diff options
Diffstat (limited to 'arch/arm64/kernel/smp.c')
| -rw-r--r-- | arch/arm64/kernel/smp.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index cb87234cfcf2..9b1036570586 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -21,7 +21,9 @@ #include <linux/delay.h> #include <linux/init.h> #include <linux/spinlock.h> -#include <linux/sched.h> +#include <linux/sched/mm.h> +#include <linux/sched/hotplug.h> +#include <linux/sched/task_stack.h> #include <linux/interrupt.h> #include <linux/cache.h> #include <linux/profile.h> @@ -222,7 +224,7 @@ asmlinkage void secondary_start_kernel(void) * All kernel threads share the same mm context; grab a * reference and switch to it. */ - atomic_inc(&mm->mm_count); + mmgrab(mm); current->active_mm = mm; /* @@ -603,9 +605,9 @@ acpi_parse_gic_cpu_interface(struct acpi_subtable_header *header, */ static void __init of_parse_and_init_cpus(void) { - struct device_node *dn = NULL; + struct device_node *dn; - while ((dn = of_find_node_by_type(dn, "cpu"))) { + for_each_node_by_type(dn, "cpu") { u64 hwid = of_get_cpu_mpidr(dn); if (hwid == INVALID_HWID) @@ -942,7 +944,7 @@ static bool have_cpu_die(void) #ifdef CONFIG_HOTPLUG_CPU int any_cpu = raw_smp_processor_id(); - if (cpu_ops[any_cpu]->cpu_die) + if (cpu_ops[any_cpu] && cpu_ops[any_cpu]->cpu_die) return true; #endif return false; |