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authorLinus Torvalds <torvalds@linux-foundation.org>2011-01-07 14:50:50 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2011-01-07 14:50:50 -0800
commitfb5131e1880ea1ba3ba7197cd5cc66c9c288f715 (patch)
treef0d9f25f9079727b9ead5a2b4cc85a0fea9b4668 /arch/s390/kernel/processor.c
parentd074b104cefcb6e8ded55a53e62fed59a246f55d (diff)
parent8e1023016cf17152972b98bce6c144834a4916d5 (diff)
Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: (65 commits) [S390] prevent unneccesary loops_per_jiffy recalculation [S390] cpuinfo: use get_online_cpus() instead of preempt_disable() [S390] smp: remove cpu hotplug messages [S390] mutex: enable spinning mutex on s390 [S390] mutex: Introduce arch_mutex_cpu_relax() [S390] cio: fix ccwgroup unregistration race condition [S390] perf: add DWARF register lookup for s390 [S390] cleanup ftrace backend functions [S390] ptrace cleanup [S390] smp/idle: call init_idle() before starting a new cpu [S390] smp: delay idle task creation [S390] dasd: Correct retry counter for terminated I/O. [S390] dasd: Add support for raw ECKD access. [S390] dasd: Prevent deadlock during suspend/resume. [S390] dasd: Improve handling of stolen DASD reservation [S390] dasd: do path verification for paths added at runtime [S390] dasd: add High Performance FICON multitrack support [S390] cio: reduce memory consumption of itcw structures [S390] nmi: enable machine checks early [S390] qeth: buffer count imbalance ...
Diffstat (limited to 'arch/s390/kernel/processor.c')
-rw-r--r--arch/s390/kernel/processor.c20
1 files changed, 4 insertions, 16 deletions
diff --git a/arch/s390/kernel/processor.c b/arch/s390/kernel/processor.c
index 644548e615c6..311e9d712888 100644
--- a/arch/s390/kernel/processor.c
+++ b/arch/s390/kernel/processor.c
@@ -13,7 +13,7 @@
#include <linux/smp.h>
#include <linux/seq_file.h>
#include <linux/delay.h>
-
+#include <linux/cpu.h>
#include <asm/elf.h>
#include <asm/lowcore.h>
#include <asm/param.h>
@@ -35,17 +35,6 @@ void __cpuinit cpu_init(void)
}
/*
- * print_cpu_info - print basic information about a cpu
- */
-void __cpuinit print_cpu_info(void)
-{
- struct cpuid *id = &per_cpu(cpu_id, smp_processor_id());
-
- pr_info("Processor %d started, address %d, identification %06X\n",
- S390_lowcore.cpu_nr, stap(), id->ident);
-}
-
-/*
* show_cpuinfo - Get information on one CPU for use by procfs.
*/
static int show_cpuinfo(struct seq_file *m, void *v)
@@ -57,9 +46,8 @@ static int show_cpuinfo(struct seq_file *m, void *v)
unsigned long n = (unsigned long) v - 1;
int i;
- s390_adjust_jiffies();
- preempt_disable();
if (!n) {
+ s390_adjust_jiffies();
seq_printf(m, "vendor_id : IBM/S390\n"
"# processors : %i\n"
"bogomips per cpu: %lu.%02lu\n",
@@ -71,7 +59,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
seq_printf(m, "%s ", hwcap_str[i]);
seq_puts(m, "\n");
}
-
+ get_online_cpus();
if (cpu_online(n)) {
struct cpuid *id = &per_cpu(cpu_id, n);
seq_printf(m, "processor %li: "
@@ -80,7 +68,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
"machine = %04X\n",
n, id->version, id->ident, id->machine);
}
- preempt_enable();
+ put_online_cpus();
return 0;
}