[PATCH] uml: don't redundantly mark pte as newpage in pte_modify

pte_modify marks a page as needing flush, which is redundant because the
resulting PTE is still set with set_pte, which already handles that.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>