The patch titled
Subject: mm, mempolicy: migrate_to_node should only migrate to node
has been removed from the -mm tree. Its filename was
mm-mempolicy-migrate_to_node-should-only-migrate-to-node.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: David Rientjes <rientjes@xxxxxxxxxx>
Subject: mm, mempolicy: migrate_to_node should only migrate to node
migrate_to_node() is intended to migrate a page from one source node to a
target node.
Today, migrate_to_node() could end up migrating to any node, not only the
target node. This is because the page migration allocator,
new_node_page() does not pass __GFP_THISNODE to alloc_pages_exact_node().
This causes the target node to be preferred but allows fallback to any
other node in order of affinity.
Prevent this by allocating with __GFP_THISNODE. If memory is not
available, -ENOMEM will be returned as appropriate.
Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx>
Reviewed-by: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
Cc: Mel Gorman <mel@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/mempolicy.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff -puN mm/mempolicy.c~mm-mempolicy-migrate_to_node-should-only-migrate-to-node mm/mempolicy.c
--- a/mm/mempolicy.c~mm-mempolicy-migrate_to_node-should-only-migrate-to-node
+++ a/mm/mempolicy.c
@@ -945,7 +945,8 @@ static struct page *new_node_page(struct
return alloc_huge_page_node(page_hstate(compound_head(page)),
node);
else
- return alloc_pages_exact_node(node, GFP_HIGHUSER_MOVABLE, 0);
+ return alloc_pages_exact_node(node, GFP_HIGHUSER_MOVABLE |
+ __GFP_THISNODE, 0);
}
/*
_
Patches currently in -mm which might be from rientjes@xxxxxxxxxx are
origin.patch
mm-mempool-do-not-allow-atomic-resizing.patch
mm-hugetlb-abort-__get_user_pages-if-current-has-been-oom-killed.patch
cxgb4-drop-__gfp_nofail-allocation.patch
jbd2-revert-must-not-fail-allocation-loops-back-to-gfp_nofail.patch
slab-infrastructure-for-bulk-object-allocation-and-freeing-v3.patch
slub-bulk-alloc-extract-objects-from-the-per-cpu-slab.patch
slub-bulk-allocation-from-per-cpu-partial-pages.patch
slub-bulk-allocation-from-per-cpu-partial-pages-fix.patch
mm-refactor-zone_movable_is_highmem.patch
mm-memory-failurec-define-page-types-for-action_result-in-one-place.patch
page-flags-define-behavior-slb-related-flags-on-compound-pages.patch
allow-compaction-of-unevictable-pages.patch
document-interaction-between-compaction-and-the-unevictable-lru.patch
document-interaction-between-compaction-and-the-unevictable-lru-fix.patch
mm-memcg-sync-allocation-and-memcg-charge-gfp-flags-for-thp.patch
mm-memcg-sync-allocation-and-memcg-charge-gfp-flags-for-thp-fix-fix.patch
mm-compaction-reset-compaction-scanner-positions.patch
hugetlbfs-add-minimum-size-tracking-fields-to-subpool-structure.patch
hugetlbfs-add-minimum-size-accounting-to-subpools.patch
hugetlbfs-accept-subpool-min_size-mount-option-and-setup-accordingly.patch
hugetlbfs-document-min_size-mount-option-and-cleanup.patch
mm-vmalloc-fix-possible-exhaustion-of-vmalloc-space-caused-by-vm_map_ram-allocator.patch
mm-vmalloc-occupy-newly-allocated-vmap-block-just-after-allocation.patch
mm-vmalloc-get-rid-of-dirty-bitmap-inside-vmap_block-structure.patch
mremap-should-return-enomem-when-__vm_enough_memory-fail.patch
clean-up-goto-just-return-err_ptr.patch
fs-jfs-remove-slab-object-constructor.patch
mm-mempool-disallow-mempools-based-on-slab-caches-with-constructors.patch
mm-mempool-poison-elements-backed-by-slab-allocator.patch
mm-mempool-poison-elements-backed-by-page-allocator.patch
mm-mempool-poison-elements-backed-by-page-allocator-fix.patch
mm-mempool-poison-elements-backed-by-page-allocator-fix-fix.patch
mm-mempool-poison-elements-backed-by-page-allocator-fix-fix-fix.patch
thp-handle-errors-in-hugepage_init-properly.patch
thp-do-not-adjust-zone-water-marks-if-khugepaged-is-not-started.patch
mm-doc-cleanup-and-clarify-munmap-behavior-for-hugetlb-memory.patch
mm-doc-cleanup-and-clarify-munmap-behavior-for-hugetlb-memory-fix.patch
mm-selftests-test-return-value-of-munmap-for-map_hugetlb-memory.patch
mm-dont-call-__page_cache_release-for-hugetlb.patch
mm-hugetlb-introduce-pagehugeactive-flag.patch
mm-hugetlb-introduce-pagehugeactive-flag-fix.patch
mm-hugetlb-cleanup-using-pagehugeactive-flag.patch
mm-hugetlb-cleanup-using-pagehugeactive-flag-fix.patch
thp-cleanup-khugepaged-startup.patch
mm-mempool-kasan-poison-mempool-elements.patch
hung_task-change-hung_taskc-to-use-for_each_process_thread.patch
mm-utilc-add-kstrimdup.patch
linux-next.patch
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