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authorSebastian Andrzej Siewior <bigeasy@linutronix.de>2021-08-03 16:15:47 +0200
committerHeiko Carstens <hca@linux.ibm.com>2021-08-05 14:10:53 +0200
commita73de29320287d0e72b9e158879cb047e226ec2b (patch)
tree35fcafd2dec2ae48d7d7fdaf6e414f3c33f1ff64 /arch/s390/kernel
parentde5012b41e5c900a8a3875c7a825394c5f624c05 (diff)
s390: replace deprecated CPU-hotplug functions
The functions get_online_cpus() and put_online_cpus() have been deprecated during the CPU hotplug rework. They map directly to cpus_read_lock() and cpus_read_unlock(). Replace deprecated CPU-hotplug functions with the official version. The behavior remains unchanged. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Link: https://lore.kernel.org/r/20210803141621.780504-5-bigeasy@linutronix.de Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch/s390/kernel')
-rw-r--r--arch/s390/kernel/diag.c4
-rw-r--r--arch/s390/kernel/irq.c4
-rw-r--r--arch/s390/kernel/perf_cpum_cf.c4
-rw-r--r--arch/s390/kernel/processor.c4
-rw-r--r--arch/s390/kernel/smp.c8
-rw-r--r--arch/s390/kernel/topology.c4
6 files changed, 14 insertions, 14 deletions
diff --git a/arch/s390/kernel/diag.c b/arch/s390/kernel/diag.c
index 1e745c1a5786..e212037cd473 100644
--- a/arch/s390/kernel/diag.c
+++ b/arch/s390/kernel/diag.c
@@ -68,7 +68,7 @@ static int show_diag_stat(struct seq_file *m, void *v)
unsigned long n = (unsigned long) v - 1;
int cpu, prec, tmp;
- get_online_cpus();
+ cpus_read_lock();
if (n == 0) {
seq_puts(m, " ");
@@ -87,7 +87,7 @@ static int show_diag_stat(struct seq_file *m, void *v)
}
seq_printf(m, " %s\n", diag_map[n-1].name);
}
- put_online_cpus();
+ cpus_read_unlock();
return 0;
}
diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index 234d085257eb..3a3145c4a3ba 100644
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c
@@ -228,7 +228,7 @@ int show_interrupts(struct seq_file *p, void *v)
int index = *(loff_t *) v;
int cpu, irq;
- get_online_cpus();
+ cpus_read_lock();
if (index == 0) {
seq_puts(p, " ");
for_each_online_cpu(cpu)
@@ -258,7 +258,7 @@ int show_interrupts(struct seq_file *p, void *v)
seq_putc(p, '\n');
}
out:
- put_online_cpus();
+ cpus_read_unlock();
return 0;
}
diff --git a/arch/s390/kernel/perf_cpum_cf.c b/arch/s390/kernel/perf_cpum_cf.c
index d7dc36ec0a60..2e3bb633acf6 100644
--- a/arch/s390/kernel/perf_cpum_cf.c
+++ b/arch/s390/kernel/perf_cpum_cf.c
@@ -1138,7 +1138,7 @@ static long cfset_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
int ret;
- get_online_cpus();
+ cpus_read_lock();
mutex_lock(&cfset_ctrset_mutex);
switch (cmd) {
case S390_HWCTR_START:
@@ -1155,7 +1155,7 @@ static long cfset_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
break;
}
mutex_unlock(&cfset_ctrset_mutex);
- put_online_cpus();
+ cpus_read_unlock();
return ret;
}
diff --git a/arch/s390/kernel/processor.c b/arch/s390/kernel/processor.c
index eccd565044c7..d9d4a806979e 100644
--- a/arch/s390/kernel/processor.c
+++ b/arch/s390/kernel/processor.c
@@ -365,7 +365,7 @@ static inline void *c_update(loff_t *pos)
static void *c_start(struct seq_file *m, loff_t *pos)
{
- get_online_cpus();
+ cpus_read_lock();
return c_update(pos);
}
@@ -377,7 +377,7 @@ static void *c_next(struct seq_file *m, void *v, loff_t *pos)
static void c_stop(struct seq_file *m, void *v)
{
- put_online_cpus();
+ cpus_read_unlock();
}
const struct seq_operations cpuinfo_op = {
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);
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index 26aa2614ee35..d2458a29618f 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -406,7 +406,7 @@ static ssize_t dispatching_store(struct device *dev,
if (val != 0 && val != 1)
return -EINVAL;
rc = 0;
- get_online_cpus();
+ cpus_read_lock();
mutex_lock(&smp_cpu_state_mutex);
if (cpu_management == val)
goto out;
@@ -417,7 +417,7 @@ static ssize_t dispatching_store(struct device *dev,
topology_expect_change();
out:
mutex_unlock(&smp_cpu_state_mutex);
- put_online_cpus();
+ cpus_read_unlock();
return rc ? rc : count;
}
static DEVICE_ATTR_RW(dispatching);