Messages in this thread Patch in this message | | | From | "Kirill A. Shutemov" <> | Subject | [PATCH 07/10] mm/page_reporting: Fix MAX_ORDER usage in page_reporting_register() | Date | Wed, 15 Mar 2023 14:31:30 +0300 |
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MAX_ORDER is not inclusive: the maximum allocation order buddy allocator can deliver is MAX_ORDER-1.
Fix MAX_ORDER usage in page_reporting_register().
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Alexander Duyck <alexander.h.duyck@linux.intel.com> --- mm/page_reporting.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/page_reporting.c b/mm/page_reporting.c index c65813a9dc78..275b466de37b 100644 --- a/mm/page_reporting.c +++ b/mm/page_reporting.c @@ -370,7 +370,7 @@ int page_reporting_register(struct page_reporting_dev_info *prdev) */ if (page_reporting_order == -1) { - if (prdev->order > 0 && prdev->order <= MAX_ORDER) + if (prdev->order > 0 && prdev->order < MAX_ORDER) page_reporting_order = prdev->order; else page_reporting_order = pageblock_order; -- 2.39.2
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