
	<Jonathan.Cameron@...wei.com>, <hyeonggon.yoo@...com>, <byungchul@...com>
Subject: [PATCH RFC V2 8/9] adjust NR_MAX_BATCHED_MIGRATION for testing

From: Zi Yan <ziy@...dia.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@...dia.com>
Signed-off-by: Shivank Garg <shivankg@....com>
---
 mm/migrate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/migrate.c b/mm/migrate.c
index e74dbc7a4758..f9eea16a975d 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -1653,7 +1653,7 @@ 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
-- 
2.34.1