The patch titled
Subject: mm/page_isolation: prefer the node of the source page
has been added to the -mm tree. Its filename is
mm-page_isolation-prefer-the-node-of-the-source-page.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-page_isolation-prefer-the-node-of-the-source-page.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-page_isolation-prefer-the-node-of-the-source-page.patch
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------------------------------------------------------
From: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Subject: mm/page_isolation: prefer the node of the source page
Patch series "clean-up the migration target allocation functions", v3.
This patchset clean-up the migration target allocation functions.
Contributions of this patchset are:
1. unify two hugetlb alloc functions. As a result, one is remained.
2. make one external hugetlb alloc function to internal one.
3. unify three functions for migration target allocation.
This patch (of 8):
For locality, it's better to migrate the page to the same node rather than
the node of the current caller's cpu.
Link: http://lkml.kernel.org/r/1592892828-1934-1-git-send-email-iamjoonsoo.kim@xxxxxxx
Link: http://lkml.kernel.org/r/1592892828-1934-2-git-send-email-iamjoonsoo.kim@xxxxxxx
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Acked-by: Roman Gushchin <guro@xxxxxx>
Acked-by: Michal Hocko <mhocko@xxxxxxxx>
Reviewed-by: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Cc: Roman Gushchin <guro@xxxxxx>
Cc: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
Cc: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page_isolation.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/mm/page_isolation.c~mm-page_isolation-prefer-the-node-of-the-source-page
+++ a/mm/page_isolation.c
@@ -309,5 +309,7 @@ int test_pages_isolated(unsigned long st
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]);
}
_
Patches currently in -mm which might be from iamjoonsoo.kim@xxxxxxx are
mm-swap-fix-for-mm-workingset-age-nonresident-information-alongside-anonymous-pages.patch
mm-memory-fix-io-cost-for-anonymous-page.patch
mm-page_isolation-prefer-the-node-of-the-source-page.patch
mm-migrate-move-migration-helper-from-h-to-c.patch
mm-hugetlb-unify-migration-callbacks.patch
mm-hugetlb-make-hugetlb-migration-callback-cma-aware.patch
mm-migrate-make-a-standard-migration-target-allocation-function.patch
mm-gup-use-a-standard-migration-target-allocation-callback.patch
mm-mempolicy-use-a-standard-migration-target-allocation-callback.patch
mm-page_alloc-remove-a-wrapper-for-alloc_migration_target.patch
