diff options
| author | Joonsoo Kim | 2020-08-11 18:37:11 -0700 |
|---|---|---|
| committer | Linus Torvalds | 2020-08-12 10:58:02 -0700 |
| commit | c7073bab5772e0e2ab2c766a05f68174974b1ab5 (patch) | |
| tree | a48a683d23fd3a1cc758cb6285dbf9f00db787fb /mm | |
| parent | ce14489c8e2d327b56ff3253a3642a6d79b9bca2 (diff) | |
mm/page_isolation: prefer the node of the source page
Patch series "clean-up the migration target allocation functions", v5.
This patch (of 9):
For locality, it's better to migrate the page to the same node rather than
the node of the current caller's cpu.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Roman Gushchin <guro@fb.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Link: http://lkml.kernel.org/r/1594622517-20681-1-git-send-email-iamjoonsoo.kim@lge.com
Link: http://lkml.kernel.org/r/1594622517-20681-2-git-send-email-iamjoonsoo.kim@lge.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/page_isolation.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/mm/page_isolation.c b/mm/page_isolation.c index f6d07c5f0d34..aec26d972b9f 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]); } |