Convert unmap_vm_area and map_vm_area pagetable walkers to loops using
p?d_addr_end; rename internal levels vunmap_p??_range, vmap_p??_range.
map_vm_area shows the style when allocating: allocs moved down a level.
Replace KERN_CRIT Whee message by boring WARN_ON.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>