NFS: Cleanup the coalescing code

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 11 insertions, 2 deletions

diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h
index 16b0266b14fd..3ef8e0441473 100644
--- a/include/linux/nfs_page.h
+++ b/include/linux/nfs_page.h
@@ -48,6 +48,13 @@ struct nfs_page {
         struct nfs_writeverf    wb_verf;        /* Commit cookie */
 };
 
+struct nfs_pageio_descriptor {
+        struct list_head        pg_list;
+        size_t                  pg_count;
+        size_t                  pg_bsize;
+        unsigned int            pg_base;
+};
+
 #define NFS_WBACK_BUSY(req)     (test_bit(PG_BUSY,&(req)->wb_flags))
 
 extern  struct nfs_page *nfs_create_request(struct nfs_open_context *ctx,
@@ -64,8 +71,10 @@ extern	long nfs_scan_dirty(struct address_space *mapping,
                                 struct list_head *dst);
 extern  int nfs_scan_list(struct nfs_inode *nfsi, struct list_head *head, struct list_head *dst,
                           unsigned long idx_start, unsigned int npages);
-extern  int nfs_coalesce_requests(struct list_head *, struct list_head *,
-                                  unsigned int);
+extern  void nfs_pageio_init(struct nfs_pageio_descriptor *desc,
+                             size_t iosize);
+extern  void nfs_pageio_add_list(struct nfs_pageio_descriptor *,
+                                 struct list_head *);
 extern  int nfs_wait_on_request(struct nfs_page *);
 extern  void nfs_unlock_request(struct nfs_page *req);
 extern  int nfs_set_page_writeback_locked(struct nfs_page *req);