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Commit 4e8309ba authored by Cody P Schafer's avatar Cody P Schafer Committed by Benjamin Herrenschmidt
Browse files

powerpc/mm: Eliminate unneeded for_each_memblock 



The only persistent change made by this loop is calling
memblock_set_node() once for each memblock, which is not useful (and has
no effect) as memblock_set_node() is not called with any
memblock-specific parameters.

Subsistute a single memblock_set_node().

Signed-off-by: default avatarCody P Schafer <cody@linux.vnet.ibm.com>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent dfd0436a

arch/powerpc/mm/mem.c

+4 −7
Original line number Diff line number Diff line
@@ -195,13 +195,10 @@ void __init do_init_bootmem(void) 
	min_low_pfn = MEMORY_START >> PAGE_SHIFT;

	boot_mapsize = init_bootmem_node(NODE_DATA(0), start >> PAGE_SHIFT, min_low_pfn, max_low_pfn);



	/* Add active regions with valid PFNs */

	for_each_memblock(memory, reg) {

		unsigned long start_pfn, end_pfn;

		start_pfn = memblock_region_memory_base_pfn(reg);

		end_pfn = memblock_region_memory_end_pfn(reg);

	/* Place all memblock_regions in the same node and merge contiguous

	 * memblock_regions

	 */

	memblock_set_node(0, (phys_addr_t)ULLONG_MAX, 0);

	}



	/* Add all physical memory to the bootmem map, mark each area

	 * present.