[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>

diff --git a/include/asm-um/pgtable.h b/include/asm-um/pgtable.h
index ed06170..616d02b 100644 (file)
--- a/include/asm-um/pgtable.h
+++ b/include/asm-um/pgtable.h
@@ -346,7 +346,6 @@ static inline void set_pte(pte_t *pteptr, pte_t pteval)
 static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
 {
        pte_set_val(pte, (pte_val(pte) & _PAGE_CHG_MASK), newprot);
-       if(pte_present(pte)) pte = pte_mknewpage(pte_mknewprot(pte));
        return pte; 
 }