__reload_late() is called from stop_machine context and thus cannot
acquire a non-raw spinlock on PREEMPT_RT.
Signed-off-by: Scott Wood <swood@redhat.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: Clark Williams <williams@redhat.com>
Cc: Pei Zhang <pezhang@redhat.com>
Cc: x86-ml <x86@kernel.org>
Link: http://lkml.kernel.org/r/20180524154420.24455-1-swood@redhat.com
/*
* Serialize late loading so that CPUs get updated one-by-one.
*/
/*
* Serialize late loading so that CPUs get updated one-by-one.
*/
-static DEFINE_SPINLOCK(update_lock);
+static DEFINE_RAW_SPINLOCK(update_lock);
struct ucode_cpu_info ucode_cpu_info[NR_CPUS];
struct ucode_cpu_info ucode_cpu_info[NR_CPUS];
if (__wait_for_cpus(&late_cpus_in, NSEC_PER_SEC))
return -1;
if (__wait_for_cpus(&late_cpus_in, NSEC_PER_SEC))
return -1;
- spin_lock(&update_lock);
+ raw_spin_lock(&update_lock);
apply_microcode_local(&err);
apply_microcode_local(&err);
- spin_unlock(&update_lock);
+ raw_spin_unlock(&update_lock);
/* siblings return UCODE_OK because their engine got updated already */
if (err > UCODE_NFOUND) {
/* siblings return UCODE_OK because their engine got updated already */
if (err > UCODE_NFOUND) {