[ARM SMP] Do not clear cpu_vm_mask for VIPT caches
authorRussell King <rmk@dyn-67.arm.linux.org.uk>
Thu, 3 Nov 2005 20:32:45 +0000 (20:32 +0000)
committerRussell King <rmk+kernel@arm.linux.org.uk>
Thu, 3 Nov 2005 20:32:45 +0000 (20:32 +0000)
Since we do not invalidate TLBs/caches on MM switches, we should not
clear the cpu_vm_mask for the CPU.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
include/asm-arm/mmu_context.h

index 4af9c411c617933438af278113f042bf15113cd9..57b8def83d4145d152eee6e8dabe71195c2978f5 100644 (file)
@@ -86,7 +86,8 @@ switch_mm(struct mm_struct *prev, struct mm_struct *next,
                cpu_set(cpu, next->cpu_vm_mask);
                check_context(next);
                cpu_switch_mm(next->pgd, next);
-               cpu_clear(cpu, prev->cpu_vm_mask);
+               if (cache_is_vivt())
+                       cpu_clear(cpu, prev->cpu_vm_mask);
        }
 }