From 01573e231f18eb2d99162747186f59511f56b64d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 08 Dec 2023 10:40:48 +0000
Subject: [PATCH] 移去rt
---
kernel/include/linux/page_ext.h | 43 +++++++++++++++++++++++++++++++++++--------
1 files changed, 35 insertions(+), 8 deletions(-)
diff --git a/kernel/include/linux/page_ext.h b/kernel/include/linux/page_ext.h
index f84f167..2daace4 100644
--- a/kernel/include/linux/page_ext.h
+++ b/kernel/include/linux/page_ext.h
@@ -17,9 +17,15 @@
#ifdef CONFIG_PAGE_EXTENSION
enum page_ext_flags {
- PAGE_EXT_DEBUG_GUARD,
PAGE_EXT_OWNER,
-#if defined(CONFIG_IDLE_PAGE_TRACKING) && !defined(CONFIG_64BIT)
+ PAGE_EXT_OWNER_ALLOCATED,
+#if defined(CONFIG_PAGE_PINNER)
+ /* page refcount was increased by GUP or follow_page(FOLL_GET) */
+ PAGE_EXT_GET,
+ /* page migration failed */
+ PAGE_EXT_PINNER_MIGRATION_FAILED,
+#endif
+#if defined(CONFIG_PAGE_IDLE_FLAG) && !defined(CONFIG_64BIT)
PAGE_EXT_YOUNG,
PAGE_EXT_IDLE,
#endif
@@ -36,6 +42,7 @@
unsigned long flags;
};
+extern unsigned long page_ext_size;
extern void pgdat_page_ext_init(struct pglist_data *pgdat);
#ifdef CONFIG_SPARSEMEM
@@ -43,14 +50,26 @@
{
}
extern void page_ext_init(void);
+static inline void page_ext_init_flatmem_late(void)
+{
+}
#else
extern void page_ext_init_flatmem(void);
+extern void page_ext_init_flatmem_late(void);
static inline void page_ext_init(void)
{
}
#endif
-
struct page_ext *lookup_page_ext(const struct page *page);
+extern struct page_ext *page_ext_get(struct page *page);
+extern void page_ext_put(struct page_ext *page_ext);
+
+static inline struct page_ext *page_ext_next(struct page_ext *curr)
+{
+ void *next = curr;
+ next += page_ext_size;
+ return next;
+}
#else /* !CONFIG_PAGE_EXTENSION */
struct page_ext;
@@ -59,17 +78,25 @@
{
}
-static inline struct page_ext *lookup_page_ext(const struct page *page)
-{
- return NULL;
-}
-
static inline void page_ext_init(void)
{
}
+static inline void page_ext_init_flatmem_late(void)
+{
+}
+
static inline void page_ext_init_flatmem(void)
{
}
+
+static inline struct page_ext *page_ext_get(struct page *page)
+{
+ return NULL;
+}
+
+static inline void page_ext_put(struct page_ext *page_ext)
+{
+}
#endif /* CONFIG_PAGE_EXTENSION */
#endif /* __LINUX_PAGE_EXT_H */
--
Gitblit v1.6.2