1 files changed, 7 insertions, 15 deletions

diff --git a/include/linux/swap.h b/include/linux/swap.h
index bfe3e763ccf2..3c9ff0048153 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -107,6 +107,8 @@ enum {
         SWP_USED        = (1 << 0),     /* is slot in swap_info[] used? */
         SWP_WRITEOK     = (1 << 1),     /* ok to write to this swap?    */
         SWP_ACTIVE      = (SWP_USED | SWP_WRITEOK),
+                                        /* add others here before... */
+        SWP_SCANNING    = (1 << 8),     /* refcount in scan_swap_map */
 };
 
 #define SWAP_CLUSTER_MAX 32
@@ -116,16 +118,13 @@ enum {
 
 /*
  * The in-memory structure used to track swap areas.
- * extent_list.prev points at the lowest-index extent.  That list is
- * sorted.
  */
 struct swap_info_struct {
         unsigned int flags;
-        spinlock_t sdev_lock;
+        int prio;                       /* swap priority */
         struct file *swap_file;
         struct block_device *bdev;
         struct list_head extent_list;
-        int nr_extents;
         struct swap_extent *curr_swap_extent;
         unsigned old_block_size;
         unsigned short * swap_map;
@@ -133,10 +132,9 @@ struct swap_info_struct {
         unsigned int highest_bit;
         unsigned int cluster_next;
         unsigned int cluster_nr;
-        int prio;                       /* swap priority */
-        int pages;
-        unsigned long max;
-        unsigned long inuse_pages;
+        unsigned int pages;
+        unsigned int max;
+        unsigned int inuse_pages;
         int next;                       /* next entry on swap list */
 };
 
@@ -222,13 +220,7 @@ extern int can_share_swap_page(struct page *);
 extern int remove_exclusive_swap_page(struct page *);
 struct backing_dev_info;
 
-extern struct swap_list_t swap_list;
-extern spinlock_t swaplock;
-
-#define swap_list_lock()        spin_lock(&swaplock)
-#define swap_list_unlock()      spin_unlock(&swaplock)
-#define swap_device_lock(p)     spin_lock(&p->sdev_lock)
-#define swap_device_unlock(p)   spin_unlock(&p->sdev_lock)
+extern spinlock_t swap_lock;
 
 /* linux/mm/thrash.c */
 extern struct mm_struct * swap_token_mm;