x86, suspend: Avoid unnecessary smp alternatives switch during suspend/resume

[pandora-kernel.git] / arch / x86 / kernel / alternative.c

diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index 0b30214..9f98eb4 100644 (file)
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -353,6 +353,7 @@ void __init_or_module alternatives_smp_module_del(struct module *mod)
        mutex_unlock(&smp_alt);
 }
 
+bool skip_smp_alternatives;
 void alternatives_smp_switch(int smp)
 {
        struct smp_alt_module *mod;
@@ -368,7 +369,7 @@ void alternatives_smp_switch(int smp)
        printk("lockdep: fixing up alternatives.\n");
 #endif
 
-       if (noreplace_smp || smp_alt_once)
+       if (noreplace_smp || smp_alt_once || skip_smp_alternatives)
                return;
        BUG_ON(!smp && (num_online_cpus() > 1));
 
@@ -638,7 +639,7 @@ void *__kprobes text_poke_smp(void *addr, const void *opcode, size_t len)
        atomic_set(&stop_machine_first, 1);
        wrote_text = 0;
        /* Use __stop_machine() because the caller already got online_cpus. */
-       __stop_machine(stop_machine_text_poke, (void *)&tpp, NULL);
+       __stop_machine(stop_machine_text_poke, (void *)&tpp, cpu_online_mask);
        return addr;
 }