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x86: allocate e820 resource struct all together 

don't need to allocate that one by one

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
hifive-unleashed-5.1
Yinghai Lu 2008-03-20 23:57:21 -07:00 committed by Ingo Molnar
parent 272b9cad6e
commit 01561264bd
1 changed files with 4 additions and 2 deletions
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6
arch/x86/kernel/e820_64.c
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@ -300,9 +300,10 @@ unsigned long __init e820_end_of_ram(void)
void __init e820_reserve_resources(void)
{
int i;
struct resource *res;
res = alloc_bootmem_low(sizeof(struct resource) * e820.nr_map);
for (i = 0; i < e820.nr_map; i++) {
struct resource *res;
res = alloc_bootmem_low(sizeof(struct resource));
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++;
}
}