DepSurf

Struct: blkfront_ring_info

Status

Regular

• In 4.4: Absent ⚠️
• In 4.8: ✅

  struct blkfront_ring_info {
      spinlock_t ring_lock;
      struct blkif_front_ring ring;
      unsigned int ring_ref[16];
      unsigned int evtchn;
      unsigned int irq;
      struct work_struct work;
      struct gnttab_free_callback callback;
      struct blk_shadow shadow[512];
      struct list_head indirect_pages;
      struct list_head grants;
      unsigned int persistent_gnts_c;
      long unsigned int shadow_free;
      struct blkfront_info *dev_info;
  };
  

• In 4.10: ✅

  struct blkfront_ring_info {
      spinlock_t ring_lock;
      struct blkif_front_ring ring;
      unsigned int ring_ref[16];
      unsigned int evtchn;
      unsigned int irq;
      struct work_struct work;
      struct gnttab_free_callback callback;
      struct blk_shadow shadow[512];
      struct list_head indirect_pages;
      struct list_head grants;
      unsigned int persistent_gnts_c;
      long unsigned int shadow_free;
      struct blkfront_info *dev_info;
  };
  

• In 4.13: ✅

  struct blkfront_ring_info {
      spinlock_t ring_lock;
      struct blkif_front_ring ring;
      unsigned int ring_ref[16];
      unsigned int evtchn;
      unsigned int irq;
      struct work_struct work;
      struct gnttab_free_callback callback;
      struct blk_shadow shadow[512];
      struct list_head indirect_pages;
      struct list_head grants;
      unsigned int persistent_gnts_c;
      long unsigned int shadow_free;
      struct blkfront_info *dev_info;
  };
  

• In 4.15: ✅

  struct blkfront_ring_info {
      spinlock_t ring_lock;
      struct blkif_front_ring ring;
      unsigned int ring_ref[16];
      unsigned int evtchn;
      unsigned int irq;
      struct work_struct work;
      struct gnttab_free_callback callback;
      struct blk_shadow shadow[512];
      struct list_head indirect_pages;
      struct list_head grants;
      unsigned int persistent_gnts_c;
      long unsigned int shadow_free;
      struct blkfront_info *dev_info;
  };
  

• In 4.18: ✅

  struct blkfront_ring_info {
      spinlock_t ring_lock;
      struct blkif_front_ring ring;
      unsigned int ring_ref[16];
      unsigned int evtchn;
      unsigned int irq;
      struct work_struct work;
      struct gnttab_free_callback callback;
      struct blk_shadow shadow[512];
      struct list_head indirect_pages;
      struct list_head grants;
      unsigned int persistent_gnts_c;
      long unsigned int shadow_free;
      struct blkfront_info *dev_info;
  };
  

• In 5.0: ✅

  struct blkfront_ring_info {
      spinlock_t ring_lock;
      struct blkif_front_ring ring;
      unsigned int ring_ref[16];
      unsigned int evtchn;
      unsigned int irq;
      struct work_struct work;
      struct gnttab_free_callback callback;
      struct blk_shadow shadow[512];
      struct list_head indirect_pages;
      struct list_head grants;
      unsigned int persistent_gnts_c;
      long unsigned int shadow_free;
      struct blkfront_info *dev_info;
  };
  

• In 5.3: ✅

  struct blkfront_ring_info {
      spinlock_t ring_lock;
      struct blkif_front_ring ring;
      unsigned int ring_ref[16];
      unsigned int evtchn;
      unsigned int irq;
      struct work_struct work;
      struct gnttab_free_callback callback;
      struct blk_shadow shadow[512];
      struct list_head indirect_pages;
      struct list_head grants;
      unsigned int persistent_gnts_c;
      long unsigned int shadow_free;
      struct blkfront_info *dev_info;
  };
  

• In 5.4: ✅

  struct blkfront_ring_info {
      spinlock_t ring_lock;
      struct blkif_front_ring ring;
      unsigned int ring_ref[16];
      unsigned int evtchn;
      unsigned int irq;
      struct work_struct work;
      struct gnttab_free_callback callback;
      struct blk_shadow shadow[512];
      struct list_head indirect_pages;
      struct list_head grants;
      unsigned int persistent_gnts_c;
      long unsigned int shadow_free;
      struct blkfront_info *dev_info;
  };
  

• In 5.8: ✅

  struct blkfront_ring_info {
      spinlock_t ring_lock;
      struct blkif_front_ring ring;
      unsigned int ring_ref[16];
      unsigned int evtchn;
      unsigned int irq;
      struct work_struct work;
      struct gnttab_free_callback callback;
      struct list_head indirect_pages;
      struct list_head grants;
      unsigned int persistent_gnts_c;
      long unsigned int shadow_free;
      struct blkfront_info *dev_info;
      struct blk_shadow shadow[0];
  };
  

• In 5.11: ✅

  struct blkfront_ring_info {
      spinlock_t ring_lock;
      struct blkif_front_ring ring;
      unsigned int ring_ref[16];
      unsigned int evtchn;
      unsigned int irq;
      struct work_struct work;
      struct gnttab_free_callback callback;
      struct list_head indirect_pages;
      struct list_head grants;
      unsigned int persistent_gnts_c;
      long unsigned int shadow_free;
      struct blkfront_info *dev_info;
      struct blk_shadow shadow[0];
  };
  

• In 5.13: ✅

  struct blkfront_ring_info {
      spinlock_t ring_lock;
      struct blkif_front_ring ring;
      unsigned int ring_ref[16];
      unsigned int evtchn;
      unsigned int irq;
      struct work_struct work;
      struct gnttab_free_callback callback;
      struct list_head indirect_pages;
      struct list_head grants;
      unsigned int persistent_gnts_c;
      long unsigned int shadow_free;
      struct blkfront_info *dev_info;
      struct blk_shadow shadow[0];
  };
  

• In 5.15: ✅

  struct blkfront_ring_info {
      spinlock_t ring_lock;
      struct blkif_front_ring ring;
      unsigned int ring_ref[16];
      unsigned int evtchn;
      unsigned int irq;
      struct work_struct work;
      struct gnttab_free_callback callback;
      struct list_head indirect_pages;
      struct list_head grants;
      unsigned int persistent_gnts_c;
      long unsigned int shadow_free;
      struct blkfront_info *dev_info;
      struct blk_shadow shadow[0];
  };
  

• In 5.19: ✅

  struct blkfront_ring_info {
      spinlock_t ring_lock;
      struct blkif_front_ring ring;
      unsigned int ring_ref[16];
      unsigned int evtchn;
      unsigned int irq;
      struct work_struct work;
      struct gnttab_free_callback callback;
      struct list_head indirect_pages;
      struct list_head grants;
      unsigned int persistent_gnts_c;
      long unsigned int shadow_free;
      struct blkfront_info *dev_info;
      struct blk_shadow shadow[0];
  };
  

• In 6.2: ✅

  struct blkfront_ring_info {
      spinlock_t ring_lock;
      struct blkif_front_ring ring;
      unsigned int ring_ref[16];
      unsigned int evtchn;
      unsigned int irq;
      struct work_struct work;
      struct gnttab_free_callback callback;
      struct list_head indirect_pages;
      struct list_head grants;
      unsigned int persistent_gnts_c;
      long unsigned int shadow_free;
      struct blkfront_info *dev_info;
      struct blk_shadow shadow[0];
  };
  

• In 6.5: ✅

  struct blkfront_ring_info {
      spinlock_t ring_lock;
      struct blkif_front_ring ring;
      unsigned int ring_ref[16];
      unsigned int evtchn;
      unsigned int irq;
      struct work_struct work;
      struct gnttab_free_callback callback;
      struct list_head indirect_pages;
      struct list_head grants;
      unsigned int persistent_gnts_c;
      long unsigned int shadow_free;
      struct blkfront_info *dev_info;
      struct blk_shadow shadow[0];
  };
  

• In 6.8: ✅

  struct blkfront_ring_info {
      spinlock_t ring_lock;
      struct blkif_front_ring ring;
      unsigned int ring_ref[16];
      unsigned int evtchn;
      unsigned int irq;
      struct work_struct work;
      struct gnttab_free_callback callback;
      struct list_head indirect_pages;
      struct list_head grants;
      unsigned int persistent_gnts_c;
      long unsigned int shadow_free;
      struct blkfront_info *dev_info;
      struct blk_shadow shadow[0];
  };
  

Arch

• In arm64: ✅

  struct blkfront_ring_info {
      spinlock_t ring_lock;
      struct blkif_front_ring ring;
      unsigned int ring_ref[16];
      unsigned int evtchn;
      unsigned int irq;
      struct work_struct work;
      struct gnttab_free_callback callback;
      struct blk_shadow shadow[512];
      struct list_head indirect_pages;
      struct list_head grants;
      unsigned int persistent_gnts_c;
      long unsigned int shadow_free;
      struct blkfront_info *dev_info;
  };
  

• In armhf: Absent ⚠️
• In ppc64el: Absent ⚠️
• In riscv64: Absent ⚠️

Flavor

• In aws: ✅

  struct blkfront_ring_info {
      spinlock_t ring_lock;
      struct blkif_front_ring ring;
      unsigned int ring_ref[16];
      unsigned int evtchn;
      unsigned int irq;
      struct work_struct work;
      struct gnttab_free_callback callback;
      struct blk_shadow shadow[512];
      struct list_head indirect_pages;
      struct list_head grants;
      unsigned int persistent_gnts_c;
      long unsigned int shadow_free;
      struct blkfront_info *dev_info;
  };
  

• In azure: Absent ⚠️
• In gcp: ✅

  struct blkfront_ring_info {
      spinlock_t ring_lock;
      struct blkif_front_ring ring;
      unsigned int ring_ref[16];
      unsigned int evtchn;
      unsigned int irq;
      struct work_struct work;
      struct gnttab_free_callback callback;
      struct blk_shadow shadow[512];
      struct list_head indirect_pages;
      struct list_head grants;
      unsigned int persistent_gnts_c;
      long unsigned int shadow_free;
      struct blkfront_info *dev_info;
  };
  

• In lowlatency: ✅

  struct blkfront_ring_info {
      spinlock_t ring_lock;
      struct blkif_front_ring ring;
      unsigned int ring_ref[16];
      unsigned int evtchn;
      unsigned int irq;
      struct work_struct work;
      struct gnttab_free_callback callback;
      struct blk_shadow shadow[512];
      struct list_head indirect_pages;
      struct list_head grants;
      unsigned int persistent_gnts_c;
      long unsigned int shadow_free;
      struct blkfront_info *dev_info;
  };
  

Differences

Regular

• No changes between 4.8 and 4.10 ✅
• No changes between 4.10 and 4.13 ✅
• 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 ✅
• Changed between 5.4 and 5.8 ⚠️

  • Field type changed. struct blk_shadow shadow[512] ➡️ struct blk_shadow shadow[0]
• 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 ✅
• No changes between 6.5 and 6.8 ✅

Arch

• No changes between amd64 and arm64 ✅

Flavor

• No changes between generic and aws ✅
• No changes between generic and gcp ✅
• No changes between generic and lowlatency ✅