Messages in this thread Patch in this message | | | Subject | [PATCH] x86_64: allcate e820 resource struct all together | Date | Thu, 20 Mar 2008 23:57:21 -0700 | From | Yinghai Lu <> |
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don't need to allocate that one by one
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Index: linux-2.6/arch/x86/kernel/e820_64.c =================================================================== --- linux-2.6.orig/arch/x86/kernel/e820_64.c +++ linux-2.6/arch/x86/kernel/e820_64.c @@ -237,9 +237,9 @@ unsigned long __init e820_end_of_ram(voi 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; @@ -250,6 +250,7 @@ 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++; } }
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