mempolicy: add MPOL_F_STATIC_NODES flag

[mirror_ubuntu-zesty-kernel.git] / include / linux / mempolicy.h

diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h
index f2bab4d2fc40c8064a3844da0758f9ad90097db4..07350d7b8d96e9d61870e60f5f94bd1d20877a25 100644 (file)
--- a/include/linux/mempolicy.h
+++ b/include/linux/mempolicy.h
@@ -24,11 +24,13 @@ enum {
 };
 
 /* Flags for set_mempolicy */
+#define MPOL_F_STATIC_NODES    (1 << 15)
+
 /*
  * MPOL_MODE_FLAGS is the union of all possible optional mode flags passed to
  * either set_mempolicy() or mbind().
  */
-#define MPOL_MODE_FLAGS        (0)
+#define MPOL_MODE_FLAGS        (MPOL_F_STATIC_NODES)
 
 /* Flags for get_mempolicy */
 #define MPOL_F_NODE    (1<<0)  /* return next IL mode instead of node mask */
@@ -85,7 +87,10 @@ struct mempolicy {
                nodemask_t       nodes;         /* interleave/bind */
                /* undefined for default */
        } v;
-       nodemask_t cpuset_mems_allowed; /* mempolicy relative to these nodes */
+       union {
+               nodemask_t cpuset_mems_allowed; /* relative to these nodes */
+               nodemask_t user_nodemask;       /* nodemask passed by user */
+       } w;
 };
 
 /*
@@ -124,7 +129,6 @@ static inline int mpol_equal(struct mempolicy *a, struct mempolicy *b)
                return 1;
        return __mpol_equal(a, b);
 }
-#define vma_mpol_equal(a,b) mpol_equal(vma_policy(a), vma_policy(b))
 
 /* Could later add inheritance of the process policy here. */
 
@@ -190,7 +194,6 @@ static inline int mpol_equal(struct mempolicy *a, struct mempolicy *b)
 {
        return 1;
 }
-#define vma_mpol_equal(a,b) 1
 
 #define mpol_set_vma_default(vma) do {} while(0)