website-struct

Struct: smp_ops

Status

Regular

• In 4.4: ✅

  struct smp_ops {
      void (*smp_prepare_boot_cpu)();
      void (*smp_prepare_cpus)(unsigned int);
      void (*smp_cpus_done)(unsigned int);
      void (*stop_other_cpus)(int);
      void (*smp_send_reschedule)(int);
      int (*cpu_up)(unsigned int, struct task_struct *);
      int (*cpu_disable)();
      void (*cpu_die)(unsigned int);
      void (*play_dead)();
      void (*send_call_func_ipi)(const struct cpumask *);
      void (*send_call_func_single_ipi)(int);
  };
  

• In 4.8: ✅

  struct smp_ops {
      void (*smp_prepare_boot_cpu)();
      void (*smp_prepare_cpus)(unsigned int);
      void (*smp_cpus_done)(unsigned int);
      void (*stop_other_cpus)(int);
      void (*smp_send_reschedule)(int);
      int (*cpu_up)(unsigned int, struct task_struct *);
      int (*cpu_disable)();
      void (*cpu_die)(unsigned int);
      void (*play_dead)();
      void (*send_call_func_ipi)(const struct cpumask *);
      void (*send_call_func_single_ipi)(int);
  };
  

• In 4.10: ✅

  struct smp_ops {
      void (*smp_prepare_boot_cpu)();
      void (*smp_prepare_cpus)(unsigned int);
      void (*smp_cpus_done)(unsigned int);
      void (*stop_other_cpus)(int);
      void (*crash_stop_other_cpus)();
      void (*smp_send_reschedule)(int);
      int (*cpu_up)(unsigned int, struct task_struct *);
      int (*cpu_disable)();
      void (*cpu_die)(unsigned int);
      void (*play_dead)();
      void (*send_call_func_ipi)(const struct cpumask *);
      void (*send_call_func_single_ipi)(int);
  };
  

• In 4.13: ✅

  struct smp_ops {
      void (*smp_prepare_boot_cpu)();
      void (*smp_prepare_cpus)(unsigned int);
      void (*smp_cpus_done)(unsigned int);
      void (*stop_other_cpus)(int);
      void (*crash_stop_other_cpus)();
      void (*smp_send_reschedule)(int);
      int (*cpu_up)(unsigned int, struct task_struct *);
      int (*cpu_disable)();
      void (*cpu_die)(unsigned int);
      void (*play_dead)();
      void (*send_call_func_ipi)(const struct cpumask *);
      void (*send_call_func_single_ipi)(int);
  };
  

• In 4.15: ✅

  struct smp_ops {
      void (*smp_prepare_boot_cpu)();
      void (*smp_prepare_cpus)(unsigned int);
      void (*smp_cpus_done)(unsigned int);
      void (*stop_other_cpus)(int);
      void (*crash_stop_other_cpus)();
      void (*smp_send_reschedule)(int);
      int (*cpu_up)(unsigned int, struct task_struct *);
      int (*cpu_disable)();
      void (*cpu_die)(unsigned int);
      void (*play_dead)();
      void (*send_call_func_ipi)(const struct cpumask *);
      void (*send_call_func_single_ipi)(int);
  };
  

• In 4.18: ✅

  struct smp_ops {
      void (*smp_prepare_boot_cpu)();
      void (*smp_prepare_cpus)(unsigned int);
      void (*smp_cpus_done)(unsigned int);
      void (*stop_other_cpus)(int);
      void (*crash_stop_other_cpus)();
      void (*smp_send_reschedule)(int);
      int (*cpu_up)(unsigned int, struct task_struct *);
      int (*cpu_disable)();
      void (*cpu_die)(unsigned int);
      void (*play_dead)();
      void (*send_call_func_ipi)(const struct cpumask *);
      void (*send_call_func_single_ipi)(int);
  };
  

• In 5.0: ✅

  struct smp_ops {
      void (*smp_prepare_boot_cpu)();
      void (*smp_prepare_cpus)(unsigned int);
      void (*smp_cpus_done)(unsigned int);
      void (*stop_other_cpus)(int);
      void (*crash_stop_other_cpus)();
      void (*smp_send_reschedule)(int);
      int (*cpu_up)(unsigned int, struct task_struct *);
      int (*cpu_disable)();
      void (*cpu_die)(unsigned int);
      void (*play_dead)();
      void (*send_call_func_ipi)(const struct cpumask *);
      void (*send_call_func_single_ipi)(int);
  };
  

• In 5.3: ✅

  struct smp_ops {
      void (*smp_prepare_boot_cpu)();
      void (*smp_prepare_cpus)(unsigned int);
      void (*smp_cpus_done)(unsigned int);
      void (*stop_other_cpus)(int);
      void (*crash_stop_other_cpus)();
      void (*smp_send_reschedule)(int);
      int (*cpu_up)(unsigned int, struct task_struct *);
      int (*cpu_disable)();
      void (*cpu_die)(unsigned int);
      void (*play_dead)();
      void (*send_call_func_ipi)(const struct cpumask *);
      void (*send_call_func_single_ipi)(int);
  };
  

• In 5.4: ✅

  struct smp_ops {
      void (*smp_prepare_boot_cpu)();
      void (*smp_prepare_cpus)(unsigned int);
      void (*smp_cpus_done)(unsigned int);
      void (*stop_other_cpus)(int);
      void (*crash_stop_other_cpus)();
      void (*smp_send_reschedule)(int);
      int (*cpu_up)(unsigned int, struct task_struct *);
      int (*cpu_disable)();
      void (*cpu_die)(unsigned int);
      void (*play_dead)();
      void (*send_call_func_ipi)(const struct cpumask *);
      void (*send_call_func_single_ipi)(int);
  };
  

• In 5.8: ✅

  struct smp_ops {
      void (*smp_prepare_boot_cpu)();
      void (*smp_prepare_cpus)(unsigned int);
      void (*smp_cpus_done)(unsigned int);
      void (*stop_other_cpus)(int);
      void (*crash_stop_other_cpus)();
      void (*smp_send_reschedule)(int);
      int (*cpu_up)(unsigned int, struct task_struct *);
      int (*cpu_disable)();
      void (*cpu_die)(unsigned int);
      void (*play_dead)();
      void (*send_call_func_ipi)(const struct cpumask *);
      void (*send_call_func_single_ipi)(int);
  };
  

• In 5.11: ✅

  struct smp_ops {
      void (*smp_prepare_boot_cpu)();
      void (*smp_prepare_cpus)(unsigned int);
      void (*smp_cpus_done)(unsigned int);
      void (*stop_other_cpus)(int);
      void (*crash_stop_other_cpus)();
      void (*smp_send_reschedule)(int);
      int (*cpu_up)(unsigned int, struct task_struct *);
      int (*cpu_disable)();
      void (*cpu_die)(unsigned int);
      void (*play_dead)();
      void (*send_call_func_ipi)(const struct cpumask *);
      void (*send_call_func_single_ipi)(int);
  };
  

• In 5.13: ✅

  struct smp_ops {
      void (*smp_prepare_boot_cpu)();
      void (*smp_prepare_cpus)(unsigned int);
      void (*smp_cpus_done)(unsigned int);
      void (*stop_other_cpus)(int);
      void (*crash_stop_other_cpus)();
      void (*smp_send_reschedule)(int);
      int (*cpu_up)(unsigned int, struct task_struct *);
      int (*cpu_disable)();
      void (*cpu_die)(unsigned int);
      void (*play_dead)();
      void (*send_call_func_ipi)(const struct cpumask *);
      void (*send_call_func_single_ipi)(int);
  };
  

• In 5.15: ✅

  struct smp_ops {
      void (*smp_prepare_boot_cpu)();
      void (*smp_prepare_cpus)(unsigned int);
      void (*smp_cpus_done)(unsigned int);
      void (*stop_other_cpus)(int);
      void (*crash_stop_other_cpus)();
      void (*smp_send_reschedule)(int);
      int (*cpu_up)(unsigned int, struct task_struct *);
      int (*cpu_disable)();
      void (*cpu_die)(unsigned int);
      void (*play_dead)();
      void (*send_call_func_ipi)(const struct cpumask *);
      void (*send_call_func_single_ipi)(int);
  };
  

• In 5.19: ✅

  struct smp_ops {
      void (*smp_prepare_boot_cpu)();
      void (*smp_prepare_cpus)(unsigned int);
      void (*smp_cpus_done)(unsigned int);
      void (*stop_other_cpus)(int);
      void (*crash_stop_other_cpus)();
      void (*smp_send_reschedule)(int);
      int (*cpu_up)(unsigned int, struct task_struct *);
      int (*cpu_disable)();
      void (*cpu_die)(unsigned int);
      void (*play_dead)();
      void (*send_call_func_ipi)(const struct cpumask *);
      void (*send_call_func_single_ipi)(int);
  };
  

• In 6.2: ✅

  struct smp_ops {
      void (*smp_prepare_boot_cpu)();
      void (*smp_prepare_cpus)(unsigned int);
      void (*smp_cpus_done)(unsigned int);
      void (*stop_other_cpus)(int);
      void (*crash_stop_other_cpus)();
      void (*smp_send_reschedule)(int);
      int (*cpu_up)(unsigned int, struct task_struct *);
      int (*cpu_disable)();
      void (*cpu_die)(unsigned int);
      void (*play_dead)();
      void (*send_call_func_ipi)(const struct cpumask *);
      void (*send_call_func_single_ipi)(int);
  };
  

• In 6.5: ✅

  struct smp_ops {
      void (*smp_prepare_boot_cpu)();
      void (*smp_prepare_cpus)(unsigned int);
      void (*smp_cpus_done)(unsigned int);
      void (*stop_other_cpus)(int);
      void (*crash_stop_other_cpus)();
      void (*smp_send_reschedule)(int);
      void (*cleanup_dead_cpu)(unsigned int);
      void (*poll_sync_state)();
      int (*kick_ap_alive)(unsigned int, struct task_struct *);
      int (*cpu_disable)();
      void (*cpu_die)(unsigned int);
      void (*play_dead)();
      void (*send_call_func_ipi)(const struct cpumask *);
      void (*send_call_func_single_ipi)(int);
  };
  

• In 6.8: ✅

  struct smp_ops {
      void (*smp_prepare_boot_cpu)();
      void (*smp_prepare_cpus)(unsigned int);
      void (*smp_cpus_done)(unsigned int);
      void (*stop_other_cpus)(int);
      void (*crash_stop_other_cpus)();
      void (*smp_send_reschedule)(int);
      void (*cleanup_dead_cpu)(unsigned int);
      void (*poll_sync_state)();
      int (*kick_ap_alive)(unsigned int, struct task_struct *);
      int (*cpu_disable)();
      void (*cpu_die)(unsigned int);
      void (*play_dead)();
      void (*send_call_func_ipi)(const struct cpumask *);
      void (*send_call_func_single_ipi)(int);
  };
  

Arch

• In arm64: Absent ⚠️
• In armhf: Absent ⚠️
• In ppc64el: Absent ⚠️
• In riscv64: Absent ⚠️

Flavor

• In aws: ✅

  struct smp_ops {
      void (*smp_prepare_boot_cpu)();
      void (*smp_prepare_cpus)(unsigned int);
      void (*smp_cpus_done)(unsigned int);
      void (*stop_other_cpus)(int);
      void (*crash_stop_other_cpus)();
      void (*smp_send_reschedule)(int);
      int (*cpu_up)(unsigned int, struct task_struct *);
      int (*cpu_disable)();
      void (*cpu_die)(unsigned int);
      void (*play_dead)();
      void (*send_call_func_ipi)(const struct cpumask *);
      void (*send_call_func_single_ipi)(int);
  };
  

• In azure: ✅

  struct smp_ops {
      void (*smp_prepare_boot_cpu)();
      void (*smp_prepare_cpus)(unsigned int);
      void (*smp_cpus_done)(unsigned int);
      void (*stop_other_cpus)(int);
      void (*crash_stop_other_cpus)();
      void (*smp_send_reschedule)(int);
      int (*cpu_up)(unsigned int, struct task_struct *);
      int (*cpu_disable)();
      void (*cpu_die)(unsigned int);
      void (*play_dead)();
      void (*send_call_func_ipi)(const struct cpumask *);
      void (*send_call_func_single_ipi)(int);
  };
  

• In gcp: ✅

  struct smp_ops {
      void (*smp_prepare_boot_cpu)();
      void (*smp_prepare_cpus)(unsigned int);
      void (*smp_cpus_done)(unsigned int);
      void (*stop_other_cpus)(int);
      void (*crash_stop_other_cpus)();
      void (*smp_send_reschedule)(int);
      int (*cpu_up)(unsigned int, struct task_struct *);
      int (*cpu_disable)();
      void (*cpu_die)(unsigned int);
      void (*play_dead)();
      void (*send_call_func_ipi)(const struct cpumask *);
      void (*send_call_func_single_ipi)(int);
  };
  

• In lowlatency: ✅

  struct smp_ops {
      void (*smp_prepare_boot_cpu)();
      void (*smp_prepare_cpus)(unsigned int);
      void (*smp_cpus_done)(unsigned int);
      void (*stop_other_cpus)(int);
      void (*crash_stop_other_cpus)();
      void (*smp_send_reschedule)(int);
      int (*cpu_up)(unsigned int, struct task_struct *);
      int (*cpu_disable)();
      void (*cpu_die)(unsigned int);
      void (*play_dead)();
      void (*send_call_func_ipi)(const struct cpumask *);
      void (*send_call_func_single_ipi)(int);
  };
  

Differences

Regular

• No changes between 4.4 and 4.8 ✅
• Changed between 4.8 and 4.10 ⚠️

  • Field added. void (*crash_stop_other_cpus)()
• No changes between 4.10 and 4.13 ✅
• No changes between 4.13 and 4.15 ✅
• No changes between 4.15 and 4.18 ✅
• No changes between 4.18 and 5.0 ✅
• No changes between 5.0 and 5.3 ✅
• No changes between 5.3 and 5.4 ✅
• No changes between 5.4 and 5.8 ✅
• No changes between 5.8 and 5.11 ✅
• No changes between 5.11 and 5.13 ✅
• No changes between 5.13 and 5.15 ✅
• No changes between 5.15 and 5.19 ✅
• No changes between 5.19 and 6.2 ✅
• Changed between 6.2 and 6.5 ⚠️

  • Field added. void (*cleanup_dead_cpu)(unsigned int)
  • Field added. void (*poll_sync_state)()
  • Field added. int (*kick_ap_alive)(unsigned int, struct task_struct *)
  • Field removed. int (*cpu_up)(unsigned int, struct task_struct *)
• No changes between 6.5 and 6.8 ✅

Arch

Flavor

• No changes between generic and aws ✅
• No changes between generic and azure ✅
• No changes between generic and gcp ✅
• No changes between generic and lowlatency ✅