kgdb: support for ARCH=arm

[linux-2.6] / include / asm-arm / mmu_context.h

diff --git a/include/asm-arm/mmu_context.h b/include/asm-arm/mmu_context.h
index 4981ad419198d1cf91d8f38cc0d54450f18c0c06..91b9dfdfed526235131bc4b026039064be28f9d7 100644 (file)
--- a/include/asm-arm/mmu_context.h
+++ b/include/asm-arm/mmu_context.h
@@ -20,7 +20,7 @@
 
 void __check_kvm_seq(struct mm_struct *mm);
 
-#if __LINUX_ARM_ARCH__ >= 6
+#ifdef CONFIG_CPU_HAS_ASID
 
 /*
  * On ARMv6, we have the following structure in the Context ID:
@@ -97,6 +97,11 @@ switch_mm(struct mm_struct *prev, struct mm_struct *next,
 #ifdef CONFIG_MMU
        unsigned int cpu = smp_processor_id();
 
+#ifdef CONFIG_SMP
+       /* check for possible thread migration */
+       if (!cpus_empty(next->cpu_vm_mask) && !cpu_isset(cpu, next->cpu_vm_mask))
+               __flush_icache_all();
+#endif
        if (!cpu_test_and_set(cpu, next->cpu_vm_mask) || prev != next) {
                check_context(next);
                cpu_switch_mm(next->pgd, next);