From: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Date: Fri, 9 Aug 2024 11:48:54 +0000 (+0300)
Subject: mm: accept to promo watermark
X-Git-Tag: microblaze-v6.13~118^2~319
X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=59149bf8cea9e3b0e6368f68ae31bf91cdec1eb4;p=linux-2.6-microblaze.git

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 <kirill.shutemov@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: David Hildenbrand <david@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

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));