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Message-ID: <20240805145940.2911011-9-kirill.shutemov@linux.intel.com>
Date: Mon, 5 Aug 2024 17:59:40 +0300
From: "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
To: Andrew Morton <akpm@...ux-foundation.org>,
"Borislav Petkov (AMD)" <bp@...en8.de>,
Mel Gorman <mgorman@...e.de>,
Vlastimil Babka <vbabka@...e.cz>
Cc: Tom Lendacky <thomas.lendacky@....com>,
Mike Rapoport <rppt@...nel.org>,
"Matthew Wilcox (Oracle)" <willy@...radead.org>,
David Hildenbrand <david@...hat.com>,
Johannes Weiner <hannes@...xchg.org>,
linux-mm@...ck.org,
linux-kernel@...r.kernel.org,
"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
Subject: [PATCH 8/8] 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.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>
---
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 5f33e92b0a55..fcb15d0e7549 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -7019,8 +7019,8 @@ 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));
--
2.43.0
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