vfs_insertdmapi    24 fs/xfs/linux-2.6/xfs_super.h # define vfs_insertdmapi(vfs)	vfs_insertops(vfsp, &xfs_dmops)
vfs_insertdmapi    28 fs/xfs/linux-2.6/xfs_super.h # define vfs_insertdmapi(vfs)	do { } while (0)