From: js1304@gmail.com
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
kernel-team@lge.com, Vlastimil Babka <vbabka@suse.cz>,
Christoph Hellwig <hch@infradead.org>,
Roman Gushchin <guro@fb.com>,
Mike Kravetz <mike.kravetz@oracle.com>,
Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
Michal Hocko <mhocko@suse.com>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>
Subject: [PATCH v5 1/9] mm/page_isolation: prefer the node of the source page
Date: Mon, 13 Jul 2020 15:41:49 +0900 [thread overview]
Message-ID: <1594622517-20681-2-git-send-email-iamjoonsoo.kim@lge.com> (raw)
In-Reply-To: <1594622517-20681-1-git-send-email-iamjoonsoo.kim@lge.com>
From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
For locality, it's better to migrate the page to the same node rather than
the node of the current caller's cpu.
Acked-by: Roman Gushchin <guro@fb.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
---
mm/page_isolation.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/mm/page_isolation.c b/mm/page_isolation.c
index f6d07c5..aec26d9 100644
--- a/mm/page_isolation.c
+++ b/mm/page_isolation.c
@@ -309,5 +309,7 @@ int test_pages_isolated(unsigned long start_pfn, unsigned long end_pfn,
struct page *alloc_migrate_target(struct page *page, unsigned long private)
{
- return new_page_nodemask(page, numa_node_id(), &node_states[N_MEMORY]);
+ int nid = page_to_nid(page);
+
+ return new_page_nodemask(page, nid, &node_states[N_MEMORY]);
}
--
2.7.4
next prev parent reply other threads:[~2020-07-13 6:42 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-13 6:41 [PATCH v5 0/9] clean-up the migration target allocation functions js1304
2020-07-13 6:41 ` js1304 [this message]
2020-07-13 6:41 ` [PATCH v5 2/9] mm/migrate: move migration helper from .h to .c js1304
2020-07-13 6:41 ` [PATCH v5 3/9] mm/hugetlb: unify migration callbacks js1304
2020-07-13 6:41 ` [PATCH v5 4/9] mm/migrate: clear __GFP_RECLAIM to make the migration callback consistent with regular THP allocations js1304
2020-07-13 7:36 ` Michal Hocko
2020-07-13 7:52 ` Vlastimil Babka
2020-07-14 0:44 ` Joonsoo Kim
2020-07-13 6:41 ` [PATCH v5 5/9] mm/migrate: make a standard migration target allocation function js1304
2020-07-13 7:53 ` Vlastimil Babka
2020-07-14 0:46 ` Joonsoo Kim
2020-07-13 6:41 ` [PATCH v5 6/9] mm/mempolicy: use a standard migration target allocation callback js1304
2020-07-13 6:41 ` [PATCH v5 7/9] mm/page_alloc: remove a wrapper for alloc_migration_target() js1304
2020-07-13 6:41 ` [PATCH v5 8/9] mm/memory-failure: " js1304
2020-07-13 6:41 ` [PATCH v5 9/9] mm/memory_hotplug: " js1304
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