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authorMichael Holzheu <holzheu@linux.vnet.ibm.com>2013-10-11 10:29:23 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2013-10-24 17:17:04 +0200
commit5895294274bee046bcfdbb72f8998e2b14e26426 (patch)
tree0bb6d75ac4ebe0a661cb5d5bc6d206a9782e2edd /arch/s390/kernel/smp.c
parent05e0baaf9ba5a2d173c026530154388f0d2da72c (diff)
downloadlinux-linaro-stable-5895294274bee046bcfdbb72f8998e2b14e26426.tar.gz
s390: Remove zfcpdump NR_CPUS dependency
Currently zfpcdump can only collect registers for up to CONFIG_NR_CPUS CPUss. This dependency is not necessary. So remove it by dynamically allocating the save area array. Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/smp.c')
-rw-r--r--arch/s390/kernel/smp.c11
1 files changed, 1 insertions, 10 deletions
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index cca6cf6abacc..739313db71e5 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -533,9 +533,6 @@ EXPORT_SYMBOL(smp_ctl_clear_bit);
#if defined(CONFIG_ZFCPDUMP) || defined(CONFIG_CRASH_DUMP)
-struct save_area *zfcpdump_save_areas[NR_CPUS + 1];
-EXPORT_SYMBOL_GPL(zfcpdump_save_areas);
-
static void __init smp_get_save_area(int cpu, u16 address)
{
void *lc = pcpu_devices[0].lowcore;
@@ -546,15 +543,9 @@ static void __init smp_get_save_area(int cpu, u16 address)
if (!OLDMEM_BASE && (address == boot_cpu_address ||
ipl_info.type != IPL_TYPE_FCP_DUMP))
return;
- if (cpu >= NR_CPUS) {
- pr_warning("CPU %i exceeds the maximum %i and is excluded "
- "from the dump\n", cpu, NR_CPUS - 1);
- return;
- }
- save_area = kmalloc(sizeof(struct save_area), GFP_KERNEL);
+ save_area = dump_save_area_create(cpu);
if (!save_area)
panic("could not allocate memory for save area\n");
- zfcpdump_save_areas[cpu] = save_area;
#ifdef CONFIG_CRASH_DUMP
if (address == boot_cpu_address) {
/* Copy the registers of the boot cpu. */