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livepatch: 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: 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. * Ditto for the idle "swapper" tasks.
*/ */
get_online_cpus(); cpus_read_lock();
for_each_possible_cpu(cpu) { for_each_possible_cpu(cpu) {
task = idle_task(cpu); task = idle_task(cpu);
if (cpu_online(cpu)) { if (cpu_online(cpu)) {
@@ -423,7 +423,7 @@ void klp_try_complete_transition(void)
task->patch_state = klp_target_state; task->patch_state = klp_target_state;
} }
} }
put_online_cpus(); cpus_read_unlock();
if (!complete) { if (!complete) {
if (klp_signals_cnt && !(klp_signals_cnt % SIGNALS_TIMEOUT)) if (klp_signals_cnt && !(klp_signals_cnt % SIGNALS_TIMEOUT))