kclient: sync_page_range gone in 2.6.32; use vfs_fsync_range
kclient: sync_page_range gone in 2.6.32; use vfs_fsync_range

This is what generic_write_sync does, but we also want to do the
sync if we are NEARFULL.

ajnelson/ceph,ajnelson/ceph,ajnelson/ceph,ajnelson/ceph,ajnelson/ceph,ajnelson/ceph