+ssize_t
+nfs_file_splice_read(struct file *in, loff_t *ppos, struct pipe_inode_info *pipe,
+ size_t len, unsigned int flags)
+{
+ struct inode *inode = file_inode(in);
+ ssize_t result;
+
+ dprintk("NFS: splice_read(%pD2, %zu@%llu)\n", in, len, *ppos);
+
+ nfs_start_io_read(inode);
+ result = nfs_revalidate_mapping(inode, in->f_mapping);
+ if (!result) {
+ result = filemap_splice_read(in, ppos, pipe, len, flags);
+ if (result > 0)
+ nfs_add_stats(inode, NFSIOS_NORMALREADBYTES, result);
+ }
+ nfs_end_io_read(inode);
+ return result;
+}
+EXPORT_SYMBOL_GPL(nfs_file_splice_read);
+