diff options
| author | Atish Patra <atish.patra@oracle.com> | 2016-09-15 22:54:41 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-09-28 17:24:03 +0200 |
| commit | ebb99a4c12e4daabe1940ae936e8e7e97ae68c6f (patch) | |
| tree | e857fbe7a91bb78022da0b9c1abee53ffa06c6df /arch/sparc/mm | |
| parent | sparc64: Fix cpu_possible_mask if nr_cpus is set (diff) | |
| download | linux-ebb99a4c12e4daabe1940ae936e8e7e97ae68c6f.tar.xz linux-ebb99a4c12e4daabe1940ae936e8e7e97ae68c6f.zip | |
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 <atish.patra@oracle.com>
Reviewed-by: Bob Picco <bob.picco@oracle.com>
Reviewed-by: Vijay Kumar <vijay.ac.kumar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/mm')
| -rw-r--r-- | arch/sparc/mm/init_64.c | 16 |
1 files changed, 0 insertions, 16 deletions
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(); { |