website-struct

Struct: rq_wb

Status

Regular

• In 4.4: Absent ⚠️
• In 4.8: Absent ⚠️
• In 4.10: ✅

  struct rq_wb {
      unsigned int wb_background;
      unsigned int wb_normal;
      unsigned int wb_max;
      int scale_step;
      bool scaled_max;
      short int enable_state;
      unsigned int unknown_cnt;
      u64 win_nsec;
      u64 cur_win_nsec;
      struct timer_list window_timer;
      s64 sync_issue;
      void *sync_cookie;
      unsigned int wc;
      unsigned int queue_depth;
      long unsigned int last_issue;
      long unsigned int last_comp;
      long unsigned int min_lat_nsec;
      struct request_queue *queue;
      struct rq_wait rq_wait[2];
  };
  

• In 4.13: ✅

  struct rq_wb {
      unsigned int wb_background;
      unsigned int wb_normal;
      unsigned int wb_max;
      int scale_step;
      bool scaled_max;
      short int enable_state;
      unsigned int unknown_cnt;
      u64 win_nsec;
      u64 cur_win_nsec;
      struct blk_stat_callback *cb;
      s64 sync_issue;
      void *sync_cookie;
      unsigned int wc;
      unsigned int queue_depth;
      long unsigned int last_issue;
      long unsigned int last_comp;
      long unsigned int min_lat_nsec;
      struct request_queue *queue;
      struct rq_wait rq_wait[2];
  };
  

• In 4.15: ✅

  struct rq_wb {
      unsigned int wb_background;
      unsigned int wb_normal;
      unsigned int wb_max;
      int scale_step;
      bool scaled_max;
      short int enable_state;
      unsigned int unknown_cnt;
      u64 win_nsec;
      u64 cur_win_nsec;
      struct blk_stat_callback *cb;
      s64 sync_issue;
      void *sync_cookie;
      unsigned int wc;
      unsigned int queue_depth;
      long unsigned int last_issue;
      long unsigned int last_comp;
      long unsigned int min_lat_nsec;
      struct request_queue *queue;
      struct rq_wait rq_wait[2];
  };
  

• In 4.18: ✅

  struct rq_wb {
      unsigned int wb_background;
      unsigned int wb_normal;
      unsigned int wb_max;
      int scale_step;
      bool scaled_max;
      short int enable_state;
      unsigned int unknown_cnt;
      u64 win_nsec;
      u64 cur_win_nsec;
      struct blk_stat_callback *cb;
      u64 sync_issue;
      void *sync_cookie;
      unsigned int wc;
      unsigned int queue_depth;
      long unsigned int last_issue;
      long unsigned int last_comp;
      long unsigned int min_lat_nsec;
      struct request_queue *queue;
      struct rq_wait rq_wait[3];
  };
  

• In 5.0: ✅

  struct rq_wb {
      unsigned int wb_background;
      unsigned int wb_normal;
      short int enable_state;
      unsigned int unknown_cnt;
      u64 win_nsec;
      u64 cur_win_nsec;
      struct blk_stat_callback *cb;
      u64 sync_issue;
      void *sync_cookie;
      unsigned int wc;
      long unsigned int last_issue;
      long unsigned int last_comp;
      long unsigned int min_lat_nsec;
      struct rq_qos rqos;
      struct rq_wait rq_wait[3];
      struct rq_depth rq_depth;
  };
  

• In 5.3: ✅

  struct rq_wb {
      unsigned int wb_background;
      unsigned int wb_normal;
      short int enable_state;
      unsigned int unknown_cnt;
      u64 win_nsec;
      u64 cur_win_nsec;
      struct blk_stat_callback *cb;
      u64 sync_issue;
      void *sync_cookie;
      unsigned int wc;
      long unsigned int last_issue;
      long unsigned int last_comp;
      long unsigned int min_lat_nsec;
      struct rq_qos rqos;
      struct rq_wait rq_wait[3];
      struct rq_depth rq_depth;
  };
  

• In 5.4: ✅

  struct rq_wb {
      unsigned int wb_background;
      unsigned int wb_normal;
      short int enable_state;
      unsigned int unknown_cnt;
      u64 win_nsec;
      u64 cur_win_nsec;
      struct blk_stat_callback *cb;
      u64 sync_issue;
      void *sync_cookie;
      unsigned int wc;
      long unsigned int last_issue;
      long unsigned int last_comp;
      long unsigned int min_lat_nsec;
      struct rq_qos rqos;
      struct rq_wait rq_wait[3];
      struct rq_depth rq_depth;
  };
  

• In 5.8: ✅

  struct rq_wb {
      unsigned int wb_background;
      unsigned int wb_normal;
      short int enable_state;
      unsigned int unknown_cnt;
      u64 win_nsec;
      u64 cur_win_nsec;
      struct blk_stat_callback *cb;
      u64 sync_issue;
      void *sync_cookie;
      unsigned int wc;
      long unsigned int last_issue;
      long unsigned int last_comp;
      long unsigned int min_lat_nsec;
      struct rq_qos rqos;
      struct rq_wait rq_wait[3];
      struct rq_depth rq_depth;
  };
  

• In 5.11: ✅

  struct rq_wb {
      unsigned int wb_background;
      unsigned int wb_normal;
      short int enable_state;
      unsigned int unknown_cnt;
      u64 win_nsec;
      u64 cur_win_nsec;
      struct blk_stat_callback *cb;
      u64 sync_issue;
      void *sync_cookie;
      unsigned int wc;
      long unsigned int last_issue;
      long unsigned int last_comp;
      long unsigned int min_lat_nsec;
      struct rq_qos rqos;
      struct rq_wait rq_wait[3];
      struct rq_depth rq_depth;
  };
  

• In 5.13: ✅

  struct rq_wb {
      unsigned int wb_background;
      unsigned int wb_normal;
      short int enable_state;
      unsigned int unknown_cnt;
      u64 win_nsec;
      u64 cur_win_nsec;
      struct blk_stat_callback *cb;
      u64 sync_issue;
      void *sync_cookie;
      unsigned int wc;
      long unsigned int last_issue;
      long unsigned int last_comp;
      long unsigned int min_lat_nsec;
      struct rq_qos rqos;
      struct rq_wait rq_wait[3];
      struct rq_depth rq_depth;
  };
  

• In 5.15: ✅

  struct rq_wb {
      unsigned int wb_background;
      unsigned int wb_normal;
      short int enable_state;
      unsigned int unknown_cnt;
      u64 win_nsec;
      u64 cur_win_nsec;
      struct blk_stat_callback *cb;
      u64 sync_issue;
      void *sync_cookie;
      unsigned int wc;
      long unsigned int last_issue;
      long unsigned int last_comp;
      long unsigned int min_lat_nsec;
      struct rq_qos rqos;
      struct rq_wait rq_wait[3];
      struct rq_depth rq_depth;
  };
  

• In 5.19: ✅

  struct rq_wb {
      unsigned int wb_background;
      unsigned int wb_normal;
      short int enable_state;
      unsigned int unknown_cnt;
      u64 win_nsec;
      u64 cur_win_nsec;
      struct blk_stat_callback *cb;
      u64 sync_issue;
      void *sync_cookie;
      unsigned int wc;
      long unsigned int last_issue;
      long unsigned int last_comp;
      long unsigned int min_lat_nsec;
      struct rq_qos rqos;
      struct rq_wait rq_wait[3];
      struct rq_depth rq_depth;
  };
  

• In 6.2: ✅

  struct rq_wb {
      unsigned int wb_background;
      unsigned int wb_normal;
      short int enable_state;
      unsigned int unknown_cnt;
      u64 win_nsec;
      u64 cur_win_nsec;
      struct blk_stat_callback *cb;
      u64 sync_issue;
      void *sync_cookie;
      unsigned int wc;
      long unsigned int last_issue;
      long unsigned int last_comp;
      long unsigned int min_lat_nsec;
      struct rq_qos rqos;
      struct rq_wait rq_wait[3];
      struct rq_depth rq_depth;
  };
  

• In 6.5: ✅

  struct rq_wb {
      unsigned int wb_background;
      unsigned int wb_normal;
      short int enable_state;
      unsigned int unknown_cnt;
      u64 win_nsec;
      u64 cur_win_nsec;
      struct blk_stat_callback *cb;
      u64 sync_issue;
      void *sync_cookie;
      unsigned int wc;
      long unsigned int last_issue;
      long unsigned int last_comp;
      long unsigned int min_lat_nsec;
      struct rq_qos rqos;
      struct rq_wait rq_wait[3];
      struct rq_depth rq_depth;
  };
  

• In 6.8: ✅

  struct rq_wb {
      unsigned int wb_background;
      unsigned int wb_normal;
      short int enable_state;
      unsigned int unknown_cnt;
      u64 win_nsec;
      u64 cur_win_nsec;
      struct blk_stat_callback *cb;
      u64 sync_issue;
      void *sync_cookie;
      long unsigned int last_issue;
      long unsigned int last_comp;
      long unsigned int min_lat_nsec;
      struct rq_qos rqos;
      struct rq_wait rq_wait[3];
      struct rq_depth rq_depth;
  };
  

Arch

• In arm64: ✅

  struct rq_wb {
      unsigned int wb_background;
      unsigned int wb_normal;
      short int enable_state;
      unsigned int unknown_cnt;
      u64 win_nsec;
      u64 cur_win_nsec;
      struct blk_stat_callback *cb;
      u64 sync_issue;
      void *sync_cookie;
      unsigned int wc;
      long unsigned int last_issue;
      long unsigned int last_comp;
      long unsigned int min_lat_nsec;
      struct rq_qos rqos;
      struct rq_wait rq_wait[3];
      struct rq_depth rq_depth;
  };
  

• In armhf: ✅

  struct rq_wb {
      unsigned int wb_background;
      unsigned int wb_normal;
      short int enable_state;
      unsigned int unknown_cnt;
      u64 win_nsec;
      u64 cur_win_nsec;
      struct blk_stat_callback *cb;
      u64 sync_issue;
      void *sync_cookie;
      unsigned int wc;
      long unsigned int last_issue;
      long unsigned int last_comp;
      long unsigned int min_lat_nsec;
      struct rq_qos rqos;
      struct rq_wait rq_wait[3];
      struct rq_depth rq_depth;
  };
  

• In ppc64el: ✅

  struct rq_wb {
      unsigned int wb_background;
      unsigned int wb_normal;
      short int enable_state;
      unsigned int unknown_cnt;
      u64 win_nsec;
      u64 cur_win_nsec;
      struct blk_stat_callback *cb;
      u64 sync_issue;
      void *sync_cookie;
      unsigned int wc;
      long unsigned int last_issue;
      long unsigned int last_comp;
      long unsigned int min_lat_nsec;
      struct rq_qos rqos;
      struct rq_wait rq_wait[3];
      struct rq_depth rq_depth;
  };
  

• In riscv64: ✅

  struct rq_wb {
      unsigned int wb_background;
      unsigned int wb_normal;
      short int enable_state;
      unsigned int unknown_cnt;
      u64 win_nsec;
      u64 cur_win_nsec;
      struct blk_stat_callback *cb;
      u64 sync_issue;
      void *sync_cookie;
      unsigned int wc;
      long unsigned int last_issue;
      long unsigned int last_comp;
      long unsigned int min_lat_nsec;
      struct rq_qos rqos;
      struct rq_wait rq_wait[3];
      struct rq_depth rq_depth;
  };
  

Flavor

• In aws: ✅

  struct rq_wb {
      unsigned int wb_background;
      unsigned int wb_normal;
      short int enable_state;
      unsigned int unknown_cnt;
      u64 win_nsec;
      u64 cur_win_nsec;
      struct blk_stat_callback *cb;
      u64 sync_issue;
      void *sync_cookie;
      unsigned int wc;
      long unsigned int last_issue;
      long unsigned int last_comp;
      long unsigned int min_lat_nsec;
      struct rq_qos rqos;
      struct rq_wait rq_wait[3];
      struct rq_depth rq_depth;
  };
  

• In azure: ✅

  struct rq_wb {
      unsigned int wb_background;
      unsigned int wb_normal;
      short int enable_state;
      unsigned int unknown_cnt;
      u64 win_nsec;
      u64 cur_win_nsec;
      struct blk_stat_callback *cb;
      u64 sync_issue;
      void *sync_cookie;
      unsigned int wc;
      long unsigned int last_issue;
      long unsigned int last_comp;
      long unsigned int min_lat_nsec;
      struct rq_qos rqos;
      struct rq_wait rq_wait[3];
      struct rq_depth rq_depth;
  };
  

• In gcp: ✅

  struct rq_wb {
      unsigned int wb_background;
      unsigned int wb_normal;
      short int enable_state;
      unsigned int unknown_cnt;
      u64 win_nsec;
      u64 cur_win_nsec;
      struct blk_stat_callback *cb;
      u64 sync_issue;
      void *sync_cookie;
      unsigned int wc;
      long unsigned int last_issue;
      long unsigned int last_comp;
      long unsigned int min_lat_nsec;
      struct rq_qos rqos;
      struct rq_wait rq_wait[3];
      struct rq_depth rq_depth;
  };
  

• In lowlatency: ✅

  struct rq_wb {
      unsigned int wb_background;
      unsigned int wb_normal;
      short int enable_state;
      unsigned int unknown_cnt;
      u64 win_nsec;
      u64 cur_win_nsec;
      struct blk_stat_callback *cb;
      u64 sync_issue;
      void *sync_cookie;
      unsigned int wc;
      long unsigned int last_issue;
      long unsigned int last_comp;
      long unsigned int min_lat_nsec;
      struct rq_qos rqos;
      struct rq_wait rq_wait[3];
      struct rq_depth rq_depth;
  };
  

Differences

Regular

• Changed between 4.10 and 4.13 ⚠️

  • Field added. struct blk_stat_callback *cb
  • Field removed. struct timer_list window_timer
• No changes between 4.13 and 4.15 ✅
• Changed between 4.15 and 4.18 ⚠️

  • Field type changed. s64 sync_issue ➡️ u64 sync_issue
  • Field type changed. struct rq_wait rq_wait[2] ➡️ struct rq_wait rq_wait[3]
• Changed between 4.18 and 5.0 ⚠️

  • Field added. struct rq_qos rqos
  • Field added. struct rq_depth rq_depth
  • Field removed. unsigned int wb_max
  • Field removed. int scale_step
  • Field removed. bool scaled_max
  • Field removed. unsigned int queue_depth
  • Field removed. struct request_queue *queue
• 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 ✅
• No changes between 6.2 and 6.5 ✅
• Changed between 6.5 and 6.8 ⚠️

  • Field removed. unsigned int wc

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 ✅