DepSurf

Struct: blk_mq_ctx

Status

Regular

• In 4.4: ✅

  struct blk_mq_ctx {
      spinlock_t lock;
      struct list_head rq_list;
      unsigned int cpu;
      unsigned int index_hw;
      unsigned int last_tag;
      long unsigned int rq_dispatched[2];
      long unsigned int rq_merged;
      long unsigned int rq_completed[2];
      struct request_queue *queue;
      struct kobject kobj;
  };
  

• In 4.8: ✅

  struct blk_mq_ctx {
      spinlock_t lock;
      struct list_head rq_list;
      unsigned int cpu;
      unsigned int index_hw;
      unsigned int last_tag;
      long unsigned int rq_dispatched[2];
      long unsigned int rq_merged;
      long unsigned int rq_completed[2];
      struct request_queue *queue;
      struct kobject kobj;
  };
  

• In 4.10: ✅

  struct blk_mq_ctx {
      spinlock_t lock;
      struct list_head rq_list;
      unsigned int cpu;
      unsigned int index_hw;
      long unsigned int rq_dispatched[2];
      long unsigned int rq_merged;
      long unsigned int rq_completed[2];
      struct blk_rq_stat stat[2];
      struct request_queue *queue;
      struct kobject kobj;
  };
  

• In 4.13: ✅

  struct blk_mq_ctx {
      spinlock_t lock;
      struct list_head rq_list;
      unsigned int cpu;
      unsigned int index_hw;
      long unsigned int rq_dispatched[2];
      long unsigned int rq_merged;
      long unsigned int rq_completed[2];
      struct request_queue *queue;
      struct kobject kobj;
  };
  

• In 4.15: ✅

  struct blk_mq_ctx {
      spinlock_t lock;
      struct list_head rq_list;
      unsigned int cpu;
      unsigned int index_hw;
      long unsigned int rq_dispatched[2];
      long unsigned int rq_merged;
      long unsigned int rq_completed[2];
      struct request_queue *queue;
      struct kobject kobj;
  };
  

• In 4.18: ✅

  struct blk_mq_ctx {
      spinlock_t lock;
      struct list_head rq_list;
      unsigned int cpu;
      unsigned int index_hw;
      long unsigned int rq_dispatched[2];
      long unsigned int rq_merged;
      long unsigned int rq_completed[2];
      struct request_queue *queue;
      struct kobject kobj;
  };
  

• In 5.0: ✅

  struct blk_mq_ctx {
      spinlock_t lock;
      struct list_head rq_lists[3];
      unsigned int cpu;
      short unsigned int index_hw[3];
      long unsigned int rq_dispatched[2];
      long unsigned int rq_merged;
      long unsigned int rq_completed[2];
      struct request_queue *queue;
      struct blk_mq_ctxs *ctxs;
      struct kobject kobj;
  };
  

• In 5.3: ✅

  struct blk_mq_ctx {
      spinlock_t lock;
      struct list_head rq_lists[3];
      unsigned int cpu;
      short unsigned int index_hw[3];
      struct blk_mq_hw_ctx * hctxs[3];
      long unsigned int rq_dispatched[2];
      long unsigned int rq_merged;
      long unsigned int rq_completed[2];
      struct request_queue *queue;
      struct blk_mq_ctxs *ctxs;
      struct kobject kobj;
  };
  

• In 5.4: ✅

  struct blk_mq_ctx {
      spinlock_t lock;
      struct list_head rq_lists[3];
      unsigned int cpu;
      short unsigned int index_hw[3];
      struct blk_mq_hw_ctx * hctxs[3];
      long unsigned int rq_dispatched[2];
      long unsigned int rq_merged;
      long unsigned int rq_completed[2];
      struct request_queue *queue;
      struct blk_mq_ctxs *ctxs;
      struct kobject kobj;
  };
  

• In 5.8: ✅

  struct blk_mq_ctx {
      spinlock_t lock;
      struct list_head rq_lists[3];
      unsigned int cpu;
      short unsigned int index_hw[3];
      struct blk_mq_hw_ctx * hctxs[3];
      long unsigned int rq_dispatched[2];
      long unsigned int rq_merged;
      long unsigned int rq_completed[2];
      struct request_queue *queue;
      struct blk_mq_ctxs *ctxs;
      struct kobject kobj;
  };
  

• In 5.11: ✅

  struct blk_mq_ctx {
      spinlock_t lock;
      struct list_head rq_lists[3];
      unsigned int cpu;
      short unsigned int index_hw[3];
      struct blk_mq_hw_ctx * hctxs[3];
      long unsigned int rq_dispatched[2];
      long unsigned int rq_merged;
      long unsigned int rq_completed[2];
      struct request_queue *queue;
      struct blk_mq_ctxs *ctxs;
      struct kobject kobj;
  };
  

• In 5.13: ✅

  struct blk_mq_ctx {
      spinlock_t lock;
      struct list_head rq_lists[3];
      unsigned int cpu;
      short unsigned int index_hw[3];
      struct blk_mq_hw_ctx * hctxs[3];
      long unsigned int rq_dispatched[2];
      long unsigned int rq_merged;
      long unsigned int rq_completed[2];
      struct request_queue *queue;
      struct blk_mq_ctxs *ctxs;
      struct kobject kobj;
  };
  

• In 5.15: ✅

  struct blk_mq_ctx {
      spinlock_t lock;
      struct list_head rq_lists[3];
      unsigned int cpu;
      short unsigned int index_hw[3];
      struct blk_mq_hw_ctx * hctxs[3];
      long unsigned int rq_dispatched[2];
      long unsigned int rq_merged;
      long unsigned int rq_completed[2];
      struct request_queue *queue;
      struct blk_mq_ctxs *ctxs;
      struct kobject kobj;
  };
  

• In 5.19: ✅

  struct blk_mq_ctx {
      spinlock_t lock;
      struct list_head rq_lists[3];
      unsigned int cpu;
      short unsigned int index_hw[3];
      struct blk_mq_hw_ctx * hctxs[3];
      struct request_queue *queue;
      struct blk_mq_ctxs *ctxs;
      struct kobject kobj;
  };
  

• In 6.2: ✅

  struct blk_mq_ctx {
      spinlock_t lock;
      struct list_head rq_lists[3];
      unsigned int cpu;
      short unsigned int index_hw[3];
      struct blk_mq_hw_ctx * hctxs[3];
      struct request_queue *queue;
      struct blk_mq_ctxs *ctxs;
      struct kobject kobj;
  };
  

• In 6.5: ✅

  struct blk_mq_ctx {
      spinlock_t lock;
      struct list_head rq_lists[3];
      unsigned int cpu;
      short unsigned int index_hw[3];
      struct blk_mq_hw_ctx * hctxs[3];
      struct request_queue *queue;
      struct blk_mq_ctxs *ctxs;
      struct kobject kobj;
  };
  

• In 6.8: ✅

  struct blk_mq_ctx {
      spinlock_t lock;
      struct list_head rq_lists[3];
      unsigned int cpu;
      short unsigned int index_hw[3];
      struct blk_mq_hw_ctx * hctxs[3];
      struct request_queue *queue;
      struct blk_mq_ctxs *ctxs;
      struct kobject kobj;
  };
  

Arch

• In arm64: ✅

  struct blk_mq_ctx {
      spinlock_t lock;
      struct list_head rq_lists[3];
      unsigned int cpu;
      short unsigned int index_hw[3];
      struct blk_mq_hw_ctx * hctxs[3];
      long unsigned int rq_dispatched[2];
      long unsigned int rq_merged;
      long unsigned int rq_completed[2];
      struct request_queue *queue;
      struct blk_mq_ctxs *ctxs;
      struct kobject kobj;
  };
  

• In armhf: ✅

  struct blk_mq_ctx {
      spinlock_t lock;
      struct list_head rq_lists[3];
      unsigned int cpu;
      short unsigned int index_hw[3];
      struct blk_mq_hw_ctx * hctxs[3];
      long unsigned int rq_dispatched[2];
      long unsigned int rq_merged;
      long unsigned int rq_completed[2];
      struct request_queue *queue;
      struct blk_mq_ctxs *ctxs;
      struct kobject kobj;
  };
  

• In ppc64el: ✅

  struct blk_mq_ctx {
      spinlock_t lock;
      struct list_head rq_lists[3];
      unsigned int cpu;
      short unsigned int index_hw[3];
      struct blk_mq_hw_ctx * hctxs[3];
      long unsigned int rq_dispatched[2];
      long unsigned int rq_merged;
      long unsigned int rq_completed[2];
      struct request_queue *queue;
      struct blk_mq_ctxs *ctxs;
      struct kobject kobj;
  };
  

• In riscv64: ✅

  struct blk_mq_ctx {
      spinlock_t lock;
      struct list_head rq_lists[3];
      unsigned int cpu;
      short unsigned int index_hw[3];
      struct blk_mq_hw_ctx * hctxs[3];
      long unsigned int rq_dispatched[2];
      long unsigned int rq_merged;
      long unsigned int rq_completed[2];
      struct request_queue *queue;
      struct blk_mq_ctxs *ctxs;
      struct kobject kobj;
  };
  

Flavor

• In aws: ✅

  struct blk_mq_ctx {
      spinlock_t lock;
      struct list_head rq_lists[3];
      unsigned int cpu;
      short unsigned int index_hw[3];
      struct blk_mq_hw_ctx * hctxs[3];
      long unsigned int rq_dispatched[2];
      long unsigned int rq_merged;
      long unsigned int rq_completed[2];
      struct request_queue *queue;
      struct blk_mq_ctxs *ctxs;
      struct kobject kobj;
  };
  

• In azure: ✅

  struct blk_mq_ctx {
      spinlock_t lock;
      struct list_head rq_lists[3];
      unsigned int cpu;
      short unsigned int index_hw[3];
      struct blk_mq_hw_ctx * hctxs[3];
      long unsigned int rq_dispatched[2];
      long unsigned int rq_merged;
      long unsigned int rq_completed[2];
      struct request_queue *queue;
      struct blk_mq_ctxs *ctxs;
      struct kobject kobj;
  };
  

• In gcp: ✅

  struct blk_mq_ctx {
      spinlock_t lock;
      struct list_head rq_lists[3];
      unsigned int cpu;
      short unsigned int index_hw[3];
      struct blk_mq_hw_ctx * hctxs[3];
      long unsigned int rq_dispatched[2];
      long unsigned int rq_merged;
      long unsigned int rq_completed[2];
      struct request_queue *queue;
      struct blk_mq_ctxs *ctxs;
      struct kobject kobj;
  };
  

• In lowlatency: ✅

  struct blk_mq_ctx {
      spinlock_t lock;
      struct list_head rq_lists[3];
      unsigned int cpu;
      short unsigned int index_hw[3];
      struct blk_mq_hw_ctx * hctxs[3];
      long unsigned int rq_dispatched[2];
      long unsigned int rq_merged;
      long unsigned int rq_completed[2];
      struct request_queue *queue;
      struct blk_mq_ctxs *ctxs;
      struct kobject kobj;
  };
  

Differences

Regular

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

  • Field added. struct blk_rq_stat stat[2]
  • Field removed. unsigned int last_tag
• Changed between 4.10 and 4.13 ⚠️

  • Field removed. struct blk_rq_stat stat[2]
• 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. struct list_head rq_lists[3]
  • Field added. struct blk_mq_ctxs *ctxs
  • Field removed. struct list_head rq_list
  • Field type changed. unsigned int index_hw ➡️ short unsigned int index_hw[3]
• Changed between 5.0 and 5.3 ⚠️

  • Field added. struct blk_mq_hw_ctx * hctxs[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 ✅
• Changed between 5.15 and 5.19 ⚠️

  • Field removed. long unsigned int rq_dispatched[2]
  • Field removed. long unsigned int rq_merged
  • Field removed. long unsigned int rq_completed[2]
• 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 ✅