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livepatch: 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.

Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Miroslav Benes <mbenes@suse.cz>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Joe Lawrence <joe.lawrence@redhat.com>
Cc: live-patching@vger.kernel.org
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Sebastian Andrzej Siewior 2021-08-03 16:16:09 +02:00 committed by Jiri Kosina
parent eb6bbacc46
commit 1daf08a066
1 changed files with 2 additions and 2 deletions
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4
kernel/livepatch/transition.c
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@ -411,7 +411,7 @@ void klp_try_complete_transition(void)
/*
* Ditto for the idle "swapper" tasks.
*/
get_online_cpus();
cpus_read_lock();
for_each_possible_cpu(cpu) {
task = idle_task(cpu);
if (cpu_online(cpu)) {
@ -423,7 +423,7 @@ void klp_try_complete_transition(void)
task->patch_state = klp_target_state;
}
}
put_online_cpus();
cpus_read_unlock();
if (!complete) {
if (klp_signals_cnt && !(klp_signals_cnt % SIGNALS_TIMEOUT))