cpumask: mm_cpumask for accessing the struct mm_struct's cpu_vm_mask.

This allows us to change the representation (to a dangling bitmap or cpumask_var_t) without breaking all the callers: they can use mm_cpumask() now and won't see a difference as the changes roll into linux-next. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
mariux64 · Mar 12, 2009 · 45e575a · 45e575a
1 parent 76e6eee
commit 45e575a
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
@@ -276,4 +276,7 @@ struct mm_struct {
 #endif
 };
 
+/* Future-safe accessor for struct mm_struct's cpu_vm_mask. */
+#define mm_cpumask(mm) (&(mm)->cpu_vm_mask)
+
 #endif /* _LINUX_MM_TYPES_H */