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authorMiaohe Lin <linmiaohe@huawei.com>2022-09-16 10:22:43 +0300
committerAndrew Morton <akpm@linux-foundation.org>2022-10-04 00:03:28 +0300
commitb89f1735169b8ab54b6a03bf4823657ee4e30073 (patch)
treeee6f725633b012ea1648e129a49711de6b6ce82a
parentce96fa6223ee851cb83118678f6e75f260852a80 (diff)
downloadlinux-b89f1735169b8ab54b6a03bf4823657ee4e30073.tar.xz
mm/page_alloc: make zone_pcp_update() static
Since commit b92ca18e8ca5 ("mm/page_alloc: disassociate the pcp->high from pcp->batch"), zone_pcp_update() is only used in mm/page_alloc.c. Move zone_pcp_update() up to avoid forward declaration and then make it static. No functional change intended. Link: https://lkml.kernel.org/r/20220916072257.9639-3-linmiaohe@huawei.com Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com> Reviewed-by: Oscar Salvador <osalvador@suse.de> Cc: Matthew Wilcox <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
-rw-r--r--mm/internal.h1
-rw-r--r--mm/page_alloc.c22
2 files changed, 11 insertions, 12 deletions
diff --git a/mm/internal.h b/mm/internal.h
index fea3cba15484..f46cd8a6694a 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -367,7 +367,6 @@ extern int user_min_free_kbytes;
extern void free_unref_page(struct page *page, unsigned int order);
extern void free_unref_page_list(struct list_head *list);
-extern void zone_pcp_update(struct zone *zone, int cpu_online);
extern void zone_pcp_reset(struct zone *zone);
extern void zone_pcp_disable(struct zone *zone);
extern void zone_pcp_enable(struct zone *zone);
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 24caa11db8ae..49efaf9963d1 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -7243,6 +7243,17 @@ void __meminit setup_zone_pageset(struct zone *zone)
}
/*
+ * The zone indicated has a new number of managed_pages; batch sizes and percpu
+ * page high values need to be recalculated.
+ */
+static void zone_pcp_update(struct zone *zone, int cpu_online)
+{
+ mutex_lock(&pcp_batch_high_lock);
+ zone_set_pageset_high_and_batch(zone, cpu_online);
+ mutex_unlock(&pcp_batch_high_lock);
+}
+
+/*
* Allocate per cpu pagesets and initialize them.
* Before this call only boot pagesets were available.
*/
@@ -9474,17 +9485,6 @@ void free_contig_range(unsigned long pfn, unsigned long nr_pages)
EXPORT_SYMBOL(free_contig_range);
/*
- * The zone indicated has a new number of managed_pages; batch sizes and percpu
- * page high values need to be recalculated.
- */
-void zone_pcp_update(struct zone *zone, int cpu_online)
-{
- mutex_lock(&pcp_batch_high_lock);
- zone_set_pageset_high_and_batch(zone, cpu_online);
- mutex_unlock(&pcp_batch_high_lock);
-}
-
-/*
* Effectively disable pcplists for the zone by setting the high limit to 0
* and draining all cpus. A concurrent page freeing on another CPU that's about
* to put the page on pcplist will either finish before the drain and the page