From 59149bf8cea9e3b0e6368f68ae31bf91cdec1eb4 Mon Sep 17 00:00:00 2001 From: "Kirill A. Shutemov" Date: Fri, 9 Aug 2024 14:48:54 +0300 Subject: [PATCH] mm: accept to promo watermark Commit c574bbe91703 ("NUMA balancing: optimize page placement for memory tiering system") introduced a new watermark above "high" -- "promo". Accept memory memory to the highest watermark which is WMARK_PROMO now. Link: https://lkml.kernel.org/r/20240809114854.3745464-9-kirill.shutemov@linux.intel.com Signed-off-by: Kirill A. Shutemov Cc: Borislav Petkov Cc: David Hildenbrand Cc: Johannes Weiner Cc: Matthew Wilcox Cc: Mel Gorman Cc: Mike Rapoport (Microsoft) Cc: Tom Lendacky Cc: Vlastimil Babka Signed-off-by: Andrew Morton --- mm/page_alloc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 927f4e111273..56a93805561a 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -7001,8 +7001,8 @@ static bool cond_accept_memory(struct zone *zone, unsigned int order) if (list_empty(&zone->unaccepted_pages)) return false; - /* How much to accept to get to high watermark? */ - to_accept = high_wmark_pages(zone) - + /* How much to accept to get to promo watermark? */ + to_accept = promo_wmark_pages(zone) - (zone_page_state(zone, NR_FREE_PAGES) - __zone_watermark_unusable_free(zone, order, 0) - zone_page_state(zone, NR_UNACCEPTED)); -- 2.49.0