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authorJan Beulich <jbeulich@novell.com>2007-07-21 17:10:26 +0200
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-21 18:37:09 -0700
commitd5321abe6abd16e1749ccd89636415d39611e138 (patch)
treee9f845273999579fc59df27690ca3cc993c99de7 /arch
parent09488165d5cc795a90b789c5657b1cbd279beb16 (diff)
i386: minor nx handling adjustment
Constrain __supported_pte_mask and NX handling to just the PAE kernel. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/i386/mm/init.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/i386/mm/init.c b/arch/i386/mm/init.c
index 6e72f22e6bbd..e1a9a805c445 100644
--- a/arch/i386/mm/init.c
+++ b/arch/i386/mm/init.c
@@ -471,6 +471,10 @@ void zap_low_mappings (void)
flush_tlb_all();
}
+int nx_enabled = 0;
+
+#ifdef CONFIG_X86_PAE
+
static int disable_nx __initdata = 0;
u64 __supported_pte_mask __read_mostly = ~_PAGE_NX;
EXPORT_SYMBOL_GPL(__supported_pte_mask);
@@ -500,9 +504,6 @@ static int __init noexec_setup(char *str)
}
early_param("noexec", noexec_setup);
-int nx_enabled = 0;
-#ifdef CONFIG_X86_PAE
-
static void __init set_nx(void)
{
unsigned int v[4], l, h;