X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=include%2Fasm-ppc%2Fmmu_context.h;h=4f152cca13c1985a02fc0c73d4a02808a2ea228d;hb=f1dccedc8148026d9071c6805f7cb77374a9e56f;hp=ccabbce39d8538702683e0fd51e30680018607f7;hpb=3e0777b8fa96f7073ed5d13d3bc1d573b766bef9;p=linux-2.6-omap-h63xx.git

diff --git a/include/asm-ppc/mmu_context.h b/include/asm-ppc/mmu_context.h
index ccabbce39d8..4f152cca13c 100644
--- a/include/asm-ppc/mmu_context.h
+++ b/include/asm-ppc/mmu_context.h
@@ -149,6 +149,7 @@ static inline void get_mmu_context(struct mm_struct *mm)
  */
 static inline void destroy_context(struct mm_struct *mm)
 {
+	preempt_disable();
 	if (mm->context != NO_CONTEXT) {
 		clear_bit(mm->context, context_map);
 		mm->context = NO_CONTEXT;
@@ -156,19 +157,18 @@ static inline void destroy_context(struct mm_struct *mm)
 		atomic_inc(&nr_free_contexts);
 #endif
 	}
+	preempt_enable();
 }
 
 static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
 			     struct task_struct *tsk)
 {
 #ifdef CONFIG_ALTIVEC
-	asm volatile (
- BEGIN_FTR_SECTION
-	"dssall;\n"
+	if (cpu_has_feature(CPU_FTR_ALTIVEC))
+	asm volatile ("dssall;\n"
 #ifndef CONFIG_POWER4
 	 "sync;\n" /* G4 needs a sync here, G5 apparently not */
 #endif
- END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
 	 : : );
 #endif /* CONFIG_ALTIVEC */