website-struct

Struct: blkfront_info

Status

Regular

• In 4.4: ✅

  struct blkfront_info {
      spinlock_t io_lock;
      struct mutex mutex;
      struct xenbus_device *xbdev;
      struct gendisk *gd;
      int vdevice;
      blkif_vdev_t handle;
      enum blkif_state connected;
      int ring_ref[16];
      unsigned int nr_ring_pages;
      struct blkif_front_ring ring;
      unsigned int evtchn;
      unsigned int irq;
      struct request_queue *rq;
      struct work_struct work;
      struct gnttab_free_callback callback;
      struct blk_shadow shadow[512];
      struct list_head grants;
      struct list_head indirect_pages;
      unsigned int persistent_gnts_c;
      long unsigned int shadow_free;
      unsigned int feature_flush;
      unsigned int feature_discard;
      unsigned int feature_secdiscard;
      unsigned int discard_granularity;
      unsigned int discard_alignment;
      unsigned int feature_persistent;
      unsigned int max_indirect_segments;
      int is_ready;
      struct blk_mq_tag_set tag_set;
  };
  

• In 4.8: ✅

  struct blkfront_info {
      struct mutex mutex;
      struct xenbus_device *xbdev;
      struct gendisk *gd;
      u16 sector_size;
      unsigned int physical_sector_size;
      int vdevice;
      blkif_vdev_t handle;
      enum blkif_state connected;
      unsigned int nr_ring_pages;
      struct request_queue *rq;
      unsigned int feature_flush;
      unsigned int feature_fua;
      unsigned int feature_discard;
      unsigned int feature_secdiscard;
      unsigned int discard_granularity;
      unsigned int discard_alignment;
      unsigned int feature_persistent;
      unsigned int max_indirect_segments;
      int is_ready;
      struct blk_mq_tag_set tag_set;
      struct blkfront_ring_info *rinfo;
      unsigned int nr_rings;
      struct list_head requests;
      struct bio_list bio_list;
  };
  

• In 4.10: ✅

  struct blkfront_info {
      struct mutex mutex;
      struct xenbus_device *xbdev;
      struct gendisk *gd;
      u16 sector_size;
      unsigned int physical_sector_size;
      int vdevice;
      blkif_vdev_t handle;
      enum blkif_state connected;
      unsigned int nr_ring_pages;
      struct request_queue *rq;
      unsigned int feature_flush;
      unsigned int feature_fua;
      unsigned int feature_discard;
      unsigned int feature_secdiscard;
      unsigned int feature_persistent;
      unsigned int discard_granularity;
      unsigned int discard_alignment;
      unsigned int max_indirect_segments;
      int is_ready;
      struct blk_mq_tag_set tag_set;
      struct blkfront_ring_info *rinfo;
      unsigned int nr_rings;
      struct list_head requests;
      struct bio_list bio_list;
  };
  

• In 4.13: ✅

  struct blkfront_info {
      struct mutex mutex;
      struct xenbus_device *xbdev;
      struct gendisk *gd;
      u16 sector_size;
      unsigned int physical_sector_size;
      int vdevice;
      blkif_vdev_t handle;
      enum blkif_state connected;
      unsigned int nr_ring_pages;
      struct request_queue *rq;
      unsigned int feature_flush;
      unsigned int feature_fua;
      unsigned int feature_discard;
      unsigned int feature_secdiscard;
      unsigned int feature_persistent;
      unsigned int discard_granularity;
      unsigned int discard_alignment;
      unsigned int max_indirect_segments;
      int is_ready;
      struct blk_mq_tag_set tag_set;
      struct blkfront_ring_info *rinfo;
      unsigned int nr_rings;
      struct list_head requests;
      struct bio_list bio_list;
  };
  

• In 4.15: ✅

  struct blkfront_info {
      struct mutex mutex;
      struct xenbus_device *xbdev;
      struct gendisk *gd;
      u16 sector_size;
      unsigned int physical_sector_size;
      int vdevice;
      blkif_vdev_t handle;
      enum blkif_state connected;
      unsigned int nr_ring_pages;
      struct request_queue *rq;
      unsigned int feature_flush;
      unsigned int feature_fua;
      unsigned int feature_discard;
      unsigned int feature_secdiscard;
      unsigned int feature_persistent;
      unsigned int discard_granularity;
      unsigned int discard_alignment;
      unsigned int max_indirect_segments;
      int is_ready;
      struct blk_mq_tag_set tag_set;
      struct blkfront_ring_info *rinfo;
      unsigned int nr_rings;
      struct list_head requests;
      struct bio_list bio_list;
  };
  

• In 4.18: ✅

  struct blkfront_info {
      struct mutex mutex;
      struct xenbus_device *xbdev;
      struct gendisk *gd;
      u16 sector_size;
      unsigned int physical_sector_size;
      int vdevice;
      blkif_vdev_t handle;
      enum blkif_state connected;
      unsigned int nr_ring_pages;
      struct request_queue *rq;
      unsigned int feature_flush;
      unsigned int feature_fua;
      unsigned int feature_discard;
      unsigned int feature_secdiscard;
      unsigned int feature_persistent;
      unsigned int discard_granularity;
      unsigned int discard_alignment;
      unsigned int max_indirect_segments;
      int is_ready;
      struct blk_mq_tag_set tag_set;
      struct blkfront_ring_info *rinfo;
      unsigned int nr_rings;
      struct list_head requests;
      struct bio_list bio_list;
  };
  

• In 5.0: ✅

  struct blkfront_info {
      struct mutex mutex;
      struct xenbus_device *xbdev;
      struct gendisk *gd;
      u16 sector_size;
      unsigned int physical_sector_size;
      int vdevice;
      blkif_vdev_t handle;
      enum blkif_state connected;
      unsigned int nr_ring_pages;
      struct request_queue *rq;
      unsigned int feature_flush;
      unsigned int feature_fua;
      unsigned int feature_discard;
      unsigned int feature_secdiscard;
      unsigned int feature_persistent;
      unsigned int discard_granularity;
      unsigned int discard_alignment;
      unsigned int max_indirect_segments;
      int is_ready;
      struct blk_mq_tag_set tag_set;
      struct blkfront_ring_info *rinfo;
      unsigned int nr_rings;
      struct list_head requests;
      struct bio_list bio_list;
      struct list_head info_list;
  };
  

• In 5.3: ✅

  struct blkfront_info {
      struct mutex mutex;
      struct xenbus_device *xbdev;
      struct gendisk *gd;
      u16 sector_size;
      unsigned int physical_sector_size;
      int vdevice;
      blkif_vdev_t handle;
      enum blkif_state connected;
      unsigned int nr_ring_pages;
      struct request_queue *rq;
      unsigned int feature_flush;
      unsigned int feature_fua;
      unsigned int feature_discard;
      unsigned int feature_secdiscard;
      unsigned int feature_persistent;
      unsigned int discard_granularity;
      unsigned int discard_alignment;
      unsigned int max_indirect_segments;
      int is_ready;
      struct blk_mq_tag_set tag_set;
      struct blkfront_ring_info *rinfo;
      unsigned int nr_rings;
      struct list_head requests;
      struct bio_list bio_list;
      struct list_head info_list;
  };
  

• In 5.4: ✅

  struct blkfront_info {
      struct mutex mutex;
      struct xenbus_device *xbdev;
      struct gendisk *gd;
      u16 sector_size;
      unsigned int physical_sector_size;
      int vdevice;
      blkif_vdev_t handle;
      enum blkif_state connected;
      unsigned int nr_ring_pages;
      struct request_queue *rq;
      unsigned int feature_flush;
      unsigned int feature_fua;
      unsigned int feature_discard;
      unsigned int feature_secdiscard;
      unsigned int feature_persistent;
      unsigned int discard_granularity;
      unsigned int discard_alignment;
      unsigned int max_indirect_segments;
      int is_ready;
      struct blk_mq_tag_set tag_set;
      struct blkfront_ring_info *rinfo;
      unsigned int nr_rings;
      struct list_head requests;
      struct bio_list bio_list;
      struct list_head info_list;
  };
  

• In 5.8: ✅

  struct blkfront_info {
      struct mutex mutex;
      struct xenbus_device *xbdev;
      struct gendisk *gd;
      u16 sector_size;
      unsigned int physical_sector_size;
      int vdevice;
      blkif_vdev_t handle;
      enum blkif_state connected;
      unsigned int nr_ring_pages;
      struct request_queue *rq;
      unsigned int feature_flush;
      unsigned int feature_fua;
      unsigned int feature_discard;
      unsigned int feature_secdiscard;
      unsigned int feature_persistent;
      unsigned int discard_granularity;
      unsigned int discard_alignment;
      unsigned int max_indirect_segments;
      int is_ready;
      struct blk_mq_tag_set tag_set;
      struct blkfront_ring_info *rinfo;
      unsigned int nr_rings;
      unsigned int rinfo_size;
      struct list_head requests;
      struct bio_list bio_list;
      struct list_head info_list;
  };
  

• In 5.11: ✅

  struct blkfront_info {
      struct mutex mutex;
      struct xenbus_device *xbdev;
      struct gendisk *gd;
      u16 sector_size;
      unsigned int physical_sector_size;
      int vdevice;
      blkif_vdev_t handle;
      enum blkif_state connected;
      unsigned int nr_ring_pages;
      struct request_queue *rq;
      unsigned int feature_flush;
      unsigned int feature_fua;
      unsigned int feature_discard;
      unsigned int feature_secdiscard;
      unsigned int feature_persistent;
      unsigned int discard_granularity;
      unsigned int discard_alignment;
      unsigned int max_indirect_segments;
      int is_ready;
      struct blk_mq_tag_set tag_set;
      struct blkfront_ring_info *rinfo;
      unsigned int nr_rings;
      unsigned int rinfo_size;
      struct list_head requests;
      struct bio_list bio_list;
      struct list_head info_list;
  };
  

• In 5.13: ✅

  struct blkfront_info {
      struct mutex mutex;
      struct xenbus_device *xbdev;
      struct gendisk *gd;
      u16 sector_size;
      unsigned int physical_sector_size;
      int vdevice;
      blkif_vdev_t handle;
      enum blkif_state connected;
      unsigned int nr_ring_pages;
      struct request_queue *rq;
      unsigned int feature_flush;
      unsigned int feature_fua;
      unsigned int feature_discard;
      unsigned int feature_secdiscard;
      unsigned int feature_persistent;
      unsigned int discard_granularity;
      unsigned int discard_alignment;
      unsigned int max_indirect_segments;
      int is_ready;
      struct blk_mq_tag_set tag_set;
      struct blkfront_ring_info *rinfo;
      unsigned int nr_rings;
      unsigned int rinfo_size;
      struct list_head requests;
      struct bio_list bio_list;
      struct list_head info_list;
  };
  

• In 5.15: ✅

  struct blkfront_info {
      struct mutex mutex;
      struct xenbus_device *xbdev;
      struct gendisk *gd;
      u16 sector_size;
      unsigned int physical_sector_size;
      int vdevice;
      blkif_vdev_t handle;
      enum blkif_state connected;
      unsigned int nr_ring_pages;
      struct request_queue *rq;
      unsigned int feature_flush;
      unsigned int feature_fua;
      unsigned int feature_discard;
      unsigned int feature_secdiscard;
      unsigned int feature_persistent;
      unsigned int discard_granularity;
      unsigned int discard_alignment;
      unsigned int max_indirect_segments;
      int is_ready;
      struct blk_mq_tag_set tag_set;
      struct blkfront_ring_info *rinfo;
      unsigned int nr_rings;
      unsigned int rinfo_size;
      struct list_head requests;
      struct bio_list bio_list;
      struct list_head info_list;
  };
  

• In 5.19: ✅

  struct blkfront_info {
      struct mutex mutex;
      struct xenbus_device *xbdev;
      struct gendisk *gd;
      u16 sector_size;
      unsigned int physical_sector_size;
      long unsigned int vdisk_info;
      int vdevice;
      blkif_vdev_t handle;
      enum blkif_state connected;
      unsigned int nr_ring_pages;
      struct request_queue *rq;
      unsigned int feature_flush;
      unsigned int feature_fua;
      unsigned int feature_discard;
      unsigned int feature_secdiscard;
      unsigned int feature_persistent;
      unsigned int bounce;
      unsigned int discard_granularity;
      unsigned int discard_alignment;
      unsigned int max_indirect_segments;
      int is_ready;
      struct blk_mq_tag_set tag_set;
      struct blkfront_ring_info *rinfo;
      unsigned int nr_rings;
      unsigned int rinfo_size;
      struct list_head requests;
      struct bio_list bio_list;
      struct list_head info_list;
  };
  

• In 6.2: ✅

  struct blkfront_info {
      struct mutex mutex;
      struct xenbus_device *xbdev;
      struct gendisk *gd;
      u16 sector_size;
      unsigned int physical_sector_size;
      long unsigned int vdisk_info;
      int vdevice;
      blkif_vdev_t handle;
      enum blkif_state connected;
      unsigned int nr_ring_pages;
      struct request_queue *rq;
      unsigned int feature_flush;
      unsigned int feature_fua;
      unsigned int feature_discard;
      unsigned int feature_secdiscard;
      unsigned int feature_persistent_parm;
      unsigned int feature_persistent;
      unsigned int bounce;
      unsigned int discard_granularity;
      unsigned int discard_alignment;
      unsigned int max_indirect_segments;
      int is_ready;
      struct blk_mq_tag_set tag_set;
      struct blkfront_ring_info *rinfo;
      unsigned int nr_rings;
      unsigned int rinfo_size;
      struct list_head requests;
      struct bio_list bio_list;
      struct list_head info_list;
  };
  

• In 6.5: ✅

  struct blkfront_info {
      struct mutex mutex;
      struct xenbus_device *xbdev;
      struct gendisk *gd;
      u16 sector_size;
      unsigned int physical_sector_size;
      long unsigned int vdisk_info;
      int vdevice;
      blkif_vdev_t handle;
      enum blkif_state connected;
      unsigned int nr_ring_pages;
      struct request_queue *rq;
      unsigned int feature_flush;
      unsigned int feature_fua;
      unsigned int feature_discard;
      unsigned int feature_secdiscard;
      unsigned int feature_persistent_parm;
      unsigned int feature_persistent;
      unsigned int bounce;
      unsigned int discard_granularity;
      unsigned int discard_alignment;
      unsigned int max_indirect_segments;
      int is_ready;
      struct blk_mq_tag_set tag_set;
      struct blkfront_ring_info *rinfo;
      unsigned int nr_rings;
      unsigned int rinfo_size;
      struct list_head requests;
      struct bio_list bio_list;
      struct list_head info_list;
  };
  

• In 6.8: ✅

  struct blkfront_info {
      struct mutex mutex;
      struct xenbus_device *xbdev;
      struct gendisk *gd;
      u16 sector_size;
      unsigned int physical_sector_size;
      long unsigned int vdisk_info;
      int vdevice;
      blkif_vdev_t handle;
      enum blkif_state connected;
      unsigned int nr_ring_pages;
      struct request_queue *rq;
      unsigned int feature_flush;
      unsigned int feature_fua;
      unsigned int feature_discard;
      unsigned int feature_secdiscard;
      unsigned int feature_persistent_parm;
      unsigned int feature_persistent;
      unsigned int bounce;
      unsigned int discard_granularity;
      unsigned int discard_alignment;
      unsigned int max_indirect_segments;
      int is_ready;
      struct blk_mq_tag_set tag_set;
      struct blkfront_ring_info *rinfo;
      unsigned int nr_rings;
      unsigned int rinfo_size;
      struct list_head requests;
      struct bio_list bio_list;
      struct list_head info_list;
  };
  

Arch

• In arm64: ✅

  struct blkfront_info {
      struct mutex mutex;
      struct xenbus_device *xbdev;
      struct gendisk *gd;
      u16 sector_size;
      unsigned int physical_sector_size;
      int vdevice;
      blkif_vdev_t handle;
      enum blkif_state connected;
      unsigned int nr_ring_pages;
      struct request_queue *rq;
      unsigned int feature_flush;
      unsigned int feature_fua;
      unsigned int feature_discard;
      unsigned int feature_secdiscard;
      unsigned int feature_persistent;
      unsigned int discard_granularity;
      unsigned int discard_alignment;
      unsigned int max_indirect_segments;
      int is_ready;
      struct blk_mq_tag_set tag_set;
      struct blkfront_ring_info *rinfo;
      unsigned int nr_rings;
      struct list_head requests;
      struct bio_list bio_list;
      struct list_head info_list;
  };
  

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

Flavor

• In aws: ✅

  struct blkfront_info {
      struct mutex mutex;
      struct xenbus_device *xbdev;
      struct gendisk *gd;
      u16 sector_size;
      unsigned int physical_sector_size;
      int vdevice;
      blkif_vdev_t handle;
      enum blkif_state connected;
      unsigned int nr_ring_pages;
      struct request_queue *rq;
      unsigned int feature_flush;
      unsigned int feature_fua;
      unsigned int feature_discard;
      unsigned int feature_secdiscard;
      unsigned int feature_persistent;
      unsigned int discard_granularity;
      unsigned int discard_alignment;
      unsigned int max_indirect_segments;
      int is_ready;
      struct blk_mq_tag_set tag_set;
      struct blkfront_ring_info *rinfo;
      unsigned int nr_rings;
      struct list_head requests;
      struct bio_list bio_list;
      struct list_head info_list;
      struct completion wait_backend_disconnected;
  };
  

• In azure: Absent ⚠️
• In gcp: ✅

  struct blkfront_info {
      struct mutex mutex;
      struct xenbus_device *xbdev;
      struct gendisk *gd;
      u16 sector_size;
      unsigned int physical_sector_size;
      int vdevice;
      blkif_vdev_t handle;
      enum blkif_state connected;
      unsigned int nr_ring_pages;
      struct request_queue *rq;
      unsigned int feature_flush;
      unsigned int feature_fua;
      unsigned int feature_discard;
      unsigned int feature_secdiscard;
      unsigned int feature_persistent;
      unsigned int discard_granularity;
      unsigned int discard_alignment;
      unsigned int max_indirect_segments;
      int is_ready;
      struct blk_mq_tag_set tag_set;
      struct blkfront_ring_info *rinfo;
      unsigned int nr_rings;
      struct list_head requests;
      struct bio_list bio_list;
      struct list_head info_list;
  };
  

• In lowlatency: ✅

  struct blkfront_info {
      struct mutex mutex;
      struct xenbus_device *xbdev;
      struct gendisk *gd;
      u16 sector_size;
      unsigned int physical_sector_size;
      int vdevice;
      blkif_vdev_t handle;
      enum blkif_state connected;
      unsigned int nr_ring_pages;
      struct request_queue *rq;
      unsigned int feature_flush;
      unsigned int feature_fua;
      unsigned int feature_discard;
      unsigned int feature_secdiscard;
      unsigned int feature_persistent;
      unsigned int discard_granularity;
      unsigned int discard_alignment;
      unsigned int max_indirect_segments;
      int is_ready;
      struct blk_mq_tag_set tag_set;
      struct blkfront_ring_info *rinfo;
      unsigned int nr_rings;
      struct list_head requests;
      struct bio_list bio_list;
      struct list_head info_list;
  };
  

Differences

Regular

• Changed between 4.4 and 4.8 ⚠️

  • Field added. u16 sector_size
  • Field added. unsigned int physical_sector_size
  • Field added. unsigned int feature_fua
  • Field added. struct blkfront_ring_info *rinfo
  • Field added. unsigned int nr_rings
  • Field added. struct list_head requests
  • Field added. struct bio_list bio_list
  • Field removed. spinlock_t io_lock
  • Field removed. int ring_ref[16]
  • Field removed. struct blkif_front_ring ring
  • Field removed. unsigned int evtchn
  • Field removed. unsigned int irq
  • Field removed. struct work_struct work
  • Field removed. struct gnttab_free_callback callback
  • Field removed. struct blk_shadow shadow[512]
  • Field removed. struct list_head grants
  • Field removed. struct list_head indirect_pages
  • Field removed. unsigned int persistent_gnts_c
  • Field removed. long unsigned int shadow_free
• 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 ✅
• Changed between 4.18 and 5.0 ⚠️

  • Field added. struct list_head info_list
• No changes between 5.0 and 5.3 ✅
• No changes between 5.3 and 5.4 ✅
• Changed between 5.4 and 5.8 ⚠️

  • Field added. unsigned int rinfo_size
• 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 added. long unsigned int vdisk_info
  • Field added. unsigned int bounce
• Changed between 5.19 and 6.2 ⚠️

  • Field added. unsigned int feature_persistent_parm
• No changes between 6.2 and 6.5 ✅
• No changes between 6.5 and 6.8 ✅

Arch

• No changes between amd64 and arm64 ✅

Flavor

• Changed between generic and aws ⚠️

  • Field added. struct completion wait_backend_disconnected
• No changes between generic and gcp ✅
• No changes between generic and lowlatency ✅