From ebb99a4c12e4daabe1940ae936e8e7e97ae68c6f Mon Sep 17 00:00:00 2001 From: Atish Patra Date: Thu, 15 Sep 2016 14:54:41 -0600 Subject: sparc64: Fix irq stack bootmem allocation. Currently, irq stack bootmem is allocated for all possible cpus before nr_cpus value changes the list of possible cpus. As a result, there is unnecessary wastage of bootmemory. Move the irq stack bootmem allocation so that it happens after possible cpu list is modified based on nr_cpus value. Signed-off-by: Atish Patra Reviewed-by: Bob Picco Reviewed-by: Vijay Kumar Signed-off-by: David S. Miller --- arch/sparc/mm/init_64.c | 16 ---------------- 1 file changed, 16 deletions(-) (limited to 'arch/sparc/mm/init_64.c') diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c index 80031fc2e2d6..7ac6b62fb7c1 100644 --- a/arch/sparc/mm/init_64.c +++ b/arch/sparc/mm/init_64.c @@ -2081,7 +2081,6 @@ void __init paging_init(void) { unsigned long end_pfn, shift, phys_base; unsigned long real_end, i; - int node; setup_page_offset(); @@ -2250,21 +2249,6 @@ void __init paging_init(void) /* Setup bootmem... */ last_valid_pfn = end_pfn = bootmem_init(phys_base); - /* Once the OF device tree and MDESC have been setup, we know - * the list of possible cpus. Therefore we can allocate the - * IRQ stacks. - */ - for_each_possible_cpu(i) { - node = cpu_to_node(i); - - softirq_stack[i] = __alloc_bootmem_node(NODE_DATA(node), - THREAD_SIZE, - THREAD_SIZE, 0); - hardirq_stack[i] = __alloc_bootmem_node(NODE_DATA(node), - THREAD_SIZE, - THREAD_SIZE, 0); - } - kernel_physical_mapping_init(); { -- cgit v1.2.3-58-ga151