From: Rusty Russell <rusty@rustcorp.com.au>
Date: Thu, 12 Mar 2009 20:35:44 +0000 (-0600)
Subject: cpumask: mm_cpumask for accessing the struct mm_struct's cpu_vm_mask.
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=45e575ab9bfada5a5ef1b6174f8e749b1ecf0864;p=openwrt%2Fstaging%2Fblogic.git

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>
---

diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 92915e81443f..d84feb7bdbf0 100644
--- 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 */