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Commit 01561264 authored by Yinghai Lu's avatar Yinghai Lu Committed by Ingo Molnar
Browse files

x86: allocate e820 resource struct all together 



don't need to allocate that one by one

Signed-off-by: default avatarYinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 272b9cad

arch/x86/kernel/e820_64.c

+4 −2
Original line number Diff line number Diff line
@@ -300,9 +300,10 @@ unsigned long __init e820_end_of_ram(void) 
void __init e820_reserve_resources(void)

{

	int i;

	for (i = 0; i < e820.nr_map; i++) {

	struct resource *res;

		res = alloc_bootmem_low(sizeof(struct resource));



	res = alloc_bootmem_low(sizeof(struct resource) * e820.nr_map);

	for (i = 0; i < e820.nr_map; i++) {

		switch (e820.map[i].type) {

		case E820_RAM:	res->name = "System RAM"; break;

		case E820_ACPI:	res->name = "ACPI Tables"; break;
@@ -313,6 +314,7 @@ void __init e820_reserve_resources(void) 
		res->end = res->start + e820.map[i].size - 1;

		res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;

		insert_resource(&iomem_resource, res);

		res++;

	}

}