137 struct request {  struct
138 	struct request_queue *q;  argument
159 	 * request reaches the dispatch list. The ipi_list is only used  argument
170 	 * The rb_node is only used inside the io scheduler, requests  argument
183 	 * more they have to dynamically allocate it.  Flush requests are  argument
203 	/* Time that the first bio started allocating this request. */  argument
206 	/* Time that this request was allocated for this IO. */  argument
207 	u64 start_time_ns;
209 	u64 io_start_time_ns;
212 	unsigned short wbt_flags;
219 	unsigned short stats_sectors;
225 	unsigned short nr_phys_segments;
228 	unsigned short nr_integrity_segments;
232 	struct bio_crypt_ctx *crypt_ctx;
233 	struct blk_ksm_keyslot *crypt_keyslot;
236 	unsigned short write_hint;
237 	unsigned short ioprio;
239 	enum mq_rq_state state;
240 	refcount_t ref;
242 	unsigned int timeout;
243 	unsigned long deadline;
245 	union {
269 static inline bool blk_rq_is_scsi(struct request *rq)  in blk_rq_is_scsi()  argument