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-rw-r--r--kernel/cpu.c11
-rw-r--r--kernel/cpuset.c4
-rw-r--r--kernel/irq/chip.c2
-rw-r--r--kernel/irq/manage.c22
-rw-r--r--kernel/irq/migration.c14
-rw-r--r--kernel/irq/proc.c29
-rw-r--r--kernel/profile.c4
-rw-r--r--kernel/sched.c6
-rw-r--r--kernel/sched_stats.h2
-rw-r--r--kernel/taskstats.c2
-rw-r--r--kernel/time/clockevents.c2
-rw-r--r--kernel/time/tick-broadcast.c2
-rw-r--r--kernel/time/tick-common.c12
-rw-r--r--kernel/trace/trace.c4
14 files changed, 63 insertions, 53 deletions
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 8ea32e8d68b0..bae131a1211b 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -24,19 +24,20 @@
cpumask_t cpu_present_map __read_mostly;
EXPORT_SYMBOL(cpu_present_map);
-#ifndef CONFIG_SMP
-
/*
* Represents all cpu's that are currently online.
*/
-cpumask_t cpu_online_map __read_mostly = CPU_MASK_ALL;
+cpumask_t cpu_online_map __read_mostly;
EXPORT_SYMBOL(cpu_online_map);
+#ifdef CONFIG_INIT_ALL_POSSIBLE
cpumask_t cpu_possible_map __read_mostly = CPU_MASK_ALL;
+#else
+cpumask_t cpu_possible_map __read_mostly;
+#endif
EXPORT_SYMBOL(cpu_possible_map);
-#else /* CONFIG_SMP */
-
+#ifdef CONFIG_SMP
/* Serializes the updates to cpu_online_map, cpu_present_map */
static DEFINE_MUTEX(cpu_add_remove_lock);
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 96c0ba13b8cd..39c1a4c1c5a9 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -896,7 +896,7 @@ static int update_cpumask(struct cpuset *cs, const char *buf)
if (!*buf) {
cpus_clear(trialcs.cpus_allowed);
} else {
- retval = cpulist_parse(buf, trialcs.cpus_allowed);
+ retval = cpulist_parse(buf, &trialcs.cpus_allowed);
if (retval < 0)
return retval;
@@ -1482,7 +1482,7 @@ static int cpuset_sprintf_cpulist(char *page, struct cpuset *cs)
mask = cs->cpus_allowed;
mutex_unlock(&callback_mutex);
- return cpulist_scnprintf(page, PAGE_SIZE, mask);
+ return cpulist_scnprintf(page, PAGE_SIZE, &mask);
}
static int cpuset_sprintf_memlist(char *page, struct cpuset *cs)
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 8e4fce4a1b1f..0af16aeee8b6 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -46,7 +46,7 @@ void dynamic_irq_init(unsigned int irq)
desc->irq_count = 0;
desc->irqs_unhandled = 0;
#ifdef CONFIG_SMP
- cpus_setall(desc->affinity);
+ cpumask_setall(&desc->affinity);
#endif
spin_unlock_irqrestore(&desc->lock, flags);
}
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 801addda3c43..10ad2f87ed9a 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -79,7 +79,7 @@ int irq_can_set_affinity(unsigned int irq)
* @cpumask: cpumask
*
*/
-int irq_set_affinity(unsigned int irq, cpumask_t cpumask)
+int irq_set_affinity(unsigned int irq, const struct cpumask *cpumask)
{
struct irq_desc *desc = irq_to_desc(irq);
unsigned long flags;
@@ -91,14 +91,14 @@ int irq_set_affinity(unsigned int irq, cpumask_t cpumask)
#ifdef CONFIG_GENERIC_PENDING_IRQ
if (desc->status & IRQ_MOVE_PCNTXT || desc->status & IRQ_DISABLED) {
- desc->affinity = cpumask;
+ cpumask_copy(&desc->affinity, cpumask);
desc->chip->set_affinity(irq, cpumask);
} else {
desc->status |= IRQ_MOVE_PENDING;
- desc->pending_mask = cpumask;
+ cpumask_copy(&desc->pending_mask, cpumask);
}
#else
- desc->affinity = cpumask;
+ cpumask_copy(&desc->affinity, cpumask);
desc->chip->set_affinity(irq, cpumask);
#endif
desc->status |= IRQ_AFFINITY_SET;
@@ -112,26 +112,24 @@ int irq_set_affinity(unsigned int irq, cpumask_t cpumask)
*/
int do_irq_select_affinity(unsigned int irq, struct irq_desc *desc)
{
- cpumask_t mask;
-
if (!irq_can_set_affinity(irq))
return 0;
- cpus_and(mask, cpu_online_map, irq_default_affinity);
-
/*
* Preserve an userspace affinity setup, but make sure that
* one of the targets is online.
*/
if (desc->status & (IRQ_AFFINITY_SET | IRQ_NO_BALANCING)) {
- if (cpus_intersects(desc->affinity, cpu_online_map))
- mask = desc->affinity;
+ if (cpumask_any_and(&desc->affinity, cpu_online_mask)
+ < nr_cpu_ids)
+ goto set_affinity;
else
desc->status &= ~IRQ_AFFINITY_SET;
}
- desc->affinity = mask;
- desc->chip->set_affinity(irq, mask);
+ cpumask_and(&desc->affinity, cpu_online_mask, &irq_default_affinity);
+set_affinity:
+ desc->chip->set_affinity(irq, &desc->affinity);
return 0;
}
diff --git a/kernel/irq/migration.c b/kernel/irq/migration.c
index 9db681d95814..bd72329e630c 100644
--- a/kernel/irq/migration.c
+++ b/kernel/irq/migration.c
@@ -4,7 +4,6 @@
void move_masked_irq(int irq)
{
struct irq_desc *desc = irq_to_desc(irq);
- cpumask_t tmp;
if (likely(!(desc->status & IRQ_MOVE_PENDING)))
return;
@@ -19,7 +18,7 @@ void move_masked_irq(int irq)
desc->status &= ~IRQ_MOVE_PENDING;
- if (unlikely(cpus_empty(desc->pending_mask)))
+ if (unlikely(cpumask_empty(&desc->pending_mask)))
return;
if (!desc->chip->set_affinity)
@@ -27,8 +26,6 @@ void move_masked_irq(int irq)
assert_spin_locked(&desc->lock);
- cpus_and(tmp, desc->pending_mask, cpu_online_map);
-
/*
* If there was a valid mask to work with, please
* do the disable, re-program, enable sequence.
@@ -41,10 +38,13 @@ void move_masked_irq(int irq)
* For correct operation this depends on the caller
* masking the irqs.
*/
- if (likely(!cpus_empty(tmp))) {
- desc->chip->set_affinity(irq,tmp);
+ if (likely(cpumask_any_and(&desc->pending_mask, cpu_online_mask)
+ < nr_cpu_ids)) {
+ cpumask_and(&desc->affinity,
+ &desc->pending_mask, cpu_online_mask);
+ desc->chip->set_affinity(irq, &desc->affinity);
}
- cpus_clear(desc->pending_mask);
+ cpumask_clear(&desc->pending_mask);
}
void move_native_irq(int irq)
diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index f6b3440f05bc..d2c0e5ee53c5 100644
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -40,33 +40,42 @@ static ssize_t irq_affinity_proc_write(struct file *file,
const char __user *buffer, size_t count, loff_t *pos)
{
unsigned int irq = (int)(long)PDE(file->f_path.dentry->d_inode)->data;
- cpumask_t new_value;
+ cpumask_var_t new_value;
int err;
if (!irq_to_desc(irq)->chip->set_affinity || no_irq_affinity ||
irq_balancing_disabled(irq))
return -EIO;
+ if (!alloc_cpumask_var(&new_value, GFP_KERNEL))
+ return -ENOMEM;
+
err = cpumask_parse_user(buffer, count, new_value);
if (err)
- return err;
+ goto free_cpumask;
- if (!is_affinity_mask_valid(new_value))
- return -EINVAL;
+ if (!is_affinity_mask_valid(*new_value)) {
+ err = -EINVAL;
+ goto free_cpumask;
+ }
/*
* Do not allow disabling IRQs completely - it's a too easy
* way to make the system unusable accidentally :-) At least
* one online CPU still has to be targeted.
*/
- if (!cpus_intersects(new_value, cpu_online_map))
+ if (!cpumask_intersects(new_value, cpu_online_mask)) {
/* Special case for empty set - allow the architecture
code to set default SMP affinity. */
- return irq_select_affinity_usr(irq) ? -EINVAL : count;
-
- irq_set_affinity(irq, new_value);
+ err = irq_select_affinity_usr(irq) ? -EINVAL : count;
+ } else {
+ irq_set_affinity(irq, new_value);
+ err = count;
+ }
- return count;
+free_cpumask:
+ free_cpumask_var(new_value);
+ return err;
}
static int irq_affinity_proc_open(struct inode *inode, struct file *file)
@@ -95,7 +104,7 @@ static ssize_t default_affinity_write(struct file *file,
cpumask_t new_value;
int err;
- err = cpumask_parse_user(buffer, count, new_value);
+ err = cpumask_parse_user(buffer, count, &new_value);
if (err)
return err;
diff --git a/kernel/profile.c b/kernel/profile.c
index 60adefb59b5e..4cb7d68fed82 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -442,7 +442,7 @@ void profile_tick(int type)
static int prof_cpu_mask_read_proc(char *page, char **start, off_t off,
int count, int *eof, void *data)
{
- int len = cpumask_scnprintf(page, count, *(cpumask_t *)data);
+ int len = cpumask_scnprintf(page, count, (cpumask_t *)data);
if (count - len < 2)
return -EINVAL;
len += sprintf(page + len, "\n");
@@ -456,7 +456,7 @@ static int prof_cpu_mask_write_proc(struct file *file,
unsigned long full_count = count, err;
cpumask_t new_value;
- err = cpumask_parse_user(buffer, count, new_value);
+ err = cpumask_parse_user(buffer, count, &new_value);
if (err)
return err;
diff --git a/kernel/sched.c b/kernel/sched.c
index e00c92d22655..b309027bf9e8 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -6643,7 +6643,7 @@ static int sched_domain_debug_one(struct sched_domain *sd, int cpu, int level,
struct sched_group *group = sd->groups;
char str[256];
- cpulist_scnprintf(str, sizeof(str), *sched_domain_span(sd));
+ cpulist_scnprintf(str, sizeof(str), sched_domain_span(sd));
cpumask_clear(groupmask);
printk(KERN_DEBUG "%*s domain %d: ", level, "", level);
@@ -6696,7 +6696,7 @@ static int sched_domain_debug_one(struct sched_domain *sd, int cpu, int level,
cpumask_or(groupmask, groupmask, sched_group_cpus(group));
- cpulist_scnprintf(str, sizeof(str), *sched_group_cpus(group));
+ cpulist_scnprintf(str, sizeof(str), sched_group_cpus(group));
printk(KERN_CONT " %s", str);
group = group->next;
@@ -6938,7 +6938,7 @@ static cpumask_var_t cpu_isolated_map;
/* Setup the mask of cpus configured for isolated domains */
static int __init isolated_cpu_setup(char *str)
{
- cpulist_parse(str, *cpu_isolated_map);
+ cpulist_parse(str, cpu_isolated_map);
return 1;
}
diff --git a/kernel/sched_stats.h b/kernel/sched_stats.h
index ce340835d055..5fcf0e184586 100644
--- a/kernel/sched_stats.h
+++ b/kernel/sched_stats.h
@@ -43,7 +43,7 @@ static int show_schedstat(struct seq_file *seq, void *v)
enum cpu_idle_type itype;
cpumask_scnprintf(mask_str, mask_len,
- *sched_domain_span(sd));
+ sched_domain_span(sd));
seq_printf(seq, "domain%d %s", dcount++, mask_str);
for (itype = CPU_IDLE; itype < CPU_MAX_IDLE_TYPES;
itype++) {
diff --git a/kernel/taskstats.c b/kernel/taskstats.c
index bd6be76303cf..6d7dc4ec4aa5 100644
--- a/kernel/taskstats.c
+++ b/kernel/taskstats.c
@@ -352,7 +352,7 @@ static int parse(struct nlattr *na, cpumask_t *mask)
if (!data)
return -ENOMEM;
nla_strlcpy(data, na, len);
- ret = cpulist_parse(data, *mask);
+ ret = cpulist_parse(data, mask);
kfree(data);
return ret;
}
diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c
index f8d968063cea..ea2f48af83cf 100644
--- a/kernel/time/clockevents.c
+++ b/kernel/time/clockevents.c
@@ -166,6 +166,8 @@ static void clockevents_notify_released(void)
void clockevents_register_device(struct clock_event_device *dev)
{
BUG_ON(dev->mode != CLOCK_EVT_MODE_UNUSED);
+ BUG_ON(!dev->cpumask);
+
/*
* A nsec2cyc multiplicator of 0 is invalid and we'd crash
* on it, so fix it up and emit a warning:
diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c
index f98a1b7b16e9..9590af2327be 100644
--- a/kernel/time/tick-broadcast.c
+++ b/kernel/time/tick-broadcast.c
@@ -150,7 +150,7 @@ static void tick_do_broadcast(cpumask_t mask)
*/
cpu = first_cpu(mask);
td = &per_cpu(tick_cpu_device, cpu);
- td->evtdev->broadcast(mask);
+ td->evtdev->broadcast(&mask);
}
}
diff --git a/kernel/time/tick-common.c b/kernel/time/tick-common.c
index df12434b43ca..f8372be74122 100644
--- a/kernel/time/tick-common.c
+++ b/kernel/time/tick-common.c
@@ -136,7 +136,7 @@ void tick_setup_periodic(struct clock_event_device *dev, int broadcast)
*/
static void tick_setup_device(struct tick_device *td,
struct clock_event_device *newdev, int cpu,
- const cpumask_t *cpumask)
+ const struct cpumask *cpumask)
{
ktime_t next_event;
void (*handler)(struct clock_event_device *) = NULL;
@@ -171,8 +171,8 @@ static void tick_setup_device(struct tick_device *td,
* When the device is not per cpu, pin the interrupt to the
* current cpu:
*/
- if (!cpus_equal(newdev->cpumask, *cpumask))
- irq_set_affinity(newdev->irq, *cpumask);
+ if (!cpumask_equal(newdev->cpumask, cpumask))
+ irq_set_affinity(newdev->irq, cpumask);
/*
* When global broadcasting is active, check if the current
@@ -202,14 +202,14 @@ static int tick_check_new_device(struct clock_event_device *newdev)
spin_lock_irqsave(&tick_device_lock, flags);
cpu = smp_processor_id();
- if (!cpu_isset(cpu, newdev->cpumask))
+ if (!cpumask_test_cpu(cpu, newdev->cpumask))
goto out_bc;
td = &per_cpu(tick_cpu_device, cpu);
curdev = td->evtdev;
/* cpu local device ? */
- if (!cpus_equal(newdev->cpumask, cpumask_of_cpu(cpu))) {
+ if (!cpumask_equal(newdev->cpumask, cpumask_of(cpu))) {
/*
* If the cpu affinity of the device interrupt can not
@@ -222,7 +222,7 @@ static int tick_check_new_device(struct clock_event_device *newdev)
* If we have a cpu local device already, do not replace it
* by a non cpu local device
*/
- if (curdev && cpus_equal(curdev->cpumask, cpumask_of_cpu(cpu)))
+ if (curdev && cpumask_equal(curdev->cpumask, cpumask_of(cpu)))
goto out_bc;
}
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 8ebe0070c47a..6adf660fc816 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -2646,7 +2646,7 @@ tracing_cpumask_read(struct file *filp, char __user *ubuf,
mutex_lock(&tracing_cpumask_update_lock);
- len = cpumask_scnprintf(mask_str, count, tracing_cpumask);
+ len = cpumask_scnprintf(mask_str, count, &tracing_cpumask);
if (count - len < 2) {
count = -EINVAL;
goto out_err;
@@ -2667,7 +2667,7 @@ tracing_cpumask_write(struct file *filp, const char __user *ubuf,
int err, cpu;
mutex_lock(&tracing_cpumask_update_lock);
- err = cpumask_parse_user(ubuf, count, tracing_cpumask_new);
+ err = cpumask_parse_user(ubuf, count, &tracing_cpumask_new);
if (err)
goto err_unlock;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.