memblock: Add memblock_free/reserve_reserved_regions()
So we can avoid export memblock_reserved_init_regions()
Suggested by Ben.
-v2: use __init_memblock attribute
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
diff --git a/mm/memblock.c b/mm/memblock.c
index b7ab10a..65e3ba8d 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -170,6 +170,30 @@
return memblock_find_base(size, align, start, end);
}
+/*
+ * Free memblock.reserved.regions
+ */
+int __init_memblock memblock_free_reserved_regions(void)
+{
+ if (memblock.reserved.regions == memblock_reserved_init_regions)
+ return 0;
+
+ return memblock_free(__pa(memblock.reserved.regions),
+ sizeof(struct memblock_region) * memblock.reserved.max);
+}
+
+/*
+ * Reserve memblock.reserved.regions
+ */
+int __init_memblock memblock_reserve_reserved_regions(void)
+{
+ if (memblock.reserved.regions == memblock_reserved_init_regions)
+ return 0;
+
+ return memblock_reserve(__pa(memblock.reserved.regions),
+ sizeof(struct memblock_region) * memblock.reserved.max);
+}
+
static void __init_memblock memblock_remove_region(struct memblock_type *type, unsigned long r)
{
unsigned long i;