return min_t(int,MAX_NUMNODES,find_next_bit(srcp->bits, MAX_NUMNODES, n+1));
}
+static inline void init_nodemask_of_node(nodemask_t *mask, int node)
+{
+ nodes_clear(*mask);
+ node_set(node, *mask);
+}
+
#define nodemask_of_node(node) \
({ \
typeof(_unused_nodemask_arg_) m; \
if (sizeof(m) == sizeof(unsigned long)) { \
- m.bits[0] = 1UL<<(node); \
+ m.bits[0] = 1UL << (node); \
} else { \
- nodes_clear(m); \
- node_set((node), m); \
+ init_nodemask_of_node(&m, (node)); \
} \
m; \
})
#define for_each_online_node(node) for_each_node_state(node, N_ONLINE)
/*
- * For nodemask scrach area.(See CPUMASK_ALLOC() in cpumask.h)
- * NODEMASK_ALLOC(x, m) allocates an object of type 'x' with the name 'm'.
+ * For nodemask scrach area.
+ * NODEMASK_ALLOC(type, name) allocates an object with a specified type and
+ * name.
*/
-#if NODES_SHIFT > 8 /* nodemask_t > 64 bytes */
-#define NODEMASK_ALLOC(x, m) x *m = kmalloc(sizeof(*m), GFP_KERNEL)
-#define NODEMASK_FREE(m) kfree(m)
+#if NODES_SHIFT > 8 /* nodemask_t > 256 bytes */
+#define NODEMASK_ALLOC(type, name, gfp_flags) \
+ type *name = kmalloc(sizeof(*name), gfp_flags)
+#define NODEMASK_FREE(m) kfree(m)
#else
-#define NODEMASK_ALLOC(x, m) x _m, *m = &_m
-#define NODEMASK_FREE(m) do {} while (0)
+#define NODEMASK_ALLOC(type, name, gfp_flags) type _name, *name = &_name
+#define NODEMASK_FREE(m) do {} while (0)
#endif
/* A example struture for using NODEMASK_ALLOC, used in mempolicy. */
nodemask_t mask2;
};
-#define NODEMASK_SCRATCH(x) \
- NODEMASK_ALLOC(struct nodemask_scratch, x)
+#define NODEMASK_SCRATCH(x) \
+ NODEMASK_ALLOC(struct nodemask_scratch, x, \
+ GFP_KERNEL | __GFP_NORETRY)
#define NODEMASK_SCRATCH_FREE(x) NODEMASK_FREE(x)