dump_page_owner() only uses struct page to find the page_ext, and
lookup_page_ext() already takes a const argument.
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Reviewed-by: William Kucharski <william.kucharski@xxxxxxxxxx>
Reviewed-by: Vlastimil Babka <vbabka@xxxxxxx>
Reviewed-by: Anshuman Khandual <anshuman.khandual@xxxxxxx>
---
include/linux/page_owner.h | 6 +++---
mm/page_owner.c | 2 +-
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/include/linux/page_owner.h b/include/linux/page_owner.h
index 3468794f83d2..719bfe5108c5 100644
--- a/include/linux/page_owner.h
+++ b/include/linux/page_owner.h
@@ -14,7 +14,7 @@ extern void __set_page_owner(struct page *page,
extern void __split_page_owner(struct page *page, unsigned int nr);
extern void __copy_page_owner(struct page *oldpage, struct page *newpage);
extern void __set_page_owner_migrate_reason(struct page *page, int reason);
-extern void __dump_page_owner(struct page *page);
+extern void __dump_page_owner(const struct page *page);
extern void pagetypeinfo_showmixedcount_print(struct seq_file *m,
pg_data_t *pgdat, struct zone *zone);
@@ -46,7 +46,7 @@ static inline void set_page_owner_migrate_reason(struct page *page, int reason)
if (static_branch_unlikely(&page_owner_inited))
__set_page_owner_migrate_reason(page, reason);
}
-static inline void dump_page_owner(struct page *page)
+static inline void dump_page_owner(const struct page *page)
{
if (static_branch_unlikely(&page_owner_inited))
__dump_page_owner(page);
@@ -69,7 +69,7 @@ static inline void copy_page_owner(struct page *oldpage, struct page *newpage)
static inline void set_page_owner_migrate_reason(struct page *page, int reason)
{
}
-static inline void dump_page_owner(struct page *page)
+static inline void dump_page_owner(const struct page *page)
{
}
#endif /* CONFIG_PAGE_OWNER */
diff --git a/mm/page_owner.c b/mm/page_owner.c
index adfabb560eb9..f51a57e92aa3 100644
--- a/mm/page_owner.c
+++ b/mm/page_owner.c
@@ -392,7 +392,7 @@ print_page_owner(char __user *buf, size_t count, unsigned long pfn,
return -ENOMEM;
}
-void __dump_page_owner(struct page *page)
+void __dump_page_owner(const struct page *page)
{
struct page_ext *page_ext = lookup_page_ext(page);
struct page_owner *page_owner;
--
2.30.2
