memblock: Separate out memblock_find_in_range_node()
Node affine memblock allocation logic is currently implemented across
memblock_alloc_nid() and memblock_alloc_nid_region(). This
reorganizes it such that it resembles that of non-NUMA allocation API.
Area finding is collected and moved into new exported function
memblock_find_in_range_node() which is symmetrical to non-NUMA
counterpart - it handles @start/@end and understands ANYWHERE and
ACCESSIBLE. memblock_alloc_nid() now simply calls
memblock_find_in_range_node() and reserves the returned area.
This makes memblock_alloc[_try]_nid() observe ACCESSIBLE limit on node
affine allocations too (again, this doesn't make any difference for
the current sole user - sparc64).
Signed-off-by: Tejun Heo <tj@kernel.org>
Link: http://lkml.kernel.org/r/1310460395-30913-8-git-send-email-tj@kernel.org
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 329ffb2..7400d029 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -61,6 +61,10 @@
/* The numa aware allocator is only available if
* CONFIG_ARCH_POPULATES_NODE_MAP is set
*/
+extern phys_addr_t memblock_find_in_range_node(phys_addr_t start,
+ phys_addr_t end,
+ phys_addr_t size,
+ phys_addr_t align, int nid);
extern phys_addr_t memblock_alloc_nid(phys_addr_t size, phys_addr_t align,
int nid);
extern phys_addr_t memblock_alloc_try_nid(phys_addr_t size, phys_addr_t align,