patch-2.4.23 linux-2.4.23/include/linux/swap.h

• Lines: 68
• Date: 2003-11-28 10:26:21.000000000 -0800
• Orig file: linux-2.4.22/include/linux/swap.h
• Orig date: 2003-08-25 04:44:44.000000000 -0700

diff -urN linux-2.4.22/include/linux/swap.h linux-2.4.23/include/linux/swap.h
@@ -87,7 +87,7 @@
 extern unsigned int nr_free_buffer_pages(void);
 extern int nr_active_pages;
 extern int nr_inactive_pages;
-extern atomic_t page_cache_size;
+extern unsigned long page_cache_size;
 extern atomic_t buffermem_pages;
 
 extern spinlock_cacheline_t pagecache_lock_cacheline;
@@ -115,6 +115,7 @@
 extern wait_queue_head_t kswapd_wait;
 extern int FASTCALL(try_to_free_pages_zone(zone_t *, unsigned int));
 extern int FASTCALL(try_to_free_pages(unsigned int));
+extern int vm_vfs_scan_ratio, vm_cache_scan_ratio, vm_lru_balance_ratio, vm_passes, vm_gfp_debug, vm_mapped_ratio;
 
 /* linux/mm/page_io.c */
 extern void rw_swap_page(int, struct page *);
@@ -175,34 +176,46 @@
 		BUG();				\
 } while (0)
 
+extern void delta_nr_active_pages(struct page *page, long delta);
+#define inc_nr_active_pages(page) delta_nr_active_pages(page, 1)
+#define dec_nr_active_pages(page) delta_nr_active_pages(page, -1)
+
+extern void delta_nr_inactive_pages(struct page *page, long delta);
+#define inc_nr_inactive_pages(page) delta_nr_inactive_pages(page, 1)
+#define dec_nr_inactive_pages(page) delta_nr_inactive_pages(page, -1)
+
 #define add_page_to_active_list(page)		\
 do {						\
 	DEBUG_LRU_PAGE(page);			\
 	SetPageActive(page);			\
 	list_add(&(page)->lru, &active_list);	\
-	nr_active_pages++;			\
+	inc_nr_active_pages(page);		\
 } while (0)
 
 #define add_page_to_inactive_list(page)		\
 do {						\
 	DEBUG_LRU_PAGE(page);			\
 	list_add(&(page)->lru, &inactive_list);	\
-	nr_inactive_pages++;			\
+	inc_nr_inactive_pages(page);		\
 } while (0)
 
 #define del_page_from_active_list(page)		\
 do {						\
 	list_del(&(page)->lru);			\
 	ClearPageActive(page);			\
-	nr_active_pages--;			\
+	dec_nr_active_pages(page);		\
 } while (0)
 
 #define del_page_from_inactive_list(page)	\
 do {						\
 	list_del(&(page)->lru);			\
-	nr_inactive_pages--;			\
+	dec_nr_inactive_pages(page);		\
 } while (0)
 
+extern void delta_nr_cache_pages(struct page *page, long delta);
+#define inc_nr_cache_pages(page) delta_nr_cache_pages(page, 1)
+#define dec_nr_cache_pages(page) delta_nr_cache_pages(page, -1)
+
 extern spinlock_t swaplock;
 
 #define swap_list_lock()	spin_lock(&swaplock)