Commit e1ebfd33 authored by Trond Myklebust's avatar Trond Myklebust
Browse files

NFS: Kill the "defined but not used" compile error on nommu machines 



Bryan Wu reports that when compiling NFS on nommu machines he gets a
"defined but not used" error on nfs_file_mmap().

The easiest fix is simply to get rid of the special casing in NFS, and
just always call generic_file_mmap() to set up the file.

Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
parent 72cb77f4

fs/nfs/file.c

+5 −7
Original line number Diff line number Diff line
@@ -64,11 +64,7 @@ const struct file_operations nfs_file_operations = { 
	.write		= do_sync_write,

	.aio_read	= nfs_file_read,

	.aio_write	= nfs_file_write,

#ifdef CONFIG_MMU

	.mmap		= nfs_file_mmap,

#else

	.mmap		= generic_file_mmap,

#endif

	.open		= nfs_file_open,

	.flush		= nfs_file_flush,

	.release	= nfs_file_release,
@@ -304,11 +300,13 @@ nfs_file_mmap(struct file * file, struct vm_area_struct * vma) 
	dprintk("NFS: mmap(%s/%s)\n",

		dentry->d_parent->d_name.name, dentry->d_name.name);



	status = nfs_revalidate_mapping(inode, file->f_mapping);

	/* Note: generic_file_mmap() returns ENOSYS on nommu systems

	 *       so we call that before revalidating the mapping

	 */

	status = generic_file_mmap(file, vma);

	if (!status) {

		vma->vm_ops = &nfs_file_vm_ops;

		vma->vm_flags |= VM_CAN_NONLINEAR;

		file_accessed(file);

		status = nfs_revalidate_mapping(inode, file->f_mapping);

	}

	return status;

}

CRA Git | Maintained and supported by SUSTech CRA and CCSE