DepSurf

Struct: worker_pool

Status

Regular

• In 4.4: ✅

  struct worker_pool {
      spinlock_t lock;
      int cpu;
      int node;
      int id;
      unsigned int flags;
      struct list_head worklist;
      int nr_workers;
      int nr_idle;
      struct list_head idle_list;
      struct timer_list idle_timer;
      struct timer_list mayday_timer;
      struct hlist_head busy_hash[64];
      struct mutex manager_arb;
      struct worker *manager;
      struct mutex attach_mutex;
      struct list_head workers;
      struct completion *detach_completion;
      struct ida worker_ida;
      struct workqueue_attrs *attrs;
      struct hlist_node hash_node;
      int refcnt;
      atomic_t nr_running;
      struct callback_head rcu;
  };
  

• In 4.8: ✅

  struct worker_pool {
      spinlock_t lock;
      int cpu;
      int node;
      int id;
      unsigned int flags;
      long unsigned int watchdog_ts;
      struct list_head worklist;
      int nr_workers;
      int nr_idle;
      struct list_head idle_list;
      struct timer_list idle_timer;
      struct timer_list mayday_timer;
      struct hlist_head busy_hash[64];
      struct mutex manager_arb;
      struct worker *manager;
      struct mutex attach_mutex;
      struct list_head workers;
      struct completion *detach_completion;
      struct ida worker_ida;
      struct workqueue_attrs *attrs;
      struct hlist_node hash_node;
      int refcnt;
      atomic_t nr_running;
      struct callback_head rcu;
  };
  

• In 4.10: ✅

  struct worker_pool {
      spinlock_t lock;
      int cpu;
      int node;
      int id;
      unsigned int flags;
      long unsigned int watchdog_ts;
      struct list_head worklist;
      int nr_workers;
      int nr_idle;
      struct list_head idle_list;
      struct timer_list idle_timer;
      struct timer_list mayday_timer;
      struct hlist_head busy_hash[64];
      struct mutex manager_arb;
      struct worker *manager;
      struct mutex attach_mutex;
      struct list_head workers;
      struct completion *detach_completion;
      struct ida worker_ida;
      struct workqueue_attrs *attrs;
      struct hlist_node hash_node;
      int refcnt;
      atomic_t nr_running;
      struct callback_head rcu;
  };
  

• In 4.13: ✅

  struct worker_pool {
      spinlock_t lock;
      int cpu;
      int node;
      int id;
      unsigned int flags;
      long unsigned int watchdog_ts;
      struct list_head worklist;
      int nr_workers;
      int nr_idle;
      struct list_head idle_list;
      struct timer_list idle_timer;
      struct timer_list mayday_timer;
      struct hlist_head busy_hash[64];
      struct mutex manager_arb;
      struct worker *manager;
      struct mutex attach_mutex;
      struct list_head workers;
      struct completion *detach_completion;
      struct ida worker_ida;
      struct workqueue_attrs *attrs;
      struct hlist_node hash_node;
      int refcnt;
      atomic_t nr_running;
      struct callback_head rcu;
  };
  

• In 4.15: ✅

  struct worker_pool {
      spinlock_t lock;
      int cpu;
      int node;
      int id;
      unsigned int flags;
      long unsigned int watchdog_ts;
      struct list_head worklist;
      int nr_workers;
      int nr_idle;
      struct list_head idle_list;
      struct timer_list idle_timer;
      struct timer_list mayday_timer;
      struct hlist_head busy_hash[64];
      struct worker *manager;
      struct mutex attach_mutex;
      struct list_head workers;
      struct completion *detach_completion;
      struct ida worker_ida;
      struct workqueue_attrs *attrs;
      struct hlist_node hash_node;
      int refcnt;
      atomic_t nr_running;
      struct callback_head rcu;
  };
  

• In 4.18: ✅

  struct worker_pool {
      spinlock_t lock;
      int cpu;
      int node;
      int id;
      unsigned int flags;
      long unsigned int watchdog_ts;
      struct list_head worklist;
      int nr_workers;
      int nr_idle;
      struct list_head idle_list;
      struct timer_list idle_timer;
      struct timer_list mayday_timer;
      struct hlist_head busy_hash[64];
      struct worker *manager;
      struct list_head workers;
      struct completion *detach_completion;
      struct ida worker_ida;
      struct workqueue_attrs *attrs;
      struct hlist_node hash_node;
      int refcnt;
      atomic_t nr_running;
      struct callback_head rcu;
  };
  

• In 5.0: ✅

  struct worker_pool {
      spinlock_t lock;
      int cpu;
      int node;
      int id;
      unsigned int flags;
      long unsigned int watchdog_ts;
      struct list_head worklist;
      int nr_workers;
      int nr_idle;
      struct list_head idle_list;
      struct timer_list idle_timer;
      struct timer_list mayday_timer;
      struct hlist_head busy_hash[64];
      struct worker *manager;
      struct list_head workers;
      struct completion *detach_completion;
      struct ida worker_ida;
      struct workqueue_attrs *attrs;
      struct hlist_node hash_node;
      int refcnt;
      atomic_t nr_running;
      struct callback_head rcu;
  };
  

• In 5.3: ✅

  struct worker_pool {
      spinlock_t lock;
      int cpu;
      int node;
      int id;
      unsigned int flags;
      long unsigned int watchdog_ts;
      struct list_head worklist;
      int nr_workers;
      int nr_idle;
      struct list_head idle_list;
      struct timer_list idle_timer;
      struct timer_list mayday_timer;
      struct hlist_head busy_hash[64];
      struct worker *manager;
      struct list_head workers;
      struct completion *detach_completion;
      struct ida worker_ida;
      struct workqueue_attrs *attrs;
      struct hlist_node hash_node;
      int refcnt;
      atomic_t nr_running;
      struct callback_head rcu;
  };
  

• In 5.4: ✅

  struct worker_pool {
      spinlock_t lock;
      int cpu;
      int node;
      int id;
      unsigned int flags;
      long unsigned int watchdog_ts;
      struct list_head worklist;
      int nr_workers;
      int nr_idle;
      struct list_head idle_list;
      struct timer_list idle_timer;
      struct timer_list mayday_timer;
      struct hlist_head busy_hash[64];
      struct worker *manager;
      struct list_head workers;
      struct completion *detach_completion;
      struct ida worker_ida;
      struct workqueue_attrs *attrs;
      struct hlist_node hash_node;
      int refcnt;
      atomic_t nr_running;
      struct callback_head rcu;
  };
  

• In 5.8: ✅

  struct worker_pool {
      raw_spinlock_t lock;
      int cpu;
      int node;
      int id;
      unsigned int flags;
      long unsigned int watchdog_ts;
      struct list_head worklist;
      int nr_workers;
      int nr_idle;
      struct list_head idle_list;
      struct timer_list idle_timer;
      struct timer_list mayday_timer;
      struct hlist_head busy_hash[64];
      struct worker *manager;
      struct list_head workers;
      struct completion *detach_completion;
      struct ida worker_ida;
      struct workqueue_attrs *attrs;
      struct hlist_node hash_node;
      int refcnt;
      atomic_t nr_running;
      struct callback_head rcu;
  };
  

• In 5.11: ✅

  struct worker_pool {
      raw_spinlock_t lock;
      int cpu;
      int node;
      int id;
      unsigned int flags;
      long unsigned int watchdog_ts;
      struct list_head worklist;
      int nr_workers;
      int nr_idle;
      struct list_head idle_list;
      struct timer_list idle_timer;
      struct timer_list mayday_timer;
      struct hlist_head busy_hash[64];
      struct worker *manager;
      struct list_head workers;
      struct completion *detach_completion;
      struct ida worker_ida;
      struct workqueue_attrs *attrs;
      struct hlist_node hash_node;
      int refcnt;
      atomic_t nr_running;
      struct callback_head rcu;
  };
  

• In 5.13: ✅

  struct worker_pool {
      raw_spinlock_t lock;
      int cpu;
      int node;
      int id;
      unsigned int flags;
      long unsigned int watchdog_ts;
      struct list_head worklist;
      int nr_workers;
      int nr_idle;
      struct list_head idle_list;
      struct timer_list idle_timer;
      struct timer_list mayday_timer;
      struct hlist_head busy_hash[64];
      struct worker *manager;
      struct list_head workers;
      struct completion *detach_completion;
      struct ida worker_ida;
      struct workqueue_attrs *attrs;
      struct hlist_node hash_node;
      int refcnt;
      atomic_t nr_running;
      struct callback_head rcu;
  };
  

• In 5.15: ✅

  struct worker_pool {
      raw_spinlock_t lock;
      int cpu;
      int node;
      int id;
      unsigned int flags;
      long unsigned int watchdog_ts;
      struct list_head worklist;
      int nr_workers;
      int nr_idle;
      struct list_head idle_list;
      struct timer_list idle_timer;
      struct timer_list mayday_timer;
      struct hlist_head busy_hash[64];
      struct worker *manager;
      struct list_head workers;
      struct completion *detach_completion;
      struct ida worker_ida;
      struct workqueue_attrs *attrs;
      struct hlist_node hash_node;
      int refcnt;
      atomic_t nr_running;
      struct callback_head rcu;
  };
  

• In 5.19: ✅

  struct worker_pool {
      raw_spinlock_t lock;
      int cpu;
      int node;
      int id;
      unsigned int flags;
      long unsigned int watchdog_ts;
      int nr_running;
      struct list_head worklist;
      int nr_workers;
      int nr_idle;
      struct list_head idle_list;
      struct timer_list idle_timer;
      struct timer_list mayday_timer;
      struct hlist_head busy_hash[64];
      struct worker *manager;
      struct list_head workers;
      struct completion *detach_completion;
      struct ida worker_ida;
      struct workqueue_attrs *attrs;
      struct hlist_node hash_node;
      int refcnt;
      struct callback_head rcu;
  };
  

• In 6.2: ✅

  struct worker_pool {
      raw_spinlock_t lock;
      int cpu;
      int node;
      int id;
      unsigned int flags;
      long unsigned int watchdog_ts;
      int nr_running;
      struct list_head worklist;
      int nr_workers;
      int nr_idle;
      struct list_head idle_list;
      struct timer_list idle_timer;
      struct timer_list mayday_timer;
      struct hlist_head busy_hash[64];
      struct worker *manager;
      struct list_head workers;
      struct completion *detach_completion;
      struct ida worker_ida;
      struct workqueue_attrs *attrs;
      struct hlist_node hash_node;
      int refcnt;
      struct callback_head rcu;
  };
  

• In 6.5: ✅

  struct worker_pool {
      raw_spinlock_t lock;
      int cpu;
      int node;
      int id;
      unsigned int flags;
      long unsigned int watchdog_ts;
      bool cpu_stall;
      int nr_running;
      struct list_head worklist;
      int nr_workers;
      int nr_idle;
      struct list_head idle_list;
      struct timer_list idle_timer;
      struct work_struct idle_cull_work;
      struct timer_list mayday_timer;
      struct hlist_head busy_hash[64];
      struct worker *manager;
      struct list_head workers;
      struct list_head dying_workers;
      struct completion *detach_completion;
      struct ida worker_ida;
      struct workqueue_attrs *attrs;
      struct hlist_node hash_node;
      int refcnt;
      struct callback_head rcu;
  };
  

• In 6.8: ✅

  struct worker_pool {
      raw_spinlock_t lock;
      int cpu;
      int node;
      int id;
      unsigned int flags;
      long unsigned int watchdog_ts;
      bool cpu_stall;
      int nr_running;
      struct list_head worklist;
      int nr_workers;
      int nr_idle;
      struct list_head idle_list;
      struct timer_list idle_timer;
      struct work_struct idle_cull_work;
      struct timer_list mayday_timer;
      struct hlist_head busy_hash[64];
      struct worker *manager;
      struct list_head workers;
      struct list_head dying_workers;
      struct completion *detach_completion;
      struct ida worker_ida;
      struct workqueue_attrs *attrs;
      struct hlist_node hash_node;
      int refcnt;
      struct callback_head rcu;
  };
  

Arch

• In arm64: ✅

  struct worker_pool {
      spinlock_t lock;
      int cpu;
      int node;
      int id;
      unsigned int flags;
      long unsigned int watchdog_ts;
      struct list_head worklist;
      int nr_workers;
      int nr_idle;
      struct list_head idle_list;
      struct timer_list idle_timer;
      struct timer_list mayday_timer;
      struct hlist_head busy_hash[64];
      struct worker *manager;
      struct list_head workers;
      struct completion *detach_completion;
      struct ida worker_ida;
      struct workqueue_attrs *attrs;
      struct hlist_node hash_node;
      int refcnt;
      atomic_t nr_running;
      struct callback_head rcu;
  };
  

• In armhf: ✅

  struct worker_pool {
      spinlock_t lock;
      int cpu;
      int node;
      int id;
      unsigned int flags;
      long unsigned int watchdog_ts;
      struct list_head worklist;
      int nr_workers;
      int nr_idle;
      struct list_head idle_list;
      struct timer_list idle_timer;
      struct timer_list mayday_timer;
      struct hlist_head busy_hash[64];
      struct worker *manager;
      struct list_head workers;
      struct completion *detach_completion;
      struct ida worker_ida;
      struct workqueue_attrs *attrs;
      struct hlist_node hash_node;
      int refcnt;
      atomic_t nr_running;
      struct callback_head rcu;
  };
  

• In ppc64el: ✅

  struct worker_pool {
      spinlock_t lock;
      int cpu;
      int node;
      int id;
      unsigned int flags;
      long unsigned int watchdog_ts;
      struct list_head worklist;
      int nr_workers;
      int nr_idle;
      struct list_head idle_list;
      struct timer_list idle_timer;
      struct timer_list mayday_timer;
      struct hlist_head busy_hash[64];
      struct worker *manager;
      struct list_head workers;
      struct completion *detach_completion;
      struct ida worker_ida;
      struct workqueue_attrs *attrs;
      struct hlist_node hash_node;
      int refcnt;
      atomic_t nr_running;
      struct callback_head rcu;
  };
  

• In riscv64: ✅

  struct worker_pool {
      spinlock_t lock;
      int cpu;
      int node;
      int id;
      unsigned int flags;
      long unsigned int watchdog_ts;
      struct list_head worklist;
      int nr_workers;
      int nr_idle;
      struct list_head idle_list;
      struct timer_list idle_timer;
      struct timer_list mayday_timer;
      struct hlist_head busy_hash[64];
      struct worker *manager;
      struct list_head workers;
      struct completion *detach_completion;
      struct ida worker_ida;
      struct workqueue_attrs *attrs;
      struct hlist_node hash_node;
      int refcnt;
      atomic_t nr_running;
      struct callback_head rcu;
  };
  

Flavor

• In aws: ✅

  struct worker_pool {
      spinlock_t lock;
      int cpu;
      int node;
      int id;
      unsigned int flags;
      long unsigned int watchdog_ts;
      struct list_head worklist;
      int nr_workers;
      int nr_idle;
      struct list_head idle_list;
      struct timer_list idle_timer;
      struct timer_list mayday_timer;
      struct hlist_head busy_hash[64];
      struct worker *manager;
      struct list_head workers;
      struct completion *detach_completion;
      struct ida worker_ida;
      struct workqueue_attrs *attrs;
      struct hlist_node hash_node;
      int refcnt;
      atomic_t nr_running;
      struct callback_head rcu;
  };
  

• In azure: ✅

  struct worker_pool {
      spinlock_t lock;
      int cpu;
      int node;
      int id;
      unsigned int flags;
      long unsigned int watchdog_ts;
      struct list_head worklist;
      int nr_workers;
      int nr_idle;
      struct list_head idle_list;
      struct timer_list idle_timer;
      struct timer_list mayday_timer;
      struct hlist_head busy_hash[64];
      struct worker *manager;
      struct list_head workers;
      struct completion *detach_completion;
      struct ida worker_ida;
      struct workqueue_attrs *attrs;
      struct hlist_node hash_node;
      int refcnt;
      atomic_t nr_running;
      struct callback_head rcu;
  };
  

• In gcp: ✅

  struct worker_pool {
      spinlock_t lock;
      int cpu;
      int node;
      int id;
      unsigned int flags;
      long unsigned int watchdog_ts;
      struct list_head worklist;
      int nr_workers;
      int nr_idle;
      struct list_head idle_list;
      struct timer_list idle_timer;
      struct timer_list mayday_timer;
      struct hlist_head busy_hash[64];
      struct worker *manager;
      struct list_head workers;
      struct completion *detach_completion;
      struct ida worker_ida;
      struct workqueue_attrs *attrs;
      struct hlist_node hash_node;
      int refcnt;
      atomic_t nr_running;
      struct callback_head rcu;
  };
  

• In lowlatency: ✅

  struct worker_pool {
      spinlock_t lock;
      int cpu;
      int node;
      int id;
      unsigned int flags;
      long unsigned int watchdog_ts;
      struct list_head worklist;
      int nr_workers;
      int nr_idle;
      struct list_head idle_list;
      struct timer_list idle_timer;
      struct timer_list mayday_timer;
      struct hlist_head busy_hash[64];
      struct worker *manager;
      struct list_head workers;
      struct completion *detach_completion;
      struct ida worker_ida;
      struct workqueue_attrs *attrs;
      struct hlist_node hash_node;
      int refcnt;
      atomic_t nr_running;
      struct callback_head rcu;
  };
  

Differences

Regular

• Changed between 4.4 and 4.8 ⚠️

  • Field added. long unsigned int watchdog_ts
• No changes between 4.8 and 4.10 ✅
• No changes between 4.10 and 4.13 ✅
• Changed between 4.13 and 4.15 ⚠️

  • Field removed. struct mutex manager_arb
• Changed between 4.15 and 4.18 ⚠️

  • Field removed. struct mutex attach_mutex
• No changes between 4.18 and 5.0 ✅
• No changes between 5.0 and 5.3 ✅
• No changes between 5.3 and 5.4 ✅
• Changed between 5.4 and 5.8 ⚠️

  • Field type changed. spinlock_t lock ➡️ raw_spinlock_t lock
• No changes between 5.8 and 5.11 ✅
• No changes between 5.11 and 5.13 ✅
• No changes between 5.13 and 5.15 ✅
• Changed between 5.15 and 5.19 ⚠️

  • Field type changed. atomic_t nr_running ➡️ int nr_running
• No changes between 5.19 and 6.2 ✅
• Changed between 6.2 and 6.5 ⚠️

  • Field added. bool cpu_stall
  • Field added. struct work_struct idle_cull_work
  • Field added. struct list_head dying_workers
• No changes between 6.5 and 6.8 ✅

Arch

• No changes between amd64 and arm64 ✅
• No changes between amd64 and armhf ✅
• No changes between amd64 and ppc64el ✅
• No changes between amd64 and riscv64 ✅

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 ✅