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authorYinghai Lu <yinghai@kernel.org>2010-08-25 13:39:14 -0700
committerH. Peter Anvin <hpa@zytor.com>2010-08-27 11:07:56 -0700
commit7950c407c0288b223a200c1bba8198941599ca37 (patch)
tree4d7ad677fa918630cc29363c197d2593198727be /mm/memblock.c
parent5303b68f57c227c27193a14e57dd12be27cd670f (diff)
downloadlinux-7950c407c0288b223a200c1bba8198941599ca37.tar.bz2
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>
Diffstat (limited to 'mm/memblock.c')
-rw-r--r--mm/memblock.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/mm/memblock.c b/mm/memblock.c
index b7ab10a2ef46..65e3ba8d09fb 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 __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;