[uml-devel] [PATCH 03/10] uml: don't redundantly mark pte as newpage in pte_modify

[Paolo 'B. G. <bla...@ya...>]

From: Paolo 'Blaisorblade' Giarrusso <bla...@ya...>

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 <bla...@ya...>
---

 include/asm-um/pgtable.h |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/include/asm-um/pgtable.h b/include/asm-um/pgtable.h
--- a/include/asm-um/pgtable.h
+++ b/include/asm-um/pgtable.h
@@ -346,7 +346,6 @@ static inline void set_pte(pte_t *pteptr
 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; 
 }