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authorKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>2006-03-28 14:50:51 -0800
committerPaul Mackerras <paulus@samba.org>2006-03-29 13:44:15 +1100
commit0e5519548fdc8eadc3eacb49b1908d44d347fb2b (patch)
tree176d01babed4ece005f6c4715c464411c4262e9b /arch/powerpc/kernel/setup_64.c
parentbab70a4af737f623de5b034976a311055308ab86 (diff)
[PATCH] for_each_possible_cpu: powerpc
for_each_cpu() actually iterates across all possible CPUs. We've had mistakes in the past where people were using for_each_cpu() where they should have been iterating across only online or present CPUs. This is inefficient and possibly buggy. We're renaming for_each_cpu() to for_each_possible_cpu() to avoid this in the future. This patch replaces for_each_cpu with for_each_possible_cpu. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/setup_64.c')
-rw-r--r--arch/powerpc/kernel/setup_64.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 05b152299396..59aa92cd6fa4 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -474,7 +474,7 @@ static void __init irqstack_early_init(void)
* interrupt stacks must be under 256MB, we cannot afford to take
* SLB misses on them.
*/
- for_each_cpu(i) {
+ for_each_possible_cpu(i) {
softirq_ctx[i] = (struct thread_info *)
__va(lmb_alloc_base(THREAD_SIZE,
THREAD_SIZE, 0x10000000));
@@ -507,7 +507,7 @@ static void __init emergency_stack_init(void)
*/
limit = min(0x10000000UL, lmb.rmo_size);
- for_each_cpu(i)
+ for_each_possible_cpu(i)
paca[i].emergency_sp =
__va(lmb_alloc_base(HW_PAGE_SIZE, 128, limit)) + HW_PAGE_SIZE;
}
@@ -624,7 +624,7 @@ void __init setup_per_cpu_areas(void)
size = PERCPU_ENOUGH_ROOM;
#endif
- for_each_cpu(i) {
+ for_each_possible_cpu(i) {
ptr = alloc_bootmem_node(NODE_DATA(cpu_to_node(i)), size);
if (!ptr)
panic("Cannot allocate cpu data for CPU %d\n", i);