summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--include/linux/page_ext.h4
-rw-r--r--include/linux/pgalloc_tag.h2
-rw-r--r--mm/page_ext.c2
3 files changed, 3 insertions, 5 deletions
diff --git a/include/linux/page_ext.h b/include/linux/page_ext.h
index 07e0656898f9..e4b48a0dda24 100644
--- a/include/linux/page_ext.h
+++ b/include/linux/page_ext.h
@@ -77,7 +77,7 @@ static inline void page_ext_init(void)
}
#endif
-extern struct page_ext *page_ext_get(struct page *page);
+extern struct page_ext *page_ext_get(const struct page *page);
extern void page_ext_put(struct page_ext *page_ext);
static inline void *page_ext_data(struct page_ext *page_ext,
@@ -117,7 +117,7 @@ static inline void page_ext_init_flatmem(void)
{
}
-static inline struct page_ext *page_ext_get(struct page *page)
+static inline struct page_ext *page_ext_get(const struct page *page)
{
return NULL;
}
diff --git a/include/linux/pgalloc_tag.h b/include/linux/pgalloc_tag.h
index 62d8dad74b37..86ba5d33e43b 100644
--- a/include/linux/pgalloc_tag.h
+++ b/include/linux/pgalloc_tag.h
@@ -12,8 +12,6 @@
#include <linux/page_ext.h>
extern struct page_ext_operations page_alloc_tagging_ops;
-extern struct page_ext *page_ext_get(struct page *page);
-extern void page_ext_put(struct page_ext *page_ext);
static inline union codetag_ref *codetag_ref_from_page_ext(struct page_ext *page_ext)
{
diff --git a/mm/page_ext.c b/mm/page_ext.c
index e7d8f1a5589e..95dd8ffeaf81 100644
--- a/mm/page_ext.c
+++ b/mm/page_ext.c
@@ -514,7 +514,7 @@ void __meminit pgdat_page_ext_init(struct pglist_data *pgdat)
* Context: Any context. Caller may not sleep until they have called
* page_ext_put().
*/
-struct page_ext *page_ext_get(struct page *page)
+struct page_ext *page_ext_get(const struct page *page)
{
struct page_ext *page_ext;