* [PATCH] thp: Remove HPAGE_PMD_ORDER minimum assertion
@ 2024-04-29 19:00 Matthew Wilcox (Oracle)
0 siblings, 0 replies; only message in thread
From: Matthew Wilcox (Oracle) @ 2024-04-29 19:00 UTC (permalink / raw)
To: Andrew Morton, linux-mm; +Cc: Matthew Wilcox (Oracle)
We now handle order-1 folios correctly, so we don't need this
assertion any more.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
---
mm/huge_memory.c | 5 -----
1 file changed, 5 deletions(-)
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 19000fc2c43c..8b75809aca24 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -740,11 +740,6 @@ static int __init hugepage_init(void)
* hugepages can't be allocated by the buddy allocator
*/
MAYBE_BUILD_BUG_ON(HPAGE_PMD_ORDER > MAX_PAGE_ORDER);
- /*
- * we use page->mapping and page->index in second tail page
- * as list_head: assuming THP order >= 2
- */
- MAYBE_BUILD_BUG_ON(HPAGE_PMD_ORDER < 2);
err = hugepage_init_sysfs(&hugepage_kobj);
if (err)
--
2.43.0
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2024-04-29 19:00 [PATCH] thp: Remove HPAGE_PMD_ORDER minimum assertion Matthew Wilcox (Oracle)
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