* [PATCH] PPC64 (3/3) Allocate irqstacks only for possible cpus
@ 2004-08-30 5:07 Paul Mackerras
0 siblings, 0 replies; only message in thread
From: Paul Mackerras @ 2004-08-30 5:07 UTC (permalink / raw)
To: akpm; +Cc: nathanl, anton, linux-kernel
With earlier setup of cpu_possible_map the number of irqstacks shrinks
from NR_CPUS to the number of possible cpus.
Signed-off-by: Nathan Lynch <nathanl@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff -urN akpm-29aug/arch/ppc64/kernel/irq.c akpm/arch/ppc64/kernel/irq.c
--- akpm-29aug/arch/ppc64/kernel/irq.c 2004-08-30 10:55:36.000000000 +1000
+++ akpm/arch/ppc64/kernel/irq.c 2004-08-30 15:02:33.104245224 +1000
@@ -929,7 +929,7 @@
struct thread_info *tp;
int i;
- for (i = 0; i < NR_CPUS; i++) {
+ for_each_cpu(i) {
memset((void *)softirq_ctx[i], 0, THREAD_SIZE);
tp = softirq_ctx[i];
tp->cpu = i;
diff -urN akpm-29aug/arch/ppc64/kernel/setup.c akpm/arch/ppc64/kernel/setup.c
--- akpm-29aug/arch/ppc64/kernel/setup.c 2004-08-30 15:02:42.393296512 +1000
+++ akpm/arch/ppc64/kernel/setup.c 2004-08-30 15:02:33.069250544 +1000
@@ -701,7 +701,7 @@
int i;
/* interrupt stacks must be under 256MB, we cannot afford to take SLB misses on them */
- for (i = 0; i < NR_CPUS; i++) {
+ for_each_cpu(i) {
softirq_ctx[i] = (struct thread_info *)__va(lmb_alloc_base(THREAD_SIZE,
THREAD_SIZE, 0x10000000));
hardirq_ctx[i] = (struct thread_info *)__va(lmb_alloc_base(THREAD_SIZE,
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2004-08-30 5:07 [PATCH] PPC64 (3/3) Allocate irqstacks only for possible cpus Paul Mackerras
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