X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=include%2Flinux%2Ffs.h;h=0cc34b1c42c9aa42b69365263d065578fc5282da;hb=a19cbd4bf258840ade3b6ee9e9256006d0644e09;hp=84bb449b9b01734dd864df59008724805de550af;hpb=63b3ced0f80ae1c437620d3f7d6ff2bcf0745b0a;p=karo-tx-linux.git

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 84bb449b9b01..0cc34b1c42c9 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -363,6 +363,8 @@ struct address_space_operations {
 			loff_t offset, unsigned long nr_segs);
 	struct page* (*get_xip_page)(struct address_space *, sector_t,
 			int);
+	/* migrate the contents of a page to the specified target */
+	int (*migratepage) (struct page *, struct page *);
 };
 
 struct backing_dev_info;
@@ -1416,9 +1418,6 @@ extern int is_bad_inode(struct inode *);
 extern struct file_operations read_fifo_fops;
 extern struct file_operations write_fifo_fops;
 extern struct file_operations rdwr_fifo_fops;
-extern struct file_operations read_pipe_fops;
-extern struct file_operations write_pipe_fops;
-extern struct file_operations rdwr_pipe_fops;
 
 extern int fs_may_remount_ro(struct super_block *);
 
@@ -1719,6 +1718,12 @@ extern void simple_release_fs(struct vfsmount **mount, int *count);
 
 extern ssize_t simple_read_from_buffer(void __user *, size_t, loff_t *, const void *, size_t);
 
+#ifdef CONFIG_MIGRATION
+extern int buffer_migrate_page(struct page *, struct page *);
+#else
+#define buffer_migrate_page NULL
+#endif
+
 extern int inode_change_ok(struct inode *, struct iattr *);
 extern int __must_check inode_setattr(struct inode *, struct iattr *);