website-struct

Struct: blk_mq_tags

Status

Regular

• In 4.4: ✅

  struct blk_mq_tags {
      unsigned int nr_tags;
      unsigned int nr_reserved_tags;
      atomic_t active_queues;
      struct blk_mq_bitmap_tags bitmap_tags;
      struct blk_mq_bitmap_tags breserved_tags;
      struct request **rqs;
      struct list_head page_list;
      int alloc_policy;
      cpumask_var_t cpumask;
  };
  

• In 4.8: ✅

  struct blk_mq_tags {
      unsigned int nr_tags;
      unsigned int nr_reserved_tags;
      atomic_t active_queues;
      struct blk_mq_bitmap_tags bitmap_tags;
      struct blk_mq_bitmap_tags breserved_tags;
      struct request **rqs;
      struct list_head page_list;
      int alloc_policy;
      cpumask_var_t cpumask;
  };
  

• In 4.10: ✅

  struct blk_mq_tags {
      unsigned int nr_tags;
      unsigned int nr_reserved_tags;
      atomic_t active_queues;
      struct sbitmap_queue bitmap_tags;
      struct sbitmap_queue breserved_tags;
      struct request **rqs;
      struct list_head page_list;
  };
  

• In 4.13: ✅

  struct blk_mq_tags {
      unsigned int nr_tags;
      unsigned int nr_reserved_tags;
      atomic_t active_queues;
      struct sbitmap_queue bitmap_tags;
      struct sbitmap_queue breserved_tags;
      struct request **rqs;
      struct request **static_rqs;
      struct list_head page_list;
  };
  

• In 4.15: ✅

  struct blk_mq_tags {
      unsigned int nr_tags;
      unsigned int nr_reserved_tags;
      atomic_t active_queues;
      struct sbitmap_queue bitmap_tags;
      struct sbitmap_queue breserved_tags;
      struct request **rqs;
      struct request **static_rqs;
      struct list_head page_list;
  };
  

• In 4.18: ✅

  struct blk_mq_tags {
      unsigned int nr_tags;
      unsigned int nr_reserved_tags;
      atomic_t active_queues;
      struct sbitmap_queue bitmap_tags;
      struct sbitmap_queue breserved_tags;
      struct request **rqs;
      struct request **static_rqs;
      struct list_head page_list;
  };
  

• In 5.0: ✅

  struct blk_mq_tags {
      unsigned int nr_tags;
      unsigned int nr_reserved_tags;
      atomic_t active_queues;
      struct sbitmap_queue bitmap_tags;
      struct sbitmap_queue breserved_tags;
      struct request **rqs;
      struct request **static_rqs;
      struct list_head page_list;
  };
  

• In 5.3: ✅

  struct blk_mq_tags {
      unsigned int nr_tags;
      unsigned int nr_reserved_tags;
      atomic_t active_queues;
      struct sbitmap_queue bitmap_tags;
      struct sbitmap_queue breserved_tags;
      struct request **rqs;
      struct request **static_rqs;
      struct list_head page_list;
  };
  

• In 5.4: ✅

  struct blk_mq_tags {
      unsigned int nr_tags;
      unsigned int nr_reserved_tags;
      atomic_t active_queues;
      struct sbitmap_queue bitmap_tags;
      struct sbitmap_queue breserved_tags;
      struct request **rqs;
      struct request **static_rqs;
      struct list_head page_list;
  };
  

• In 5.8: ✅

  struct blk_mq_tags {
      unsigned int nr_tags;
      unsigned int nr_reserved_tags;
      atomic_t active_queues;
      struct sbitmap_queue bitmap_tags;
      struct sbitmap_queue breserved_tags;
      struct request **rqs;
      struct request **static_rqs;
      struct list_head page_list;
  };
  

• In 5.11: ✅

  struct blk_mq_tags {
      unsigned int nr_tags;
      unsigned int nr_reserved_tags;
      atomic_t active_queues;
      struct sbitmap_queue *bitmap_tags;
      struct sbitmap_queue *breserved_tags;
      struct sbitmap_queue __bitmap_tags;
      struct sbitmap_queue __breserved_tags;
      struct request **rqs;
      struct request **static_rqs;
      struct list_head page_list;
  };
  

• In 5.13: ✅

  struct blk_mq_tags {
      unsigned int nr_tags;
      unsigned int nr_reserved_tags;
      atomic_t active_queues;
      struct sbitmap_queue *bitmap_tags;
      struct sbitmap_queue *breserved_tags;
      struct sbitmap_queue __bitmap_tags;
      struct sbitmap_queue __breserved_tags;
      struct request **rqs;
      struct request **static_rqs;
      struct list_head page_list;
      spinlock_t lock;
  };
  

• In 5.15: ✅

  struct blk_mq_tags {
      unsigned int nr_tags;
      unsigned int nr_reserved_tags;
      atomic_t active_queues;
      struct sbitmap_queue *bitmap_tags;
      struct sbitmap_queue *breserved_tags;
      struct sbitmap_queue __bitmap_tags;
      struct sbitmap_queue __breserved_tags;
      struct request **rqs;
      struct request **static_rqs;
      struct list_head page_list;
      spinlock_t lock;
  };
  

• In 5.19: ✅

  struct blk_mq_tags {
      unsigned int nr_tags;
      unsigned int nr_reserved_tags;
      atomic_t active_queues;
      struct sbitmap_queue bitmap_tags;
      struct sbitmap_queue breserved_tags;
      struct request **rqs;
      struct request **static_rqs;
      struct list_head page_list;
      spinlock_t lock;
  };
  

• In 6.2: ✅

  struct blk_mq_tags {
      unsigned int nr_tags;
      unsigned int nr_reserved_tags;
      atomic_t active_queues;
      struct sbitmap_queue bitmap_tags;
      struct sbitmap_queue breserved_tags;
      struct request **rqs;
      struct request **static_rqs;
      struct list_head page_list;
      spinlock_t lock;
  };
  

• In 6.5: ✅

  struct blk_mq_tags {
      unsigned int nr_tags;
      unsigned int nr_reserved_tags;
      unsigned int active_queues;
      struct sbitmap_queue bitmap_tags;
      struct sbitmap_queue breserved_tags;
      struct request **rqs;
      struct request **static_rqs;
      struct list_head page_list;
      spinlock_t lock;
  };
  

• In 6.8: ✅

  struct blk_mq_tags {
      unsigned int nr_tags;
      unsigned int nr_reserved_tags;
      unsigned int active_queues;
      struct sbitmap_queue bitmap_tags;
      struct sbitmap_queue breserved_tags;
      struct request **rqs;
      struct request **static_rqs;
      struct list_head page_list;
      spinlock_t lock;
  };
  

Arch

• In arm64: ✅

  struct blk_mq_tags {
      unsigned int nr_tags;
      unsigned int nr_reserved_tags;
      atomic_t active_queues;
      struct sbitmap_queue bitmap_tags;
      struct sbitmap_queue breserved_tags;
      struct request **rqs;
      struct request **static_rqs;
      struct list_head page_list;
  };
  

• In armhf: ✅

  struct blk_mq_tags {
      unsigned int nr_tags;
      unsigned int nr_reserved_tags;
      atomic_t active_queues;
      struct sbitmap_queue bitmap_tags;
      struct sbitmap_queue breserved_tags;
      struct request **rqs;
      struct request **static_rqs;
      struct list_head page_list;
  };
  

• In ppc64el: ✅

  struct blk_mq_tags {
      unsigned int nr_tags;
      unsigned int nr_reserved_tags;
      atomic_t active_queues;
      struct sbitmap_queue bitmap_tags;
      struct sbitmap_queue breserved_tags;
      struct request **rqs;
      struct request **static_rqs;
      struct list_head page_list;
  };
  

• In riscv64: ✅

  struct blk_mq_tags {
      unsigned int nr_tags;
      unsigned int nr_reserved_tags;
      atomic_t active_queues;
      struct sbitmap_queue bitmap_tags;
      struct sbitmap_queue breserved_tags;
      struct request **rqs;
      struct request **static_rqs;
      struct list_head page_list;
  };
  

Flavor

• In aws: ✅

  struct blk_mq_tags {
      unsigned int nr_tags;
      unsigned int nr_reserved_tags;
      atomic_t active_queues;
      struct sbitmap_queue bitmap_tags;
      struct sbitmap_queue breserved_tags;
      struct request **rqs;
      struct request **static_rqs;
      struct list_head page_list;
  };
  

• In azure: ✅

  struct blk_mq_tags {
      unsigned int nr_tags;
      unsigned int nr_reserved_tags;
      atomic_t active_queues;
      struct sbitmap_queue bitmap_tags;
      struct sbitmap_queue breserved_tags;
      struct request **rqs;
      struct request **static_rqs;
      struct list_head page_list;
  };
  

• In gcp: ✅

  struct blk_mq_tags {
      unsigned int nr_tags;
      unsigned int nr_reserved_tags;
      atomic_t active_queues;
      struct sbitmap_queue bitmap_tags;
      struct sbitmap_queue breserved_tags;
      struct request **rqs;
      struct request **static_rqs;
      struct list_head page_list;
  };
  

• In lowlatency: ✅

  struct blk_mq_tags {
      unsigned int nr_tags;
      unsigned int nr_reserved_tags;
      atomic_t active_queues;
      struct sbitmap_queue bitmap_tags;
      struct sbitmap_queue breserved_tags;
      struct request **rqs;
      struct request **static_rqs;
      struct list_head page_list;
  };
  

Differences

Regular

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

  • Field removed. int alloc_policy
  • Field removed. cpumask_var_t cpumask
  • Field type changed. struct blk_mq_bitmap_tags bitmap_tags ➡️ struct sbitmap_queue bitmap_tags
  • Field type changed. struct blk_mq_bitmap_tags breserved_tags ➡️ struct sbitmap_queue breserved_tags
• Changed between 4.10 and 4.13 ⚠️

  • Field added. struct request **static_rqs
• 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 ✅
• Changed between 5.8 and 5.11 ⚠️

  • Field added. struct sbitmap_queue __bitmap_tags
  • Field added. struct sbitmap_queue __breserved_tags
  • Field type changed. struct sbitmap_queue bitmap_tags ➡️ struct sbitmap_queue *bitmap_tags
  • Field type changed. struct sbitmap_queue breserved_tags ➡️ struct sbitmap_queue *breserved_tags
• Changed between 5.11 and 5.13 ⚠️

  • Field added. spinlock_t lock
• No changes between 5.13 and 5.15 ✅
• Changed between 5.15 and 5.19 ⚠️

  • Field removed. struct sbitmap_queue __bitmap_tags
  • Field removed. struct sbitmap_queue __breserved_tags
  • Field type changed. struct sbitmap_queue *bitmap_tags ➡️ struct sbitmap_queue bitmap_tags
  • Field type changed. struct sbitmap_queue *breserved_tags ➡️ struct sbitmap_queue breserved_tags
• No changes between 5.19 and 6.2 ✅
• Changed between 6.2 and 6.5 ⚠️

  • Field type changed. atomic_t active_queues ➡️ unsigned int active_queues
• 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 ✅