1 files changed, 11 insertions, 3 deletions

diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h
index 25311b3bedf..d378f08b905 100644
--- a/include/linux/nfs_page.h
+++ b/include/linux/nfs_page.h
@@ -55,6 +55,12 @@ struct nfs_page {
         struct nfs_writeverf    wb_verf;        /* Commit cookie */
 };
 
+struct nfs_pageio_descriptor;
+struct nfs_pageio_ops {
+        bool    (*pg_test)(struct nfs_pageio_descriptor *, struct nfs_page *, struct nfs_page *);
+        int     (*pg_doio)(struct nfs_pageio_descriptor *);
+};
+
 struct nfs_pageio_descriptor {
         struct list_head        pg_list;
         unsigned long           pg_bytes_written;
@@ -64,11 +70,10 @@ struct nfs_pageio_descriptor {
         char                    pg_moreio;
 
         struct inode            *pg_inode;
-        int                     (*pg_doio)(struct nfs_pageio_descriptor *);
+        const struct nfs_pageio_ops *pg_ops;
         int                     pg_ioflags;
         int                     pg_error;
         struct pnfs_layout_segment *pg_lseg;
-        bool                    (*pg_test)(struct nfs_pageio_descriptor *, struct nfs_page *, struct nfs_page *);
 };
 
 #define NFS_WBACK_BUSY(req)     (test_bit(PG_BUSY,&(req)->wb_flags))
@@ -85,7 +90,7 @@ extern	int nfs_scan_list(struct nfs_inode *nfsi, struct list_head *dst,
                           pgoff_t idx_start, unsigned int npages, int tag);
 extern  void nfs_pageio_init(struct nfs_pageio_descriptor *desc,
                              struct inode *inode,
-                             int (*doio)(struct nfs_pageio_descriptor *desc),
+                             const struct nfs_pageio_ops *pg_ops,
                              size_t bsize,
                              int how);
 extern  int nfs_pageio_add_request(struct nfs_pageio_descriptor *,
@@ -100,6 +105,9 @@ extern	void nfs_unlock_request(struct nfs_page *req);
 extern  int nfs_set_page_tag_locked(struct nfs_page *req);
 extern  void nfs_clear_page_tag_locked(struct nfs_page *req);
 
+extern  int nfs_generic_pg_readpages(struct nfs_pageio_descriptor *desc);
+extern  int nfs_generic_pg_writepages(struct nfs_pageio_descriptor *desc);
+
 
 /*
  * Lock the page of an asynchronous request without getting a new reference