diff options
| author | Andi Kleen <ak@suse.de> | 2008-01-30 13:33:53 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:33:53 +0100 |
| commit | 934d15854d04e8ca2495d8f5698164df990d5d66 (patch) | |
| tree | da1e14ba6c88b3862fbd2f8e6a62e6e91622452d /arch/x86/kernel | |
| parent | 1e8e23bc469a11fc190a6bace857075d83dc2555 (diff) | |
x86: remove set_kernel_exec()
The SMP trampoline always runs in real mode, so making it executable
in the page tables doesn't make much sense because it executes
before page tables are set up. That was the only user of
set_kernel_exec(). Remove set_kernel_exec().
Signed-off-by: Andi Kleen <ak@suse.de>
Acked-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/smpboot_32.c | 11 |
1 files changed, 0 insertions, 11 deletions
diff --git a/arch/x86/kernel/smpboot_32.c b/arch/x86/kernel/smpboot_32.c index 7a62dced61c..5787a0c3e29 100644 --- a/arch/x86/kernel/smpboot_32.c +++ b/arch/x86/kernel/smpboot_32.c @@ -107,7 +107,6 @@ u8 apicid_2_node[MAX_APICID]; extern const unsigned char trampoline_data []; extern const unsigned char trampoline_end []; static unsigned char *trampoline_base; -static int trampoline_exec; static void map_cpu_to_logical_apicid(void); @@ -139,10 +138,6 @@ void __init smp_alloc_memory(void) */ if (__pa(trampoline_base) >= 0x9F000) BUG(); - /* - * Make the SMP trampoline executable: - */ - trampoline_exec = set_kernel_exec((unsigned long)trampoline_base, 1); } /* @@ -1290,12 +1285,6 @@ void __init native_smp_cpus_done(unsigned int max_cpus) setup_ioapic_dest(); #endif zap_low_mappings(); -#ifndef CONFIG_HOTPLUG_CPU - /* - * Disable executability of the SMP trampoline: - */ - set_kernel_exec((unsigned long)trampoline_base, trampoline_exec); -#endif } void __init smp_intr_init(void) |