Merge

4 files changed, 35 insertions, 12 deletions

diff --git a/include/linux/fs.h b/include/linux/fs.h
index ad6648e3fd9c..327a63b8b934 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -308,7 +308,8 @@ struct address_space_operations {
 	int (*bmap)(struct address_space *, long);
 	int (*invalidatepage) (struct page *, unsigned long);
 	int (*releasepage) (struct page *, int);
-	int (*direct_IO)(int, struct inode *, const struct iovec *iov, loff_t offset, unsigned long nr_segs);
+	int (*direct_IO)(int, struct file *, const struct iovec *iov,
+			loff_t offset, unsigned long nr_segs);
 };
 
 struct backing_dev_info;
@@ -1242,7 +1243,7 @@ ssize_t generic_file_write_nolock(struct file *file, const struct iovec *iov,
 				unsigned long nr_segs, loff_t *ppos);
 extern ssize_t generic_file_sendfile(struct file *, struct file *, loff_t *, size_t);
 extern void do_generic_file_read(struct file *, loff_t *, read_descriptor_t *, read_actor_t);
-extern ssize_t generic_file_direct_IO(int rw, struct inode *inode, 
+extern ssize_t generic_file_direct_IO(int rw, struct file *file,
 	const struct iovec *iov, loff_t offset, unsigned long nr_segs);
 extern int generic_direct_IO(int rw, struct inode *inode, const struct iovec 
 	*iov, loff_t offset, unsigned long nr_segs, get_blocks_t *get_blocks);
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 16b3e1be73e3..582c7aa90344 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -14,6 +14,7 @@
 #include <linux/mm.h>
 #include <linux/pagemap.h>
 #include <linux/wait.h>
+#include <linux/uio.h>
 
 #include <linux/nfs_fs_sb.h>
 
@@ -24,6 +25,7 @@
 #include <linux/nfs.h>
 #include <linux/nfs2.h>
 #include <linux/nfs3.h>
+#include <linux/nfs_page.h>
 #include <linux/nfs_xdr.h>
 
 /*
@@ -242,9 +244,9 @@ loff_t page_offset(struct page *page)
 }
 
 static inline
-unsigned long page_index(struct page *page)
+loff_t req_offset(struct nfs_page *req)
 {
-	return page->index;
+	return ((loff_t)req->wb_index) << PAGE_CACHE_SHIFT;
 }
 
 /*
@@ -284,6 +286,12 @@ nfs_file_cred(struct file *file)
 }
 
 /*
+ * linux/fs/nfs/direct.c
+ */
+extern int nfs_direct_IO(int, struct file *, const struct iovec *, loff_t,
+			unsigned long);
+
+/*
  * linux/fs/nfs/dir.c
  */
 extern struct inode_operations nfs_dir_inode_operations;
@@ -353,7 +361,8 @@ nfs_wb_all(struct inode *inode)
 static inline int
 nfs_wb_page(struct inode *inode, struct page* page)
 {
-	int error = nfs_sync_file(inode, 0, page_index(page), 1, FLUSH_WAIT | FLUSH_STABLE);
+	int error = nfs_sync_file(inode, 0, page->index, 1,
+						FLUSH_WAIT | FLUSH_STABLE);
 	return (error < 0) ? error : 0;
 }
 
diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h
index 6bc44a6b1cb7..029818ff0870 100644
--- a/include/linux/nfs_page.h
+++ b/include/linux/nfs_page.h
@@ -33,7 +33,8 @@ struct nfs_page {
 	struct page		*wb_page;	/* page to read in/write out */
 	wait_queue_head_t	wb_wait;	/* wait queue */
 	unsigned long		wb_timeout;	/* when to read/write/commit */
-	unsigned int		wb_offset,	/* Offset of read/write */
+	unsigned long		wb_index;	/* Offset within mapping */
+	unsigned int		wb_offset,	/* Offset within page */
 				wb_bytes,	/* Length of request */
 				wb_count;	/* reference count */
 	unsigned long		wb_flags;
@@ -47,6 +48,7 @@ extern	struct nfs_page *nfs_create_request(struct rpc_cred *, struct inode *,
 					    unsigned int, unsigned int);
 extern	void nfs_clear_request(struct nfs_page *req);
 extern	void nfs_release_request(struct nfs_page *req);
+extern	void nfs_release_list(struct list_head *list);
 
 
 extern	void nfs_list_add_request(struct nfs_page *, struct list_head *);
@@ -58,6 +60,7 @@ extern	int nfs_scan_list(struct list_head *, struct list_head *,
 extern	int nfs_coalesce_requests(struct list_head *, struct list_head *,
 				  unsigned int);
 extern  int nfs_wait_on_request(struct nfs_page *);
+extern	int nfs_wait_for_reads(struct list_head *);
 
 extern	spinlock_t nfs_wreq_lock;
 
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index c68916571e71..8d9c04899d65 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -1,6 +1,8 @@
 #ifndef _LINUX_NFS_XDR_H
 #define _LINUX_NFS_XDR_H
 
+#include <linux/sunrpc/xprt.h>
+
 struct nfs_fattr {
 	unsigned short		valid;		/* which fields are valid */
 	__u64			pre_size;	/* pre_op_attr.size	  */
@@ -57,10 +59,14 @@ struct nfs_fsinfo {
 	__u32			namelen;/* max name length */
 };
 
-/* Arguments to the read call.
- * Note that NFS_READ_MAXIOV must be <= (MAX_IOVEC-2) from sunrpc/xprt.h
+/*
+ * Arguments to the read call.
  */
-#define NFS_READ_MAXIOV 8
+
+#define NFS_READ_MAXIOV		(9U)
+#if (NFS_READ_MAXIOV > (MAX_IOVEC -2))
+#error "NFS_READ_MAXIOV is too large"
+#endif
 
 struct nfs_readargs {
 	struct nfs_fh *		fh;
@@ -76,10 +82,14 @@ struct nfs_readres {
 	int                     eof;
 };
 
-/* Arguments to the write call.
- * Note that NFS_WRITE_MAXIOV must be <= (MAX_IOVEC-2) from sunrpc/xprt.h
+/*
+ * Arguments to the write call.
  */
-#define NFS_WRITE_MAXIOV        8
+#define NFS_WRITE_MAXIOV	(9U)
+#if (NFS_WRITE_MAXIOV > (MAX_IOVEC -2))
+#error "NFS_WRITE_MAXIOV is too large"
+#endif
+
 struct nfs_writeargs {
 	struct nfs_fh *		fh;
 	__u64			offset;