1 files changed, 8 insertions, 0 deletions

diff --git a/include/linux/fs.h b/include/linux/fs.h
index b178f9e91e23..d7eed5b98ae2 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -165,6 +165,8 @@ struct inodes_stat_t {
 #define READ                    0
 #define WRITE                   RW_MASK
 #define READA                   RWA_MASK
+#define KERNEL_READ             (READ|REQ_KERNEL)
+#define KERNEL_WRITE            (WRITE|REQ_KERNEL)
 
 #define READ_SYNC               (READ | REQ_SYNC)
 #define WRITE_SYNC              (WRITE | REQ_SYNC | REQ_NOIDLE)
@@ -427,6 +429,7 @@ struct kstatfs;
 struct vm_area_struct;
 struct vfsmount;
 struct cred;
+struct swap_info_struct;
 
 extern void __init inode_init(void);
 extern void __init inode_init_early(void);
@@ -636,6 +639,11 @@ struct address_space_operations {
         int (*is_partially_uptodate) (struct page *, read_descriptor_t *,
                                         unsigned long);
         int (*error_remove_page)(struct address_space *, struct page *);
+
+        /* swapfile support */
+        int (*swap_activate)(struct swap_info_struct *sis, struct file *file,
+                                sector_t *span);
+        void (*swap_deactivate)(struct file *file);
 };
 
 extern const struct address_space_operations empty_aops;