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authorAtish Patra <atish.patra@oracle.com>2016-09-15 14:54:41 -0600
committerDavid S. Miller <davem@davemloft.net>2016-09-28 08:24:03 -0700
commitebb99a4c12e4daabe1940ae936e8e7e97ae68c6f (patch)
treee857fbe7a91bb78022da0b9c1abee53ffa06c6df /arch/sparc/mm/init_64.c
parent9b2f753ec23710aa32c0d837d2499db92fe9115b (diff)
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/init_64.c')
-rw-r--r--arch/sparc/mm/init_64.c16
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();
{