summaryrefslogtreecommitdiffstats
path: root/arch/s390/kernel/smp.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/s390/kernel/smp.c')
-rw-r--r--arch/s390/kernel/smp.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index e612a125be31..a96729a89eec 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -793,7 +793,7 @@ static int __smp_rescan_cpus(struct sclp_core_info *info, bool early)
u16 core_id;
int nr, i;
- get_online_cpus();
+ cpus_read_lock();
mutex_lock(&smp_cpu_state_mutex);
nr = 0;
cpumask_xor(&avail, cpu_possible_mask, cpu_present_mask);
@@ -816,7 +816,7 @@ static int __smp_rescan_cpus(struct sclp_core_info *info, bool early)
nr += smp_add_core(&info->core[i], &avail, configured, early);
}
mutex_unlock(&smp_cpu_state_mutex);
- put_online_cpus();
+ cpus_read_unlock();
return nr;
}
@@ -1055,7 +1055,7 @@ static ssize_t cpu_configure_store(struct device *dev,
return -EINVAL;
if (val != 0 && val != 1)
return -EINVAL;
- get_online_cpus();
+ cpus_read_lock();
mutex_lock(&smp_cpu_state_mutex);
rc = -EBUSY;
/* disallow configuration changes of online cpus and cpu 0 */
@@ -1104,7 +1104,7 @@ static ssize_t cpu_configure_store(struct device *dev,
}
out:
mutex_unlock(&smp_cpu_state_mutex);
- put_online_cpus();
+ cpus_read_unlock();
return rc ? rc : count;
}
static DEVICE_ATTR(configure, 0644, cpu_configure_show, cpu_configure_store);