website-struct

Struct: ring_buffer_per_cpu

Status

Regular

• In 4.4: ✅

  struct ring_buffer_per_cpu {
      int cpu;
      atomic_t record_disabled;
      struct ring_buffer *buffer;
      raw_spinlock_t reader_lock;
      arch_spinlock_t lock;
      struct lock_class_key lock_key;
      unsigned int nr_pages;
      unsigned int current_context;
      struct list_head *pages;
      struct buffer_page *head_page;
      struct buffer_page *tail_page;
      struct buffer_page *commit_page;
      struct buffer_page *reader_page;
      long unsigned int lost_events;
      long unsigned int last_overrun;
      local_t entries_bytes;
      local_t entries;
      local_t overrun;
      local_t commit_overrun;
      local_t dropped_events;
      local_t committing;
      local_t commits;
      long unsigned int read;
      long unsigned int read_bytes;
      u64 write_stamp;
      u64 read_stamp;
      int nr_pages_to_update;
      struct list_head new_pages;
      struct work_struct update_pages_work;
      struct completion update_done;
      struct rb_irq_work irq_work;
  };
  

• In 4.8: ✅

  struct ring_buffer_per_cpu {
      int cpu;
      atomic_t record_disabled;
      struct ring_buffer *buffer;
      raw_spinlock_t reader_lock;
      arch_spinlock_t lock;
      struct lock_class_key lock_key;
      long unsigned int nr_pages;
      unsigned int current_context;
      struct list_head *pages;
      struct buffer_page *head_page;
      struct buffer_page *tail_page;
      struct buffer_page *commit_page;
      struct buffer_page *reader_page;
      long unsigned int lost_events;
      long unsigned int last_overrun;
      local_t entries_bytes;
      local_t entries;
      local_t overrun;
      local_t commit_overrun;
      local_t dropped_events;
      local_t committing;
      local_t commits;
      long unsigned int read;
      long unsigned int read_bytes;
      u64 write_stamp;
      u64 read_stamp;
      long int nr_pages_to_update;
      struct list_head new_pages;
      struct work_struct update_pages_work;
      struct completion update_done;
      struct rb_irq_work irq_work;
  };
  

• In 4.10: ✅

  struct ring_buffer_per_cpu {
      int cpu;
      atomic_t record_disabled;
      struct ring_buffer *buffer;
      raw_spinlock_t reader_lock;
      arch_spinlock_t lock;
      struct lock_class_key lock_key;
      long unsigned int nr_pages;
      unsigned int current_context;
      struct list_head *pages;
      struct buffer_page *head_page;
      struct buffer_page *tail_page;
      struct buffer_page *commit_page;
      struct buffer_page *reader_page;
      long unsigned int lost_events;
      long unsigned int last_overrun;
      local_t entries_bytes;
      local_t entries;
      local_t overrun;
      local_t commit_overrun;
      local_t dropped_events;
      local_t committing;
      local_t commits;
      long unsigned int read;
      long unsigned int read_bytes;
      u64 write_stamp;
      u64 read_stamp;
      long int nr_pages_to_update;
      struct list_head new_pages;
      struct work_struct update_pages_work;
      struct completion update_done;
      struct rb_irq_work irq_work;
  };
  

• In 4.13: ✅

  struct ring_buffer_per_cpu {
      int cpu;
      atomic_t record_disabled;
      struct ring_buffer *buffer;
      raw_spinlock_t reader_lock;
      arch_spinlock_t lock;
      struct lock_class_key lock_key;
      struct buffer_data_page *free_page;
      long unsigned int nr_pages;
      unsigned int current_context;
      struct list_head *pages;
      struct buffer_page *head_page;
      struct buffer_page *tail_page;
      struct buffer_page *commit_page;
      struct buffer_page *reader_page;
      long unsigned int lost_events;
      long unsigned int last_overrun;
      local_t entries_bytes;
      local_t entries;
      local_t overrun;
      local_t commit_overrun;
      local_t dropped_events;
      local_t committing;
      local_t commits;
      long unsigned int read;
      long unsigned int read_bytes;
      u64 write_stamp;
      u64 read_stamp;
      long int nr_pages_to_update;
      struct list_head new_pages;
      struct work_struct update_pages_work;
      struct completion update_done;
      struct rb_irq_work irq_work;
  };
  

• In 4.15: ✅

  struct ring_buffer_per_cpu {
      int cpu;
      atomic_t record_disabled;
      struct ring_buffer *buffer;
      raw_spinlock_t reader_lock;
      arch_spinlock_t lock;
      struct lock_class_key lock_key;
      struct buffer_data_page *free_page;
      long unsigned int nr_pages;
      unsigned int current_context;
      struct list_head *pages;
      struct buffer_page *head_page;
      struct buffer_page *tail_page;
      struct buffer_page *commit_page;
      struct buffer_page *reader_page;
      long unsigned int lost_events;
      long unsigned int last_overrun;
      local_t entries_bytes;
      local_t entries;
      local_t overrun;
      local_t commit_overrun;
      local_t dropped_events;
      local_t committing;
      local_t commits;
      long unsigned int read;
      long unsigned int read_bytes;
      u64 write_stamp;
      u64 read_stamp;
      long int nr_pages_to_update;
      struct list_head new_pages;
      struct work_struct update_pages_work;
      struct completion update_done;
      struct rb_irq_work irq_work;
  };
  

• In 4.18: ✅

  struct ring_buffer_per_cpu {
      int cpu;
      atomic_t record_disabled;
      struct ring_buffer *buffer;
      raw_spinlock_t reader_lock;
      arch_spinlock_t lock;
      struct lock_class_key lock_key;
      struct buffer_data_page *free_page;
      long unsigned int nr_pages;
      unsigned int current_context;
      struct list_head *pages;
      struct buffer_page *head_page;
      struct buffer_page *tail_page;
      struct buffer_page *commit_page;
      struct buffer_page *reader_page;
      long unsigned int lost_events;
      long unsigned int last_overrun;
      long unsigned int nest;
      local_t entries_bytes;
      local_t entries;
      local_t overrun;
      local_t commit_overrun;
      local_t dropped_events;
      local_t committing;
      local_t commits;
      long unsigned int read;
      long unsigned int read_bytes;
      u64 write_stamp;
      u64 read_stamp;
      long int nr_pages_to_update;
      struct list_head new_pages;
      struct work_struct update_pages_work;
      struct completion update_done;
      struct rb_irq_work irq_work;
  };
  

• In 5.0: ✅

  struct ring_buffer_per_cpu {
      int cpu;
      atomic_t record_disabled;
      struct ring_buffer *buffer;
      raw_spinlock_t reader_lock;
      arch_spinlock_t lock;
      struct lock_class_key lock_key;
      struct buffer_data_page *free_page;
      long unsigned int nr_pages;
      unsigned int current_context;
      struct list_head *pages;
      struct buffer_page *head_page;
      struct buffer_page *tail_page;
      struct buffer_page *commit_page;
      struct buffer_page *reader_page;
      long unsigned int lost_events;
      long unsigned int last_overrun;
      long unsigned int nest;
      local_t entries_bytes;
      local_t entries;
      local_t overrun;
      local_t commit_overrun;
      local_t dropped_events;
      local_t committing;
      local_t commits;
      local_t pages_touched;
      local_t pages_read;
      long int last_pages_touch;
      size_t shortest_full;
      long unsigned int read;
      long unsigned int read_bytes;
      u64 write_stamp;
      u64 read_stamp;
      long int nr_pages_to_update;
      struct list_head new_pages;
      struct work_struct update_pages_work;
      struct completion update_done;
      struct rb_irq_work irq_work;
  };
  

• In 5.3: ✅

  struct ring_buffer_per_cpu {
      int cpu;
      atomic_t record_disabled;
      struct ring_buffer *buffer;
      raw_spinlock_t reader_lock;
      arch_spinlock_t lock;
      struct lock_class_key lock_key;
      struct buffer_data_page *free_page;
      long unsigned int nr_pages;
      unsigned int current_context;
      struct list_head *pages;
      struct buffer_page *head_page;
      struct buffer_page *tail_page;
      struct buffer_page *commit_page;
      struct buffer_page *reader_page;
      long unsigned int lost_events;
      long unsigned int last_overrun;
      long unsigned int nest;
      local_t entries_bytes;
      local_t entries;
      local_t overrun;
      local_t commit_overrun;
      local_t dropped_events;
      local_t committing;
      local_t commits;
      local_t pages_touched;
      local_t pages_read;
      long int last_pages_touch;
      size_t shortest_full;
      long unsigned int read;
      long unsigned int read_bytes;
      u64 write_stamp;
      u64 read_stamp;
      long int nr_pages_to_update;
      struct list_head new_pages;
      struct work_struct update_pages_work;
      struct completion update_done;
      struct rb_irq_work irq_work;
  };
  

• In 5.4: ✅

  struct ring_buffer_per_cpu {
      int cpu;
      atomic_t record_disabled;
      struct ring_buffer *buffer;
      raw_spinlock_t reader_lock;
      arch_spinlock_t lock;
      struct lock_class_key lock_key;
      struct buffer_data_page *free_page;
      long unsigned int nr_pages;
      unsigned int current_context;
      struct list_head *pages;
      struct buffer_page *head_page;
      struct buffer_page *tail_page;
      struct buffer_page *commit_page;
      struct buffer_page *reader_page;
      long unsigned int lost_events;
      long unsigned int last_overrun;
      long unsigned int nest;
      local_t entries_bytes;
      local_t entries;
      local_t overrun;
      local_t commit_overrun;
      local_t dropped_events;
      local_t committing;
      local_t commits;
      local_t pages_touched;
      local_t pages_read;
      long int last_pages_touch;
      size_t shortest_full;
      long unsigned int read;
      long unsigned int read_bytes;
      u64 write_stamp;
      u64 read_stamp;
      long int nr_pages_to_update;
      struct list_head new_pages;
      struct work_struct update_pages_work;
      struct completion update_done;
      struct rb_irq_work irq_work;
  };
  

• In 5.8: ✅

  struct ring_buffer_per_cpu {
      int cpu;
      atomic_t record_disabled;
      atomic_t resize_disabled;
      struct trace_buffer *buffer;
      raw_spinlock_t reader_lock;
      arch_spinlock_t lock;
      struct lock_class_key lock_key;
      struct buffer_data_page *free_page;
      long unsigned int nr_pages;
      unsigned int current_context;
      struct list_head *pages;
      struct buffer_page *head_page;
      struct buffer_page *tail_page;
      struct buffer_page *commit_page;
      struct buffer_page *reader_page;
      long unsigned int lost_events;
      long unsigned int last_overrun;
      long unsigned int nest;
      local_t entries_bytes;
      local_t entries;
      local_t overrun;
      local_t commit_overrun;
      local_t dropped_events;
      local_t committing;
      local_t commits;
      local_t pages_touched;
      local_t pages_read;
      long int last_pages_touch;
      size_t shortest_full;
      long unsigned int read;
      long unsigned int read_bytes;
      u64 write_stamp;
      u64 read_stamp;
      long int nr_pages_to_update;
      struct list_head new_pages;
      struct work_struct update_pages_work;
      struct completion update_done;
      struct rb_irq_work irq_work;
  };
  

• In 5.11: ✅

  struct ring_buffer_per_cpu {
      int cpu;
      atomic_t record_disabled;
      atomic_t resize_disabled;
      struct trace_buffer *buffer;
      raw_spinlock_t reader_lock;
      arch_spinlock_t lock;
      struct lock_class_key lock_key;
      struct buffer_data_page *free_page;
      long unsigned int nr_pages;
      unsigned int current_context;
      struct list_head *pages;
      struct buffer_page *head_page;
      struct buffer_page *tail_page;
      struct buffer_page *commit_page;
      struct buffer_page *reader_page;
      long unsigned int lost_events;
      long unsigned int last_overrun;
      long unsigned int nest;
      local_t entries_bytes;
      local_t entries;
      local_t overrun;
      local_t commit_overrun;
      local_t dropped_events;
      local_t committing;
      local_t commits;
      local_t pages_touched;
      local_t pages_read;
      long int last_pages_touch;
      size_t shortest_full;
      long unsigned int read;
      long unsigned int read_bytes;
      rb_time_t write_stamp;
      rb_time_t before_stamp;
      u64 read_stamp;
      long int nr_pages_to_update;
      struct list_head new_pages;
      struct work_struct update_pages_work;
      struct completion update_done;
      struct rb_irq_work irq_work;
  };
  

• In 5.13: ✅

  struct ring_buffer_per_cpu {
      int cpu;
      atomic_t record_disabled;
      atomic_t resize_disabled;
      struct trace_buffer *buffer;
      raw_spinlock_t reader_lock;
      arch_spinlock_t lock;
      struct lock_class_key lock_key;
      struct buffer_data_page *free_page;
      long unsigned int nr_pages;
      unsigned int current_context;
      struct list_head *pages;
      struct buffer_page *head_page;
      struct buffer_page *tail_page;
      struct buffer_page *commit_page;
      struct buffer_page *reader_page;
      long unsigned int lost_events;
      long unsigned int last_overrun;
      long unsigned int nest;
      local_t entries_bytes;
      local_t entries;
      local_t overrun;
      local_t commit_overrun;
      local_t dropped_events;
      local_t committing;
      local_t commits;
      local_t pages_touched;
      local_t pages_read;
      long int last_pages_touch;
      size_t shortest_full;
      long unsigned int read;
      long unsigned int read_bytes;
      rb_time_t write_stamp;
      rb_time_t before_stamp;
      u64 event_stamp[5];
      u64 read_stamp;
      long int nr_pages_to_update;
      struct list_head new_pages;
      struct work_struct update_pages_work;
      struct completion update_done;
      struct rb_irq_work irq_work;
  };
  

• In 5.15: ✅

  struct ring_buffer_per_cpu {
      int cpu;
      atomic_t record_disabled;
      atomic_t resize_disabled;
      struct trace_buffer *buffer;
      raw_spinlock_t reader_lock;
      arch_spinlock_t lock;
      struct lock_class_key lock_key;
      struct buffer_data_page *free_page;
      long unsigned int nr_pages;
      unsigned int current_context;
      struct list_head *pages;
      struct buffer_page *head_page;
      struct buffer_page *tail_page;
      struct buffer_page *commit_page;
      struct buffer_page *reader_page;
      long unsigned int lost_events;
      long unsigned int last_overrun;
      long unsigned int nest;
      local_t entries_bytes;
      local_t entries;
      local_t overrun;
      local_t commit_overrun;
      local_t dropped_events;
      local_t committing;
      local_t commits;
      local_t pages_touched;
      local_t pages_read;
      long int last_pages_touch;
      size_t shortest_full;
      long unsigned int read;
      long unsigned int read_bytes;
      rb_time_t write_stamp;
      rb_time_t before_stamp;
      u64 event_stamp[5];
      u64 read_stamp;
      long int nr_pages_to_update;
      struct list_head new_pages;
      struct work_struct update_pages_work;
      struct completion update_done;
      struct rb_irq_work irq_work;
  };
  

• In 5.19: ✅

  struct ring_buffer_per_cpu {
      int cpu;
      atomic_t record_disabled;
      atomic_t resize_disabled;
      struct trace_buffer *buffer;
      raw_spinlock_t reader_lock;
      arch_spinlock_t lock;
      struct lock_class_key lock_key;
      struct buffer_data_page *free_page;
      long unsigned int nr_pages;
      unsigned int current_context;
      struct list_head *pages;
      struct buffer_page *head_page;
      struct buffer_page *tail_page;
      struct buffer_page *commit_page;
      struct buffer_page *reader_page;
      long unsigned int lost_events;
      long unsigned int last_overrun;
      long unsigned int nest;
      local_t entries_bytes;
      local_t entries;
      local_t overrun;
      local_t commit_overrun;
      local_t dropped_events;
      local_t committing;
      local_t commits;
      local_t pages_touched;
      local_t pages_read;
      long int last_pages_touch;
      size_t shortest_full;
      long unsigned int read;
      long unsigned int read_bytes;
      rb_time_t write_stamp;
      rb_time_t before_stamp;
      u64 event_stamp[5];
      u64 read_stamp;
      long int nr_pages_to_update;
      struct list_head new_pages;
      struct work_struct update_pages_work;
      struct completion update_done;
      struct rb_irq_work irq_work;
  };
  

• In 6.2: ✅

  struct ring_buffer_per_cpu {
      int cpu;
      atomic_t record_disabled;
      atomic_t resize_disabled;
      struct trace_buffer *buffer;
      raw_spinlock_t reader_lock;
      arch_spinlock_t lock;
      struct lock_class_key lock_key;
      struct buffer_data_page *free_page;
      long unsigned int nr_pages;
      unsigned int current_context;
      struct list_head *pages;
      struct buffer_page *head_page;
      struct buffer_page *tail_page;
      struct buffer_page *commit_page;
      struct buffer_page *reader_page;
      long unsigned int lost_events;
      long unsigned int last_overrun;
      long unsigned int nest;
      local_t entries_bytes;
      local_t entries;
      local_t overrun;
      local_t commit_overrun;
      local_t dropped_events;
      local_t committing;
      local_t commits;
      local_t pages_touched;
      local_t pages_lost;
      local_t pages_read;
      long int last_pages_touch;
      size_t shortest_full;
      long unsigned int read;
      long unsigned int read_bytes;
      rb_time_t write_stamp;
      rb_time_t before_stamp;
      u64 event_stamp[5];
      u64 read_stamp;
      long int nr_pages_to_update;
      struct list_head new_pages;
      struct work_struct update_pages_work;
      struct completion update_done;
      struct rb_irq_work irq_work;
  };
  

• In 6.5: ✅

  struct ring_buffer_per_cpu {
      int cpu;
      atomic_t record_disabled;
      atomic_t resize_disabled;
      struct trace_buffer *buffer;
      raw_spinlock_t reader_lock;
      arch_spinlock_t lock;
      struct lock_class_key lock_key;
      struct buffer_data_page *free_page;
      long unsigned int nr_pages;
      unsigned int current_context;
      struct list_head *pages;
      struct buffer_page *head_page;
      struct buffer_page *tail_page;
      struct buffer_page *commit_page;
      struct buffer_page *reader_page;
      long unsigned int lost_events;
      long unsigned int last_overrun;
      long unsigned int nest;
      local_t entries_bytes;
      local_t entries;
      local_t overrun;
      local_t commit_overrun;
      local_t dropped_events;
      local_t committing;
      local_t commits;
      local_t pages_touched;
      local_t pages_lost;
      local_t pages_read;
      long int last_pages_touch;
      size_t shortest_full;
      long unsigned int read;
      long unsigned int read_bytes;
      rb_time_t write_stamp;
      rb_time_t before_stamp;
      u64 event_stamp[5];
      u64 read_stamp;
      long unsigned int pages_removed;
      long int nr_pages_to_update;
      struct list_head new_pages;
      struct work_struct update_pages_work;
      struct completion update_done;
      struct rb_irq_work irq_work;
  };
  

• In 6.8: ✅

  struct ring_buffer_per_cpu {
      int cpu;
      atomic_t record_disabled;
      atomic_t resize_disabled;
      struct trace_buffer *buffer;
      raw_spinlock_t reader_lock;
      arch_spinlock_t lock;
      struct lock_class_key lock_key;
      struct buffer_data_page *free_page;
      long unsigned int nr_pages;
      unsigned int current_context;
      struct list_head *pages;
      struct buffer_page *head_page;
      struct buffer_page *tail_page;
      struct buffer_page *commit_page;
      struct buffer_page *reader_page;
      long unsigned int lost_events;
      long unsigned int last_overrun;
      long unsigned int nest;
      local_t entries_bytes;
      local_t entries;
      local_t overrun;
      local_t commit_overrun;
      local_t dropped_events;
      local_t committing;
      local_t commits;
      local_t pages_touched;
      local_t pages_lost;
      local_t pages_read;
      long int last_pages_touch;
      size_t shortest_full;
      long unsigned int read;
      long unsigned int read_bytes;
      rb_time_t write_stamp;
      rb_time_t before_stamp;
      u64 event_stamp[5];
      u64 read_stamp;
      long unsigned int pages_removed;
      long int nr_pages_to_update;
      struct list_head new_pages;
      struct work_struct update_pages_work;
      struct completion update_done;
      struct rb_irq_work irq_work;
  };
  

Arch

• In arm64: ✅

  struct ring_buffer_per_cpu {
      int cpu;
      atomic_t record_disabled;
      struct ring_buffer *buffer;
      raw_spinlock_t reader_lock;
      arch_spinlock_t lock;
      struct lock_class_key lock_key;
      struct buffer_data_page *free_page;
      long unsigned int nr_pages;
      unsigned int current_context;
      struct list_head *pages;
      struct buffer_page *head_page;
      struct buffer_page *tail_page;
      struct buffer_page *commit_page;
      struct buffer_page *reader_page;
      long unsigned int lost_events;
      long unsigned int last_overrun;
      long unsigned int nest;
      local_t entries_bytes;
      local_t entries;
      local_t overrun;
      local_t commit_overrun;
      local_t dropped_events;
      local_t committing;
      local_t commits;
      local_t pages_touched;
      local_t pages_read;
      long int last_pages_touch;
      size_t shortest_full;
      long unsigned int read;
      long unsigned int read_bytes;
      u64 write_stamp;
      u64 read_stamp;
      long int nr_pages_to_update;
      struct list_head new_pages;
      struct work_struct update_pages_work;
      struct completion update_done;
      struct rb_irq_work irq_work;
  };
  

• In armhf: ✅

  struct ring_buffer_per_cpu {
      int cpu;
      atomic_t record_disabled;
      struct ring_buffer *buffer;
      raw_spinlock_t reader_lock;
      arch_spinlock_t lock;
      struct lock_class_key lock_key;
      struct buffer_data_page *free_page;
      long unsigned int nr_pages;
      unsigned int current_context;
      struct list_head *pages;
      struct buffer_page *head_page;
      struct buffer_page *tail_page;
      struct buffer_page *commit_page;
      struct buffer_page *reader_page;
      long unsigned int lost_events;
      long unsigned int last_overrun;
      long unsigned int nest;
      local_t entries_bytes;
      local_t entries;
      local_t overrun;
      local_t commit_overrun;
      local_t dropped_events;
      local_t committing;
      local_t commits;
      local_t pages_touched;
      local_t pages_read;
      long int last_pages_touch;
      size_t shortest_full;
      long unsigned int read;
      long unsigned int read_bytes;
      u64 write_stamp;
      u64 read_stamp;
      long int nr_pages_to_update;
      struct list_head new_pages;
      struct work_struct update_pages_work;
      struct completion update_done;
      struct rb_irq_work irq_work;
  };
  

• In ppc64el: ✅

  struct ring_buffer_per_cpu {
      int cpu;
      atomic_t record_disabled;
      struct ring_buffer *buffer;
      raw_spinlock_t reader_lock;
      arch_spinlock_t lock;
      struct lock_class_key lock_key;
      struct buffer_data_page *free_page;
      long unsigned int nr_pages;
      unsigned int current_context;
      struct list_head *pages;
      struct buffer_page *head_page;
      struct buffer_page *tail_page;
      struct buffer_page *commit_page;
      struct buffer_page *reader_page;
      long unsigned int lost_events;
      long unsigned int last_overrun;
      long unsigned int nest;
      local_t entries_bytes;
      local_t entries;
      local_t overrun;
      local_t commit_overrun;
      local_t dropped_events;
      local_t committing;
      local_t commits;
      local_t pages_touched;
      local_t pages_read;
      long int last_pages_touch;
      size_t shortest_full;
      long unsigned int read;
      long unsigned int read_bytes;
      u64 write_stamp;
      u64 read_stamp;
      long int nr_pages_to_update;
      struct list_head new_pages;
      struct work_struct update_pages_work;
      struct completion update_done;
      struct rb_irq_work irq_work;
  };
  

• In riscv64: ✅

  struct ring_buffer_per_cpu {
      int cpu;
      atomic_t record_disabled;
      struct ring_buffer *buffer;
      raw_spinlock_t reader_lock;
      arch_spinlock_t lock;
      struct lock_class_key lock_key;
      struct buffer_data_page *free_page;
      long unsigned int nr_pages;
      unsigned int current_context;
      struct list_head *pages;
      struct buffer_page *head_page;
      struct buffer_page *tail_page;
      struct buffer_page *commit_page;
      struct buffer_page *reader_page;
      long unsigned int lost_events;
      long unsigned int last_overrun;
      long unsigned int nest;
      local_t entries_bytes;
      local_t entries;
      local_t overrun;
      local_t commit_overrun;
      local_t dropped_events;
      local_t committing;
      local_t commits;
      local_t pages_touched;
      local_t pages_read;
      long int last_pages_touch;
      size_t shortest_full;
      long unsigned int read;
      long unsigned int read_bytes;
      u64 write_stamp;
      u64 read_stamp;
      long int nr_pages_to_update;
      struct list_head new_pages;
      struct work_struct update_pages_work;
      struct completion update_done;
      struct rb_irq_work irq_work;
  };
  

Flavor

• In aws: ✅

  struct ring_buffer_per_cpu {
      int cpu;
      atomic_t record_disabled;
      struct ring_buffer *buffer;
      raw_spinlock_t reader_lock;
      arch_spinlock_t lock;
      struct lock_class_key lock_key;
      struct buffer_data_page *free_page;
      long unsigned int nr_pages;
      unsigned int current_context;
      struct list_head *pages;
      struct buffer_page *head_page;
      struct buffer_page *tail_page;
      struct buffer_page *commit_page;
      struct buffer_page *reader_page;
      long unsigned int lost_events;
      long unsigned int last_overrun;
      long unsigned int nest;
      local_t entries_bytes;
      local_t entries;
      local_t overrun;
      local_t commit_overrun;
      local_t dropped_events;
      local_t committing;
      local_t commits;
      local_t pages_touched;
      local_t pages_read;
      long int last_pages_touch;
      size_t shortest_full;
      long unsigned int read;
      long unsigned int read_bytes;
      u64 write_stamp;
      u64 read_stamp;
      long int nr_pages_to_update;
      struct list_head new_pages;
      struct work_struct update_pages_work;
      struct completion update_done;
      struct rb_irq_work irq_work;
  };
  

• In azure: ✅

  struct ring_buffer_per_cpu {
      int cpu;
      atomic_t record_disabled;
      struct ring_buffer *buffer;
      raw_spinlock_t reader_lock;
      arch_spinlock_t lock;
      struct lock_class_key lock_key;
      struct buffer_data_page *free_page;
      long unsigned int nr_pages;
      unsigned int current_context;
      struct list_head *pages;
      struct buffer_page *head_page;
      struct buffer_page *tail_page;
      struct buffer_page *commit_page;
      struct buffer_page *reader_page;
      long unsigned int lost_events;
      long unsigned int last_overrun;
      long unsigned int nest;
      local_t entries_bytes;
      local_t entries;
      local_t overrun;
      local_t commit_overrun;
      local_t dropped_events;
      local_t committing;
      local_t commits;
      local_t pages_touched;
      local_t pages_read;
      long int last_pages_touch;
      size_t shortest_full;
      long unsigned int read;
      long unsigned int read_bytes;
      u64 write_stamp;
      u64 read_stamp;
      long int nr_pages_to_update;
      struct list_head new_pages;
      struct work_struct update_pages_work;
      struct completion update_done;
      struct rb_irq_work irq_work;
  };
  

• In gcp: ✅

  struct ring_buffer_per_cpu {
      int cpu;
      atomic_t record_disabled;
      struct ring_buffer *buffer;
      raw_spinlock_t reader_lock;
      arch_spinlock_t lock;
      struct lock_class_key lock_key;
      struct buffer_data_page *free_page;
      long unsigned int nr_pages;
      unsigned int current_context;
      struct list_head *pages;
      struct buffer_page *head_page;
      struct buffer_page *tail_page;
      struct buffer_page *commit_page;
      struct buffer_page *reader_page;
      long unsigned int lost_events;
      long unsigned int last_overrun;
      long unsigned int nest;
      local_t entries_bytes;
      local_t entries;
      local_t overrun;
      local_t commit_overrun;
      local_t dropped_events;
      local_t committing;
      local_t commits;
      local_t pages_touched;
      local_t pages_read;
      long int last_pages_touch;
      size_t shortest_full;
      long unsigned int read;
      long unsigned int read_bytes;
      u64 write_stamp;
      u64 read_stamp;
      long int nr_pages_to_update;
      struct list_head new_pages;
      struct work_struct update_pages_work;
      struct completion update_done;
      struct rb_irq_work irq_work;
  };
  

• In lowlatency: ✅

  struct ring_buffer_per_cpu {
      int cpu;
      atomic_t record_disabled;
      struct ring_buffer *buffer;
      raw_spinlock_t reader_lock;
      arch_spinlock_t lock;
      struct lock_class_key lock_key;
      struct buffer_data_page *free_page;
      long unsigned int nr_pages;
      unsigned int current_context;
      struct list_head *pages;
      struct buffer_page *head_page;
      struct buffer_page *tail_page;
      struct buffer_page *commit_page;
      struct buffer_page *reader_page;
      long unsigned int lost_events;
      long unsigned int last_overrun;
      long unsigned int nest;
      local_t entries_bytes;
      local_t entries;
      local_t overrun;
      local_t commit_overrun;
      local_t dropped_events;
      local_t committing;
      local_t commits;
      local_t pages_touched;
      local_t pages_read;
      long int last_pages_touch;
      size_t shortest_full;
      long unsigned int read;
      long unsigned int read_bytes;
      u64 write_stamp;
      u64 read_stamp;
      long int nr_pages_to_update;
      struct list_head new_pages;
      struct work_struct update_pages_work;
      struct completion update_done;
      struct rb_irq_work irq_work;
  };
  

Differences

Regular

• Changed between 4.4 and 4.8 ⚠️

  • Field type changed. unsigned int nr_pages ➡️ long unsigned int nr_pages
  • Field type changed. int nr_pages_to_update ➡️ long int nr_pages_to_update
• No changes between 4.8 and 4.10 ✅
• Changed between 4.10 and 4.13 ⚠️

  • Field added. struct buffer_data_page *free_page
• No changes between 4.13 and 4.15 ✅
• Changed between 4.15 and 4.18 ⚠️

  • Field added. long unsigned int nest
• Changed between 4.18 and 5.0 ⚠️

  • Field added. local_t pages_touched
  • Field added. local_t pages_read
  • Field added. long int last_pages_touch
  • Field added. size_t shortest_full
• 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. atomic_t resize_disabled
  • Field type changed. struct ring_buffer *buffer ➡️ struct trace_buffer *buffer
• Changed between 5.8 and 5.11 ⚠️

  • Field added. rb_time_t before_stamp
  • Field type changed. u64 write_stamp ➡️ rb_time_t write_stamp
• Changed between 5.11 and 5.13 ⚠️

  • Field added. u64 event_stamp[5]
• No changes between 5.13 and 5.15 ✅
• No changes between 5.15 and 5.19 ✅
• Changed between 5.19 and 6.2 ⚠️

  • Field added. local_t pages_lost
• Changed between 6.2 and 6.5 ⚠️

  • Field added. long unsigned int pages_removed
• 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 ✅