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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2010-07-06 15:39:06 -0700
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2010-08-05 12:56:12 +1000
commitbf23c51f1f49d3960f3cd8e3d2e7f943d9c41042 (patch)
tree6150486aaeb3bc8601fdf61ebfe5b441af1e3fb7 /mm
parent4734b594c6ca1be796d30c82d93fdf5160f45124 (diff)
downloadop-kernel-dev-bf23c51f1f49d3960f3cd8e3d2e7f943d9c41042.zip
op-kernel-dev-bf23c51f1f49d3960f3cd8e3d2e7f943d9c41042.tar.gz
memblock: Move memblock arrays to static storage in memblock.c and make their size a variable
This is in preparation for having resizable arrays. Note that we still allocate one more than needed, this is unchanged from the previous implementation. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/memblock.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/mm/memblock.c b/mm/memblock.c
index 5ae413e..3c47450 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -18,6 +18,8 @@
struct memblock memblock;
static int memblock_debug;
+static struct memblock_region memblock_memory_init_regions[INIT_MEMBLOCK_REGIONS + 1];
+static struct memblock_region memblock_reserved_init_regions[INIT_MEMBLOCK_REGIONS + 1];
static int __init early_memblock(char *p)
{
@@ -104,6 +106,12 @@ static void memblock_coalesce_regions(struct memblock_type *type,
void __init memblock_init(void)
{
+ /* Hookup the initial arrays */
+ memblock.memory.regions = memblock_memory_init_regions;
+ memblock.memory.max = INIT_MEMBLOCK_REGIONS;
+ memblock.reserved.regions = memblock_reserved_init_regions;
+ memblock.reserved.max = INIT_MEMBLOCK_REGIONS;
+
/* Create a dummy zero size MEMBLOCK which will get coalesced away later.
* This simplifies the memblock_add() code below...
*/
@@ -169,7 +177,7 @@ static long memblock_add_region(struct memblock_type *type, phys_addr_t base, ph
if (coalesced)
return coalesced;
- if (type->cnt >= MAX_MEMBLOCK_REGIONS)
+ if (type->cnt >= type->max)
return -1;
/* Couldn't coalesce the MEMBLOCK, so add it to the sorted table. */
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