lkml.org 
[lkml]   [2007]   [Sep]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] [15/50] x86_64: Return EINVAL for unknown address in change_page_attr
Date

Matches what i386 does and makes more sense.

Signed-off-by: Andi Kleen <ak@suse.de>

---
arch/x86_64/mm/pageattr.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

Index: linux/arch/x86_64/mm/pageattr.c
===================================================================
--- linux.orig/arch/x86_64/mm/pageattr.c
+++ linux/arch/x86_64/mm/pageattr.c
@@ -151,7 +151,9 @@ __change_page_attr(unsigned long address
pgprot_t ref_prot2;

kpte = lookup_address(address);
- if (!kpte) return 0;
+ if (!kpte)
+ return -EINVAL;
+
kpte_page = virt_to_page(((unsigned long)kpte) & PAGE_MASK);
BUG_ON(PageCompound(kpte_page));
BUG_ON(PageLRU(kpte_page));
-
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/
\
 
 \ /
  Last update: 2007-09-22 00:41    [W:0.322 / U:0.420 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site