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mm/page_alloc: add support for initializing pageblock as isolated

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MIGRATE_ISOLATE is a standalone bit, so a pageblock cannot be initialized
to just MIGRATE_ISOLATE.  Add init_pageblock_migratetype() to enable
initialize a pageblock with a migratetype and isolated.

Link: https://lkml.kernel.org/r/20250617021115.2331563-4-ziy@nvidia.com
Signed-off-by: Zi Yan <ziy@nvidia.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kirill A. Shuemov <kirill.shutemov@linux.intel.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Richard Chang <richardycc@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Zi Yan
2025-06-16 22:11:11 -04:00
committed by Andrew Morton
parent e904bce2d9
commit 1bc3587a88
9 changed files with 61 additions and 20 deletions
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4
mm/hugetlb.c
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@@ -3297,8 +3297,8 @@ static void __init hugetlb_bootmem_init_migratetype(struct folio *folio,
if (folio_test_hugetlb_cma(folio))
init_cma_pageblock(folio_page(folio, i));
else
set_pageblock_migratetype(folio_page(folio, i),
MIGRATE_MOVABLE);
init_pageblock_migratetype(folio_page(folio, i),
MIGRATE_MOVABLE, false);
}
}