diff mbox series

[v2,09/16] mm/page_alloc: Move set_page_refcounted() to callers of __alloc_pages_direct_compact()

Message ID 20220809171854.3725722-10-willy@infradead.org (mailing list archive)
State New
Headers show
Series Allocate and free frozen pages | expand

Commit Message

Matthew Wilcox Aug. 9, 2022, 5:18 p.m. UTC 
In preparation for allocating frozen pages, stop initialising the page
refcount in __alloc_pages_direct_compact().

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
---
 mm/page_alloc.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 8222cc6ce7dd..555409f04d49 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4513,7 +4513,6 @@  __alloc_pages_direct_compact(gfp_t gfp_mask, unsigned int order,
 	if (page) {
 		struct zone *zone = page_zone(page);
 
-		set_page_refcounted(page);
 		zone->compact_blockskip_flush = false;
 		compaction_defer_reset(zone, order, true);
 		count_vm_event(COMPACTSUCCESS);
@@ -5079,8 +5078,10 @@  __alloc_pages_slowpath(gfp_t gfp_mask, unsigned int order,
 						alloc_flags, ac,
 						INIT_COMPACT_PRIORITY,
 						&compact_result);
-		if (page)
+		if (page) {
+			set_page_refcounted(page);
 			goto got_pg;
+		}
 
 		/*
 		 * Checks for costly allocations with __GFP_NORETRY, which
@@ -5161,8 +5162,10 @@  __alloc_pages_slowpath(gfp_t gfp_mask, unsigned int order,
 	/* Try direct compaction and then allocating */
 	page = __alloc_pages_direct_compact(gfp_mask, order, alloc_flags, ac,
 					compact_priority, &compact_result);
-	if (page)
+	if (page) {
+		set_page_refcounted(page);
 		goto got_pg;
+	}
 
 	/* Do not loop if specifically requested */
 	if (gfp_mask & __GFP_NORETRY)