So we can avoid export memblock_reserved_init_regions()
Suggested by Ben.
Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx>
---
include/linux/memblock.h | 2 ++
mm/memblock.c | 24 ++++++++++++++++++++++++
2 files changed, 26 insertions(+), 0 deletions(-)
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 5334b22..a05eabc 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -48,6 +48,8 @@ extern int memblock_can_resize;
if (memblock_debug) printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
u64 memblock_find_in_range(u64 start, u64 end, u64 size, u64 align);
+int memblock_free_reserved_regions(void);
+int memblock_reserve_reserved_regions(void);
extern void __init memblock_init(void);
extern void __init memblock_analyze(void);
diff --git a/mm/memblock.c b/mm/memblock.c
index e7029c8..4db9e25 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -170,6 +170,30 @@ u64 __init_memblock memblock_find_in_range(u64 start, u64 end, u64 size, u64 ali
return memblock_find_base(size, align, start, end);
}
+/*
+ * Free memblock.reserved.regions
+ */
+int 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 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;
--
1.6.4.2
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