From 01561264bd1ea1d654d09babe02d784a5b150124 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Thu, 20 Mar 2008 23:57:21 -0700 Subject: [PATCH] x86: allocate e820 resource struct all together don't need to allocate that one by one Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- arch/x86/kernel/e820_64.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/e820_64.c b/arch/x86/kernel/e820_64.c index 4509757844..9184e6437c 100644 --- a/arch/x86/kernel/e820_64.c +++ b/arch/x86/kernel/e820_64.c @@ -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++; } } -- 2.39.5