blk_rq_map_user_io identifier - Linux source code next-20260811

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FIXME
- FIXME
  - next-20260811

Defined in 1 files as a prototype:

include/linux/blk-mq.h, line 1071 (as a prototype)

Defined in 1 files as a function:

block/blk-map.c, line 569 (as a function)

Referenced in 4 files:

Smatch caller information:

drivers/scsi/sg.c sg_start_req() -> blk_rq_map_user_io()

Type	Parameter	Key	Value
PARAM_VALUE	0	req	4096-ptr_max
PARAM_VALUE	0	req->__data_len	0
PARAM_VALUE	0	req->__sector	u64max
PARAM_VALUE	0	req->bio	0
PARAM_VALUE	0	req->biotail	0
PARAM_VALUE	0	req->end_io_data	4096-ptr_max
PARAM_VALUE	0	req->mq_hctx->type	0-2
PARAM_VALUE	0	req->phys_gap_bit	0
PARAM_VALUE	0	req->q	4096-ptr_max
PARAM_VALUE	0	req->queuelist.next->next	4096-ptr_max
PARAM_VALUE	0	req->queuelist.prev->next	4096-ptr_max
PARAM_VALUE	0	req->queuelist.prev->prev	4096-ptr_max
PARAM_VALUE	1	map_data	0,1526674389281034240
PARAM_VALUE	1	map_data->offset	0
PARAM_VALUE	1	map_data->page_order	0-32
PARAM_VALUE	1	map_data->pages	0,16,4096-ptr_max
PARAM_VALUE	3	buf_len	1-268435455
PARAM_VALUE	4	gfp_mask	3264
PARAM_VALUE	6	iov_count	0-u16max
PARAM_VALUE	7	check_iter_count	1
PARAM_VALUE	8	rw	0-1
BUF_SIZE	0	req->end_io_data	5504
BUF_SIZE	1	map_data	0,24
BUF_SIZE	1	map_data	0,24
BUF_SIZE	1	map_data->pages	s32min-(-1),1-s32max
DATA_SOURCE	0	req	r scsi_alloc_request
FUZZY_MAX	8	rw	1
BIT_INFO	1	map_data	0x0,0x152fd644b4c85000
BIT_INFO	1	map_data	0x0,0x152fd644b4c85000
HARD_MAX	8	rw	1
NO_OVERFLOW_SIMPLE	0	req->elv.icq->q->async_depth
NO_OVERFLOW_SIMPLE	0	req->elv.icq->q->limits.discard_granularity
NO_OVERFLOW_SIMPLE	0	req->elv.icq->q->limits.max_discard_sectors
NO_OVERFLOW_SIMPLE	0	req->elv.icq->q->limits.max_hw_discard_sectors
NO_OVERFLOW_SIMPLE	0	req->elv.icq->q->limits.max_open_zones
NO_OVERFLOW_SIMPLE	0	req->elv.icq->q->limits.zone_write_granularity
NO_OVERFLOW_SIMPLE	0	req->elv.icq->q->nr_hw_queues
NO_OVERFLOW_SIMPLE	0	req->elv.icq->q->nr_requests
NO_OVERFLOW_SIMPLE	0	req->elv.icq->q->q_usage_counter.percpu_count_ptr
NO_OVERFLOW_SIMPLE	0	req->q->async_depth
NO_OVERFLOW_SIMPLE	0	req->q->limits.discard_granularity
NO_OVERFLOW_SIMPLE	0	req->q->limits.max_discard_sectors
NO_OVERFLOW_SIMPLE	0	req->q->limits.max_hw_discard_sectors
NO_OVERFLOW_SIMPLE	0	req->q->limits.max_open_zones
NO_OVERFLOW_SIMPLE	0	req->q->limits.zone_write_granularity
NO_OVERFLOW_SIMPLE	0	req->q->nr_hw_queues
NO_OVERFLOW_SIMPLE	0	req->q->nr_requests
NO_OVERFLOW_SIMPLE	0	req->q->q_usage_counter.percpu_count_ptr
UNITS	2	ubuf	unit_byte
UNITS	3	buf_len	unit_byte

drivers/nvme/host/ioctl.c nvme_map_user_request() -> blk_rq_map_user_io()

Type	Parameter	Key	Value
PARAM_VALUE	0	req	4096-ptr_max
PARAM_VALUE	0	req->__data_len	0
PARAM_VALUE	0	req->__sector	u64max
PARAM_VALUE	0	req->bio	0
PARAM_VALUE	0	req->biotail	0
PARAM_VALUE	0	req->cmd_flags	0,1024-u32max
PARAM_VALUE	0	req->mq_hctx	4096-ptr_max
PARAM_VALUE	0	req->mq_hctx->type	0-2
PARAM_VALUE	0	req->phys_gap_bit	0
PARAM_VALUE	0	req->q	4096-ptr_max
PARAM_VALUE	0	req->queuelist.next->next	4096-ptr_max
PARAM_VALUE	0	req->queuelist.prev->next	4096-ptr_max
PARAM_VALUE	0	req->queuelist.prev->prev	4096-ptr_max
PARAM_VALUE	0	req->rq_flags	0,8-u32max
PARAM_VALUE	0	req->timeout	0-536870912,4294967294
PARAM_VALUE	1	map_data	0
PARAM_VALUE	3	buf_len	1-u32max
PARAM_VALUE	4	gfp_mask	3264
PARAM_VALUE	6	iov_count	0
PARAM_VALUE	7	check_iter_count	0
PARAM_VALUE	8	rw	0-1
DATA_SOURCE	0	req	$0
DATA_SOURCE	3	buf_len	$2
FUZZY_MAX	8	rw	1
HARD_MAX	8	rw	1
RX_PATH
TASK_NOT_RUNNING
USER_DATA	3	buf_len	1-u32max
NO_OVERFLOW_SIMPLE	0	req->elv.icq->q->async_depth
NO_OVERFLOW_SIMPLE	0	req->elv.icq->q->limits.discard_granularity
NO_OVERFLOW_SIMPLE	0	req->elv.icq->q->limits.max_discard_sectors
NO_OVERFLOW_SIMPLE	0	req->elv.icq->q->limits.max_hw_discard_sectors
NO_OVERFLOW_SIMPLE	0	req->elv.icq->q->limits.max_open_zones
NO_OVERFLOW_SIMPLE	0	req->elv.icq->q->limits.zone_write_granularity
NO_OVERFLOW_SIMPLE	0	req->elv.icq->q->nr_hw_queues
NO_OVERFLOW_SIMPLE	0	req->elv.icq->q->nr_requests
NO_OVERFLOW_SIMPLE	0	req->elv.icq->q->q_usage_counter.percpu_count_ptr
NO_OVERFLOW_SIMPLE	0	req->q->async_depth
NO_OVERFLOW_SIMPLE	0	req->q->limits.discard_granularity
NO_OVERFLOW_SIMPLE	0	req->q->limits.max_discard_sectors
NO_OVERFLOW_SIMPLE	0	req->q->limits.max_hw_discard_sectors
NO_OVERFLOW_SIMPLE	0	req->q->limits.max_open_zones
NO_OVERFLOW_SIMPLE	0	req->q->limits.zone_write_granularity
NO_OVERFLOW_SIMPLE	0	req->q->nr_hw_queues
NO_OVERFLOW_SIMPLE	0	req->q->nr_requests
NO_OVERFLOW_SIMPLE	0	req->q->q_usage_counter.percpu_count_ptr

drivers/scsi/scsi_ioctl.c sg_io() -> blk_rq_map_user_io()

Type	Parameter	Key	Value
PARAM_VALUE	0	req	4096-ptr_max
PARAM_VALUE	0	req->__data_len	0
PARAM_VALUE	0	req->__sector	u64max
PARAM_VALUE	0	req->bio	0
PARAM_VALUE	0	req->biotail	0
PARAM_VALUE	0	req->mq_hctx->type	0-2
PARAM_VALUE	0	req->phys_gap_bit	0
PARAM_VALUE	0	req->q	4096-ptr_max
PARAM_VALUE	0	req->queuelist.next->next	4096-ptr_max
PARAM_VALUE	0	req->queuelist.prev->next	4096-ptr_max
PARAM_VALUE	0	req->queuelist.prev->prev	4096-ptr_max
PARAM_VALUE	0	req->timeout	1750-u32max
PARAM_VALUE	1	map_data	0
PARAM_VALUE	3	buf_len	0-4294966784
PARAM_VALUE	4	gfp_mask	3264
PARAM_VALUE	7	check_iter_count	0
PARAM_VALUE	8	rw	0-1
CAPPED_DATA	3	buf_len	1
DATA_SOURCE	0	req	r scsi_alloc_request
FUZZY_MAX	8	rw	1
HARD_MAX	8	rw	1
USER_DATA	3	buf_len	0-s32max[c]
USER_DATA	5	vec	0-1
USER_DATA	6	iov_count	0-u16max
NO_OVERFLOW_SIMPLE	0	req->elv.icq->q->async_depth
NO_OVERFLOW_SIMPLE	0	req->elv.icq->q->limits.discard_granularity
NO_OVERFLOW_SIMPLE	0	req->elv.icq->q->limits.max_discard_sectors
NO_OVERFLOW_SIMPLE	0	req->elv.icq->q->limits.max_hw_discard_sectors
NO_OVERFLOW_SIMPLE	0	req->elv.icq->q->limits.max_open_zones
NO_OVERFLOW_SIMPLE	0	req->elv.icq->q->limits.zone_write_granularity
NO_OVERFLOW_SIMPLE	0	req->elv.icq->q->nr_hw_queues
NO_OVERFLOW_SIMPLE	0	req->elv.icq->q->nr_requests
NO_OVERFLOW_SIMPLE	0	req->elv.icq->q->q_usage_counter.percpu_count_ptr
NO_OVERFLOW_SIMPLE	0	req->q->async_depth
NO_OVERFLOW_SIMPLE	0	req->q->limits.discard_granularity
NO_OVERFLOW_SIMPLE	0	req->q->limits.max_discard_sectors
NO_OVERFLOW_SIMPLE	0	req->q->limits.max_hw_discard_sectors
NO_OVERFLOW_SIMPLE	0	req->q->limits.max_open_zones
NO_OVERFLOW_SIMPLE	0	req->q->limits.zone_write_granularity
NO_OVERFLOW_SIMPLE	0	req->q->nr_hw_queues
NO_OVERFLOW_SIMPLE	0	req->q->nr_requests
NO_OVERFLOW_SIMPLE	0	req->q->q_usage_counter.percpu_count_ptr
UNITS	2	ubuf	unit_byte
HALF_LOCKED2		&cd->lock