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MIPS: Replace deprecated CPU-hotplug functions.

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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.

Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: linux-mips@vger.kernel.org
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This commit is contained in:
Sebastian Andrzej Siewior 2021-08-03 16:15:45 +02:00 committed by Thomas Bogendoerfer
parent a86aadeff2
commit 730d070ae9
2 changed files with 7 additions and 7 deletions
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10
arch/mips/kernel/mips-mt-fpaff.c
View File

@ -76,13 +76,13 @@ asmlinkage long mipsmt_sys_sched_setaffinity(pid_t pid, unsigned int len,
if (copy_from_user(&new_mask, user_mask_ptr, sizeof(new_mask)))
return -EFAULT;
get_online_cpus();
cpus_read_lock();
rcu_read_lock();
p = find_process_by_pid(pid);
if (!p) {
rcu_read_unlock();
put_online_cpus();
cpus_read_unlock();
return -ESRCH;
}
@ -147,7 +147,7 @@ out_free_cpus_allowed:
free_cpumask_var(cpus_allowed);
out_put_task:
put_task_struct(p);
put_online_cpus();
cpus_read_unlock();
return retval;
}
@ -166,7 +166,7 @@ asmlinkage long mipsmt_sys_sched_getaffinity(pid_t pid, unsigned int len,
if (len < real_len)
return -EINVAL;
get_online_cpus();
cpus_read_lock();
rcu_read_lock();
retval = -ESRCH;
@ -182,7 +182,7 @@ asmlinkage long mipsmt_sys_sched_getaffinity(pid_t pid, unsigned int len,
out_unlock:
rcu_read_unlock();
put_online_cpus();
cpus_read_unlock();
if (retval)
return retval;
if (copy_to_user(user_mask_ptr, &mask, real_len))

4
arch/mips/kernel/process.c
View File

@ -859,10 +859,10 @@ int mips_set_process_fp_mode(struct task_struct *task, unsigned int value)
* scheduled in then it will already have picked up the new FP mode
* whilst doing so.
*/
get_online_cpus();
cpus_read_lock();
for_each_cpu_and(cpu, &process_cpus, cpu_online_mask)
work_on_cpu(cpu, prepare_for_fp_mode_switch, NULL);
put_online_cpus();
cpus_read_unlock();
return 0;
}