[PATCH 03/14] uml: correct removal of pte_mkexec

["Paolo 'Blaisorblade' Giarrusso" <blaisorblade@yahoo.it>]

From: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>

Correct commit 5906e4171ad61ce68de95e51b773146707671f80 - this makes more sense:
we turn pte_mkexec + pte_wrprotect to pte_mkread. However, due to a bug in
pte_mkread, it does the exact same thing as pte_mkwrite, so this patch improves
the code but does not change anything in practice. The pte_mkread bug is fixed
separately, as it may have big impact.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
---

 arch/um/kernel/skas/mmu.c |    5 +----
 1 files changed, 1 insertions(+), 4 deletions(-)

diff --git a/arch/um/kernel/skas/mmu.c b/arch/um/kernel/skas/mmu.c
index c17eddc..2c6d090 100644
--- a/arch/um/kernel/skas/mmu.c
+++ b/arch/um/kernel/skas/mmu.c
@@ -60,10 +60,7 @@ #ifdef CONFIG_3_LEVEL_PGTABLES
 #endif
 
 	*pte = mk_pte(virt_to_page(kernel), __pgprot(_PAGE_PRESENT));
-	/* This is wrong for the code page, but it doesn't matter since the
-	 * stub is mapped by hand with the correct permissions.
-	 */
-	*pte = pte_mkwrite(*pte);
+	*pte = pte_mkread(*pte);
 	return(0);
 
  out_pmd:
Chiacchiera con i tuoi amici in tempo reale! 
 http://it.yahoo.com/mail_it/foot/*http://it.messenger.yahoo.com 
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/