website-struct

Struct: blkcg_gq

Status

Regular

• In 4.4: ✅

  struct blkcg_gq {
      struct request_queue *q;
      struct list_head q_node;
      struct hlist_node blkcg_node;
      struct blkcg *blkcg;
      struct bdi_writeback_congested *wb_congested;
      struct blkcg_gq *parent;
      struct request_list rl;
      atomic_t refcnt;
      bool online;
      struct blkg_rwstat stat_bytes;
      struct blkg_rwstat stat_ios;
      struct blkg_policy_data * pd[2];
      struct callback_head callback_head;
  };
  

• In 4.8: ✅

  struct blkcg_gq {
      struct request_queue *q;
      struct list_head q_node;
      struct hlist_node blkcg_node;
      struct blkcg *blkcg;
      struct bdi_writeback_congested *wb_congested;
      struct blkcg_gq *parent;
      struct request_list rl;
      atomic_t refcnt;
      bool online;
      struct blkg_rwstat stat_bytes;
      struct blkg_rwstat stat_ios;
      struct blkg_policy_data * pd[2];
      struct callback_head callback_head;
  };
  

• In 4.10: ✅

  struct blkcg_gq {
      struct request_queue *q;
      struct list_head q_node;
      struct hlist_node blkcg_node;
      struct blkcg *blkcg;
      struct bdi_writeback_congested *wb_congested;
      struct blkcg_gq *parent;
      struct request_list rl;
      atomic_t refcnt;
      bool online;
      struct blkg_rwstat stat_bytes;
      struct blkg_rwstat stat_ios;
      struct blkg_policy_data * pd[2];
      struct callback_head callback_head;
  };
  

• In 4.13: ✅

  struct blkcg_gq {
      struct request_queue *q;
      struct list_head q_node;
      struct hlist_node blkcg_node;
      struct blkcg *blkcg;
      struct bdi_writeback_congested *wb_congested;
      struct blkcg_gq *parent;
      struct request_list rl;
      atomic_t refcnt;
      bool online;
      struct blkg_rwstat stat_bytes;
      struct blkg_rwstat stat_ios;
      struct blkg_policy_data * pd[3];
      struct callback_head callback_head;
  };
  

• In 4.15: ✅

  struct blkcg_gq {
      struct request_queue *q;
      struct list_head q_node;
      struct hlist_node blkcg_node;
      struct blkcg *blkcg;
      struct bdi_writeback_congested *wb_congested;
      struct blkcg_gq *parent;
      struct request_list rl;
      atomic_t refcnt;
      bool online;
      struct blkg_rwstat stat_bytes;
      struct blkg_rwstat stat_ios;
      struct blkg_policy_data * pd[3];
      struct callback_head callback_head;
  };
  

• In 4.18: ✅

  struct blkcg_gq {
      struct request_queue *q;
      struct list_head q_node;
      struct hlist_node blkcg_node;
      struct blkcg *blkcg;
      struct bdi_writeback_congested *wb_congested;
      struct blkcg_gq *parent;
      struct request_list rl;
      atomic_t refcnt;
      bool online;
      struct blkg_rwstat stat_bytes;
      struct blkg_rwstat stat_ios;
      struct blkg_policy_data * pd[3];
      struct callback_head callback_head;
  };
  

• In 5.0: ✅

  struct blkcg_gq {
      struct request_queue *q;
      struct list_head q_node;
      struct hlist_node blkcg_node;
      struct blkcg *blkcg;
      struct bdi_writeback_congested *wb_congested;
      struct blkcg_gq *parent;
      struct percpu_ref refcnt;
      bool online;
      struct blkg_rwstat stat_bytes;
      struct blkg_rwstat stat_ios;
      struct blkg_policy_data * pd[5];
      struct callback_head callback_head;
      atomic_t use_delay;
      atomic64_t delay_nsec;
      atomic64_t delay_start;
      u64 last_delay;
      int last_use;
  };
  

• In 5.3: ✅

  struct blkcg_gq {
      struct request_queue *q;
      struct list_head q_node;
      struct hlist_node blkcg_node;
      struct blkcg *blkcg;
      struct bdi_writeback_congested *wb_congested;
      struct blkcg_gq *parent;
      struct percpu_ref refcnt;
      bool online;
      struct blkg_rwstat stat_bytes;
      struct blkg_rwstat stat_ios;
      struct blkg_policy_data * pd[5];
      spinlock_t async_bio_lock;
      struct bio_list async_bios;
      struct work_struct async_bio_work;
      atomic_t use_delay;
      atomic64_t delay_nsec;
      atomic64_t delay_start;
      u64 last_delay;
      int last_use;
      struct callback_head callback_head;
  };
  

• In 5.4: ✅

  struct blkcg_gq {
      struct request_queue *q;
      struct list_head q_node;
      struct hlist_node blkcg_node;
      struct blkcg *blkcg;
      struct bdi_writeback_congested *wb_congested;
      struct blkcg_gq *parent;
      struct percpu_ref refcnt;
      bool online;
      struct blkg_rwstat stat_bytes;
      struct blkg_rwstat stat_ios;
      struct blkg_policy_data * pd[5];
      spinlock_t async_bio_lock;
      struct bio_list async_bios;
      struct work_struct async_bio_work;
      atomic_t use_delay;
      atomic64_t delay_nsec;
      atomic64_t delay_start;
      u64 last_delay;
      int last_use;
      struct callback_head callback_head;
  };
  

• In 5.8: ✅

  struct blkcg_gq {
      struct request_queue *q;
      struct list_head q_node;
      struct hlist_node blkcg_node;
      struct blkcg *blkcg;
      struct bdi_writeback_congested *wb_congested;
      struct blkcg_gq *parent;
      struct percpu_ref refcnt;
      bool online;
      struct blkg_iostat_set *iostat_cpu;
      struct blkg_iostat_set iostat;
      struct blkg_policy_data * pd[5];
      spinlock_t async_bio_lock;
      struct bio_list async_bios;
      struct work_struct async_bio_work;
      atomic_t use_delay;
      atomic64_t delay_nsec;
      atomic64_t delay_start;
      u64 last_delay;
      int last_use;
      struct callback_head callback_head;
  };
  

• In 5.11: ✅

  struct blkcg_gq {
      struct request_queue *q;
      struct list_head q_node;
      struct hlist_node blkcg_node;
      struct blkcg *blkcg;
      struct blkcg_gq *parent;
      struct percpu_ref refcnt;
      bool online;
      struct blkg_iostat_set *iostat_cpu;
      struct blkg_iostat_set iostat;
      struct blkg_policy_data * pd[5];
      spinlock_t async_bio_lock;
      struct bio_list async_bios;
      struct work_struct async_bio_work;
      atomic_t use_delay;
      atomic64_t delay_nsec;
      atomic64_t delay_start;
      u64 last_delay;
      int last_use;
      struct callback_head callback_head;
  };
  

• In 5.13: ✅

  struct blkcg_gq {
      struct request_queue *q;
      struct list_head q_node;
      struct hlist_node blkcg_node;
      struct blkcg *blkcg;
      struct blkcg_gq *parent;
      struct percpu_ref refcnt;
      bool online;
      struct blkg_iostat_set *iostat_cpu;
      struct blkg_iostat_set iostat;
      struct blkg_policy_data * pd[5];
      spinlock_t async_bio_lock;
      struct bio_list async_bios;
      struct work_struct async_bio_work;
      atomic_t use_delay;
      atomic64_t delay_nsec;
      atomic64_t delay_start;
      u64 last_delay;
      int last_use;
      struct callback_head callback_head;
  };
  

• In 5.15: ✅

  struct blkcg_gq {
      struct request_queue *q;
      struct list_head q_node;
      struct hlist_node blkcg_node;
      struct blkcg *blkcg;
      struct blkcg_gq *parent;
      struct percpu_ref refcnt;
      bool online;
      struct blkg_iostat_set *iostat_cpu;
      struct blkg_iostat_set iostat;
      struct blkg_policy_data * pd[6];
      spinlock_t async_bio_lock;
      struct bio_list async_bios;
      struct work_struct async_bio_work;
      atomic_t use_delay;
      atomic64_t delay_nsec;
      atomic64_t delay_start;
      u64 last_delay;
      int last_use;
      struct callback_head callback_head;
  };
  

• In 5.19: ✅

  struct blkcg_gq {
      struct request_queue *q;
      struct list_head q_node;
      struct hlist_node blkcg_node;
      struct blkcg *blkcg;
      struct blkcg_gq *parent;
      struct percpu_ref refcnt;
      bool online;
      struct blkg_iostat_set *iostat_cpu;
      struct blkg_iostat_set iostat;
      struct blkg_policy_data * pd[6];
      spinlock_t async_bio_lock;
      struct bio_list async_bios;
      struct work_struct async_bio_work;
      struct work_struct free_work;
      atomic_t use_delay;
      atomic64_t delay_nsec;
      atomic64_t delay_start;
      u64 last_delay;
      int last_use;
      struct callback_head callback_head;
  };
  

• In 6.2: ✅

  struct blkcg_gq {
      struct request_queue *q;
      struct list_head q_node;
      struct hlist_node blkcg_node;
      struct blkcg *blkcg;
      struct blkcg_gq *parent;
      struct percpu_ref refcnt;
      bool online;
      struct blkg_iostat_set *iostat_cpu;
      struct blkg_iostat_set iostat;
      struct blkg_policy_data * pd[6];
      spinlock_t async_bio_lock;
      struct bio_list async_bios;
      struct work_struct async_bio_work;
      struct work_struct free_work;
      atomic_t use_delay;
      atomic64_t delay_nsec;
      atomic64_t delay_start;
      u64 last_delay;
      int last_use;
      struct callback_head callback_head;
  };
  

• In 6.5: ✅

  struct blkcg_gq {
      struct request_queue *q;
      struct list_head q_node;
      struct hlist_node blkcg_node;
      struct blkcg *blkcg;
      struct blkcg_gq *parent;
      struct percpu_ref refcnt;
      bool online;
      struct blkg_iostat_set *iostat_cpu;
      struct blkg_iostat_set iostat;
      struct blkg_policy_data * pd[6];
      spinlock_t async_bio_lock;
      struct bio_list async_bios;
      struct work_struct async_bio_work;
      struct work_struct free_work;
      atomic_t use_delay;
      atomic64_t delay_nsec;
      atomic64_t delay_start;
      u64 last_delay;
      int last_use;
      struct callback_head callback_head;
  };
  

• In 6.8: ✅

  struct blkcg_gq {
      struct request_queue *q;
      struct list_head q_node;
      struct hlist_node blkcg_node;
      struct blkcg *blkcg;
      struct blkcg_gq *parent;
      struct percpu_ref refcnt;
      bool online;
      struct blkg_iostat_set *iostat_cpu;
      struct blkg_iostat_set iostat;
      struct blkg_policy_data * pd[6];
      spinlock_t async_bio_lock;
      struct bio_list async_bios;
      struct work_struct async_bio_work;
      struct work_struct free_work;
      atomic_t use_delay;
      atomic64_t delay_nsec;
      atomic64_t delay_start;
      u64 last_delay;
      int last_use;
      struct callback_head callback_head;
  };
  

Arch

• In arm64: ✅

  struct blkcg_gq {
      struct request_queue *q;
      struct list_head q_node;
      struct hlist_node blkcg_node;
      struct blkcg *blkcg;
      struct bdi_writeback_congested *wb_congested;
      struct blkcg_gq *parent;
      struct percpu_ref refcnt;
      bool online;
      struct blkg_rwstat stat_bytes;
      struct blkg_rwstat stat_ios;
      struct blkg_policy_data * pd[5];
      spinlock_t async_bio_lock;
      struct bio_list async_bios;
      struct work_struct async_bio_work;
      atomic_t use_delay;
      atomic64_t delay_nsec;
      atomic64_t delay_start;
      u64 last_delay;
      int last_use;
      struct callback_head callback_head;
  };
  

• In armhf: ✅

  struct blkcg_gq {
      struct request_queue *q;
      struct list_head q_node;
      struct hlist_node blkcg_node;
      struct blkcg *blkcg;
      struct bdi_writeback_congested *wb_congested;
      struct blkcg_gq *parent;
      struct percpu_ref refcnt;
      bool online;
      struct blkg_rwstat stat_bytes;
      struct blkg_rwstat stat_ios;
      struct blkg_policy_data * pd[5];
      spinlock_t async_bio_lock;
      struct bio_list async_bios;
      struct work_struct async_bio_work;
      atomic_t use_delay;
      atomic64_t delay_nsec;
      atomic64_t delay_start;
      u64 last_delay;
      int last_use;
      struct callback_head callback_head;
  };
  

• In ppc64el: ✅

  struct blkcg_gq {
      struct request_queue *q;
      struct list_head q_node;
      struct hlist_node blkcg_node;
      struct blkcg *blkcg;
      struct bdi_writeback_congested *wb_congested;
      struct blkcg_gq *parent;
      struct percpu_ref refcnt;
      bool online;
      struct blkg_rwstat stat_bytes;
      struct blkg_rwstat stat_ios;
      struct blkg_policy_data * pd[5];
      spinlock_t async_bio_lock;
      struct bio_list async_bios;
      struct work_struct async_bio_work;
      atomic_t use_delay;
      atomic64_t delay_nsec;
      atomic64_t delay_start;
      u64 last_delay;
      int last_use;
      struct callback_head callback_head;
  };
  

• In riscv64: ✅

  struct blkcg_gq {
      struct request_queue *q;
      struct list_head q_node;
      struct hlist_node blkcg_node;
      struct blkcg *blkcg;
      struct bdi_writeback_congested *wb_congested;
      struct blkcg_gq *parent;
      struct percpu_ref refcnt;
      bool online;
      struct blkg_rwstat stat_bytes;
      struct blkg_rwstat stat_ios;
      struct blkg_policy_data * pd[5];
      spinlock_t async_bio_lock;
      struct bio_list async_bios;
      struct work_struct async_bio_work;
      atomic_t use_delay;
      atomic64_t delay_nsec;
      atomic64_t delay_start;
      u64 last_delay;
      int last_use;
      struct callback_head callback_head;
  };
  

Flavor

• In aws: ✅

  struct blkcg_gq {
      struct request_queue *q;
      struct list_head q_node;
      struct hlist_node blkcg_node;
      struct blkcg *blkcg;
      struct bdi_writeback_congested *wb_congested;
      struct blkcg_gq *parent;
      struct percpu_ref refcnt;
      bool online;
      struct blkg_rwstat stat_bytes;
      struct blkg_rwstat stat_ios;
      struct blkg_policy_data * pd[5];
      spinlock_t async_bio_lock;
      struct bio_list async_bios;
      struct work_struct async_bio_work;
      atomic_t use_delay;
      atomic64_t delay_nsec;
      atomic64_t delay_start;
      u64 last_delay;
      int last_use;
      struct callback_head callback_head;
  };
  

• In azure: ✅

  struct blkcg_gq {
      struct request_queue *q;
      struct list_head q_node;
      struct hlist_node blkcg_node;
      struct blkcg *blkcg;
      struct bdi_writeback_congested *wb_congested;
      struct blkcg_gq *parent;
      struct percpu_ref refcnt;
      bool online;
      struct blkg_rwstat stat_bytes;
      struct blkg_rwstat stat_ios;
      struct blkg_policy_data * pd[5];
      spinlock_t async_bio_lock;
      struct bio_list async_bios;
      struct work_struct async_bio_work;
      atomic_t use_delay;
      atomic64_t delay_nsec;
      atomic64_t delay_start;
      u64 last_delay;
      int last_use;
      struct callback_head callback_head;
  };
  

• In gcp: ✅

  struct blkcg_gq {
      struct request_queue *q;
      struct list_head q_node;
      struct hlist_node blkcg_node;
      struct blkcg *blkcg;
      struct bdi_writeback_congested *wb_congested;
      struct blkcg_gq *parent;
      struct percpu_ref refcnt;
      bool online;
      struct blkg_rwstat stat_bytes;
      struct blkg_rwstat stat_ios;
      struct blkg_policy_data * pd[5];
      spinlock_t async_bio_lock;
      struct bio_list async_bios;
      struct work_struct async_bio_work;
      atomic_t use_delay;
      atomic64_t delay_nsec;
      atomic64_t delay_start;
      u64 last_delay;
      int last_use;
      struct callback_head callback_head;
  };
  

• In lowlatency: ✅

  struct blkcg_gq {
      struct request_queue *q;
      struct list_head q_node;
      struct hlist_node blkcg_node;
      struct blkcg *blkcg;
      struct bdi_writeback_congested *wb_congested;
      struct blkcg_gq *parent;
      struct percpu_ref refcnt;
      bool online;
      struct blkg_rwstat stat_bytes;
      struct blkg_rwstat stat_ios;
      struct blkg_policy_data * pd[5];
      spinlock_t async_bio_lock;
      struct bio_list async_bios;
      struct work_struct async_bio_work;
      atomic_t use_delay;
      atomic64_t delay_nsec;
      atomic64_t delay_start;
      u64 last_delay;
      int last_use;
      struct callback_head callback_head;
  };
  

Differences

Regular

• No changes between 4.4 and 4.8 ✅
• No changes between 4.8 and 4.10 ✅
• Changed between 4.10 and 4.13 ⚠️

  • Field type changed. struct blkg_policy_data * pd[2] ➡️ struct blkg_policy_data * pd[3]
• No changes between 4.13 and 4.15 ✅
• No changes between 4.15 and 4.18 ✅
• Changed between 4.18 and 5.0 ⚠️

  • Field added. atomic_t use_delay
  • Field added. atomic64_t delay_nsec
  • Field added. atomic64_t delay_start
  • Field added. u64 last_delay
  • Field added. int last_use
  • Field removed. struct request_list rl
  • Field type changed. atomic_t refcnt ➡️ struct percpu_ref refcnt
  • Field type changed. struct blkg_policy_data * pd[3] ➡️ struct blkg_policy_data * pd[5]
• Changed between 5.0 and 5.3 ⚠️

  • Field added. spinlock_t async_bio_lock
  • Field added. struct bio_list async_bios
  • Field added. struct work_struct async_bio_work
• No changes between 5.3 and 5.4 ✅
• Changed between 5.4 and 5.8 ⚠️

  • Field added. struct blkg_iostat_set *iostat_cpu
  • Field added. struct blkg_iostat_set iostat
  • Field removed. struct blkg_rwstat stat_bytes
  • Field removed. struct blkg_rwstat stat_ios
• Changed between 5.8 and 5.11 ⚠️

  • Field removed. struct bdi_writeback_congested *wb_congested
• No changes between 5.11 and 5.13 ✅
• Changed between 5.13 and 5.15 ⚠️

  • Field type changed. struct blkg_policy_data * pd[5] ➡️ struct blkg_policy_data * pd[6]
• Changed between 5.15 and 5.19 ⚠️

  • Field added. struct work_struct free_work
• No changes between 5.19 and 6.2 ✅
• No changes between 6.2 and 6.5 ✅
• 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 ✅