@@ 1번째 줄: / 1번째 줄: @@
 <uml>
 class bio1 << (S,#FF7700) >> {
-*bi_next : struct bio
+bi_next : struct bio *
-*bi_bdev : struct block_device
+bi_bdev : struct block_device *
-bi_flags : unsigned long
 bi_rw : unsigned long
 bi_iter : struct bvec_iter
-bi_phys_segments : unsigned int
-bi_seg_front_size : unsigned int
-bi_seg_back_size : unsigned int
-bi_remaining : atomic_t
-*bi_end_io : bio_end_io_t
-*bi_private : void
-bi_vcnt : unsigned short
-bi_max_vecs : unsigned short
-bi_cnt : atomic_t
-*bi_io_vec : struct bio_vec
-*bi_pool : struct bio_set
 bi_inline_vecs[0] : struct bio_vec
+...
 }
 bio1 -right-> bio2 : bi_next
+bio1 --> bio_vec1 : bi_inline_vecs[0] (Index : bi_iter->bi_idx)
+bio1 --> bio_vec2 : bi_inline_vecs[1] (Index : bi_iter->bi_idx)
-class bio2 << (S,#FF7700) >> {
+class "bio" as bio2 << (S,#FF7700) >> {
-*bi_next : struct bio
+bi_next : struct bio *
-*bi_bdev : struct block_device
+bi_bdev : struct block_device *
-bi_flags : unsigned long
 bi_rw : unsigned long
 bi_iter : struct bvec_iter
-bi_phys_segments : unsigned int
-bi_seg_front_size : unsigned int
-bi_seg_back_size : unsigned int
-bi_remaining : atomic_t
-*bi_end_io : bio_end_io_t
-*bi_private : void
-bi_vcnt : unsigned short
-bi_max_vecs : unsigned short
-bi_cnt : atomic_t
-*bi_io_vec : struct bio_vec
-*bi_pool : struct bio_set
 bi_inline_vecs[0] : struct bio_vec
+...
 }
 bio2 --> bio2 : bi_next
+bio2 --> bio_vec3 : bi_inline_vecs[0] (Index : bi_iter->bi_idx)
-class bio_vec1 << (S,#FF7700) >> {
+class "bio_vec" as bio_vec1 << (S,#FF7700) >> {
-*bv_page : struct page
+bv_page : struct page *
 bv_len : unsigned int
 bv_offset : unsigned int
 }
-bio1 --> bio_vec1 : bi_inline_vecs[0]
-bio1 --> bio_vec2 : bi_inline_vecs[1]
-class bio_vec2 << (S,#FF7700) >> {
+class "bio_vec" as bio_vec2 << (S,#FF7700) >> {
-*bv_page : struct page
+bv_page : struct page *
 bv_len : unsigned int
 bv_offset : unsigned int
@@ 59번째 줄: / 38번째 줄: @@
-class bio_vec3 << (S,#FF7700) >> {
+class "bio_vec" as bio_vec3 << (S,#FF7700) >> {
-*bv_page : struct page
+bv_page : struct page *
 bv_len : unsigned int
 bv_offset : unsigned int
 }
-bio2 --> bio_vec3 : bi_inline_vecs[0]
 class request_queue << (S,#FF7700) >> {
-queue_head : struct list_head
+elevator : struct elevator_queue *
-*last_merge : struct request
-*elevator : struct elevator_queue
-nr_rqs[2] : int
-nr_rqs_elvpriv : int
 root_rl : struct request_list
-*request_fn : request_fn_proc
+request_fn : request_fn_proc *
-*prep_rq_fn : prep_rq_fn
+prep_rq_fn : prep_rq_fn *
-*unprep_rq_fn : unprep_rq_fn
-*merge_bvec_fn : merge_bvec_fn
-*softirq_done_fn : softirq_done_fn
-*rq_timed_out_fn : rq_timed_out_fn
-*dma_drain_needed : dma_drain_needed_fn
-*lld_busy_fn : lld_busy_fn
-*mq_ops : struct blk_mq_ops
-*mq_map : unsigned int
-*queue_ctx : struct blk_mq_ctx
-nr_hw_queues : unsigned int
-end_sector : sector_t
-*boundary_rq : struct request
 delay_work : struct delayed_work
-backing_dev_info : struct backing_dev_info
+...
-queuedata : void
-queue_flags : unsigned long
-id : int
-bounce_gfp : gfp_t
-__queue_lock : spinlock_t
-*queue_lock : spinlock_t
-kobj : struct kobject
-mq_kobj : struct kobject
-nr_requests : unsigned long
-nr_congestion_on : unsigned int
-nr_congestion_off : unsigned int
-nr_batching : unsigned int
-dma_drain_size : unsigned int
-*dma_drain_buffer : void
-dma_pad_mask : unsigned int
-dma_alignment : unsigned int
-*queue_tags : struct blk_queue_tag
-tag_busy_list : struct list_head
-nr_sorted : unsigned int
-in_flight[2] : unsigned int
-request_fn_active : unsigned int
-rq_timeout : unsigned int
-timeout : struct timer_list
-timeout_list : struct list_head
-icq_list : struct list_head
-limits : struct queue_limits
-sg_timeout : unsigned int
-sg_reserved_size : unsigned int
-node : int
-flush_flags : unsigned int
-flush_not_queueable:1 : unsigned int
-flush_queue_delayed:1 : unsigned int
-flush_pending_idx:1 : unsigned int
-flush_running_idx:1 : unsigned int
-flush_pending_since : unsigned long
-flush_queue[2] : struct list_head
-flush_data_in_flight : struct list_head
-*flush_rq : struct request
-mq_flush_lock : spinlock_t
-sysfs_lock : struct mutex
-bypass_depth : int
-rcu_head : struct rcu_head
-mq_freeze_wq : wait_queue_head_t
-mq_usage_counter : struct percpu_counter
-all_q_node : struct list_head
 }
 request_queue -right-> request : root_rl
@@ 146번째 줄: / 58번째 줄: @@
-class request << (S,#FF7700)/linux/blkdev.h >> {
+class request << (S,#FF7700) >> {
-queuelist : struct list_head
+q : struct request_queue *
-union {
+bio : struct bio *
-      csd : struct call_single_data
+biotail : struct bio *
-      mq_flush_work : struct work_struct
+...
-};
-*q : struct request_queue
-*mq_ctx : struct blk_mq_ctx
-cmd_flags : u64
-cmd_type : enum rq_cmd_type_bits
-atomic_flags : unsigned long
-cpu : int
-__data_len : unsigned int
-__sector : sector_t
-*bio : struct bio
-*biotail : struct bio
-hash : struct hlist_node
-union {
-rb_node : struct rb_node
-*completion_data : void
-};
-union {
-struct {
-*icq : struct io_cq
-*priv[2] : void
-} elv;
-struct {
-seq : unsigned int
-list : struct list_head
-*saved_end_io : rq_end_io_fn
-} flush;
-};
-*rq_disk : struct gendisk
-*part : struct hd_struct
-start_time : unsigned long
-ioprio : unsigned short
-*special : void
-*buffer : char
-tag : int
-errors : int
-__cmd[BLK_MAX_CDB] : unsigned char
-*cmd : unsigned char
-cmd_len : unsigned short
-extra_len : unsigned int
-sense_len : unsigned int
-resid_len : unsigned int
-*sense : void
-deadline : unsigned long
-timeout_list : struct list_head
-timeout : unsigned int
-retries : int
-*end_io : rq_end_io_fn
-*end_io_data : void
-*next_rq : struct request
 }
 request -left-> request_queue : *q
 request --> bio1 : *bio
 request --> bio2 : *bio_tail
+class page << (S,#FF7700) >> {
+private : unsigned long
+}
+bio_vec1 --> page : bv_page
 </uml>
+a

Bio reqeust requestqueue

2014년 5월 15일 (목) 14:19 현재 판

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