blk_mq_alloc_request identifier - Linux source code next-20260811

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linux

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FIXME
- FIXME
  - next-20260811

Defined in 1 files as a prototype:

include/linux/blk-mq.h, line 765 (as a prototype)

Defined in 1 files as a function:

block/blk-mq.c, line 661 (as a function)

Referenced in 13 files:

Smatch caller information:

drivers/ufs/core/ufshcd.c __ufshcd_issue_tm_cmd() -> blk_mq_alloc_request()

Type	Parameter	Key	Value
PARAM_VALUE	1	opf	35
PARAM_VALUE	2	flags	0
RX_PATH
TASK_NOT_RUNNING

drivers/mmc/core/block.c mmc_blk_ioctl_cmd() -> blk_mq_alloc_request()

Type	Parameter	Key	Value
PARAM_VALUE	1	opf	34-35
PARAM_VALUE	2	flags	0
FUZZY_MAX	1	opf	35
BIT_INFO	1	opf	0x22,0x23
HARD_MAX	1	opf	35

drivers/mmc/core/block.c mmc_blk_ioctl_multi_cmd() -> blk_mq_alloc_request()

Type	Parameter	Key	Value
PARAM_VALUE	1	opf	34-35
PARAM_VALUE	2	flags	0
FUZZY_MAX	1	opf	35
BIT_INFO	1	opf	0x22,0x23
HARD_MAX	1	opf	35

drivers/mmc/core/block.c mmc_dbg_card_status_get() -> blk_mq_alloc_request()

Type	Parameter	Key	Value
PARAM_VALUE	1	opf	34
PARAM_VALUE	2	flags	0
LOCK2		&attr->mutex
TYPE_LOCK		(struct simple_attr)->mutex

drivers/mmc/core/block.c mmc_ext_csd_open() -> blk_mq_alloc_request()

Type	Parameter	Key	Value
PARAM_VALUE	1	opf	34
PARAM_VALUE	2	flags	0
RX_PATH
TASK_NOT_RUNNING

drivers/mmc/core/block.c mmc_route_rpmb_frames() -> blk_mq_alloc_request()

Type	Parameter	Key	Value
PARAM_VALUE	1	opf	35
PARAM_VALUE	2	flags	0

drivers/mmc/core/block.c power_ro_lock_store() -> blk_mq_alloc_request()

Type	Parameter	Key	Value
PARAM_VALUE	1	opf	35
PARAM_VALUE	2	flags	0
RX_PATH
TASK_NOT_RUNNING
LOCK2		&of->mutex
HALF_LOCKED2		&of->prealloc_mutex
HALF_LOCKED2		&pool->lock
TYPE_LOCK		(struct kernfs_open_file)->mutex

drivers/scsi/scsi_lib.c scsi_alloc_request() -> blk_mq_alloc_request()

Type	Parameter	Key	Value
PARAM_VALUE	0	q->debugfs_dir->d_inode->i_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	q->dev->power.wakeirq->status	0-4294967295
PARAM_VALUE	1	opf	34-35,1826-1827
DATA_SOURCE	0	q	$0
DATA_SOURCE	1	opf	$1
DATA_SOURCE	2	flags	$2
FUZZY_MAX	1	opf	35
BIT_INFO	1	opf	0x0,0x73f
RX_PATH
TASK_NOT_RUNNING
USER_DATA	0	q->limits.alignment_offset	0-u32max[c][u]
USER_DATA	0	q->limits.atomic_write_max_sectors	0-8388607[c]
USER_DATA	0	q->limits.discard_granularity	512-u32max[c]
USER_DATA	0	q->limits.io_min	512-u32max[c]
USER_DATA	0	q->limits.logical_block_size	512-65536[c]
USER_DATA	0	q->limits.max_hw_wzeroes_unmap_sectors	0-u32max[c]
USER_DATA	0	q->limits.max_sectors	0-s32max[c]
USER_DATA	0	q->limits.max_write_zeroes_sectors	0-u32max[c]
USER_DATA	0	q->limits.max_wzeroes_unmap_sectors	0-s32max[c]
USER_DATA	0	q->limits.max_zone_append_sectors	0-s32max[c]
USER_DATA	0	q->limits.physical_block_size	512-u32max[c]
USER_DATA	0	q->queue_depth	1-4095[c]
NO_OVERFLOW_SIMPLE	0	q->async_depth
NO_OVERFLOW_SIMPLE	0	q->limits.max_discard_sectors
NO_OVERFLOW_SIMPLE	0	q->limits.max_open_zones
NO_OVERFLOW_SIMPLE	0	q->nr_hw_queues
NO_OVERFLOW_SIMPLE	0	q->nr_requests
HALF_LOCKED2		&cd->lock
HALF_LOCKED2	0	&q->limits_lock

drivers/nvme/host/core.c __nvme_submit_sync_cmd() -> blk_mq_alloc_request()

Type	Parameter	Key	Value
PARAM_VALUE	0	q->dev->power.wakeirq->status	0-4294967295
PARAM_VALUE	1	opf	34-35
PARAM_VALUE	2	flags	0-3
DATA_SOURCE	0	q	$0
FUZZY_MAX	2	flags	0
RX_PATH
TASK_NOT_RUNNING
HOST_DATA	0	q->async_depth	1-10238[c]
HOST_DATA	0	q->disk->bdi->io_pages	0-268435455[c]
HOST_DATA	0	q->disk->bdi->ra_pages	33-536870911[c]
HOST_DATA	0	q->limits.alignment_offset	0-u16max[c]
HOST_DATA	0	q->limits.atomic_write_max_sectors	0-8388607[c]
HOST_DATA	0	q->limits.discard_granularity	512-u32max[c]
HOST_DATA	0	q->limits.integrity.interval_exp	0-31[c]
HOST_DATA	0	q->limits.io_min	512-65536[c]
HOST_DATA	0	q->limits.max_active_zones	0-u32max
HOST_DATA	0	q->limits.max_integrity_segments	0-u16max
HOST_DATA	0	q->limits.max_open_zones	0-u32max
HOST_DATA	0	q->limits.max_sectors	0-s32max[c]
HOST_DATA	0	q->limits.max_segments	1-u16max[c]
HOST_DATA	0	q->limits.max_zone_append_sectors	0-s32max[c]
HOST_DATA	0	q->limits.zone_write_granularity	512-65536[c]
HOST_DATA	0	q->mq_kobj->kref.refcount.refs.counter	s32min-s32max
HOST_DATA	0	q->nr_requests	1-10238[c]
HOST_DATA	0	q->tag_set->queue_depth	1-10238[c]
HOST_DATA	0	q->tag_set->reserved_tags	0-u32max
HOST_DATA	0	q->tag_set->tags_srcu.srcu_sup->srcu_ssp->srcu_reader_flavor	0-255
NO_OVERFLOW_SIMPLE	0	q->async_depth
NO_OVERFLOW_SIMPLE	0	q->limits.discard_granularity
NO_OVERFLOW_SIMPLE	0	q->limits.max_discard_sectors
NO_OVERFLOW_SIMPLE	0	q->limits.max_hw_discard_sectors
NO_OVERFLOW_SIMPLE	0	q->limits.max_open_zones
NO_OVERFLOW_SIMPLE	0	q->nr_hw_queues
NO_OVERFLOW_SIMPLE	0	q->nr_requests
NO_OVERFLOW_SIMPLE	0	q->tag_set->nr_hw_queues
NO_OVERFLOW_SIMPLE	0	q->tag_set->queue_depth
HALF_LOCKED2		&dev->dev_lock

drivers/nvme/host/core.c nvme_keep_alive_work() -> blk_mq_alloc_request()

Type	Parameter	Key	Value
PARAM_VALUE	1	opf	34-35
PARAM_VALUE	2	flags	3
HALF_LOCKED2		&pool->lock

drivers/nvme/host/ioctl.c nvme_alloc_user_request() -> blk_mq_alloc_request()

Type	Parameter	Key	Value
PARAM_VALUE	0	q	4096-ptr_max
PARAM_VALUE	0	q->queuedata	0,4096-ptr_max
PARAM_VALUE	1	opf	0-67108863
PARAM_VALUE	2	flags	0-1
DATA_SOURCE	0	q	$0
DATA_SOURCE	2	flags	$3
FUZZY_MAX	2	flags	1
BIT_INFO	1	opf	0x0,0x260003f
HARD_MAX	2	flags	1
RX_PATH
TASK_NOT_RUNNING

drivers/md/dm-mpath.c multipath_clone_and_map() -> blk_mq_alloc_request()

Type	Parameter	Key	Value
PARAM_VALUE	1	opf	0,16384-u32max
PARAM_VALUE	2	flags	1
BIT_INFO	1	opf	0x4000,0xffffffff
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		__tag_set->srcu
HALF_LOCKED2		rcu_read

drivers/nvme/host/pci.c nvme_delete_queue() -> blk_mq_alloc_request()

Type	Parameter	Key	Value
PARAM_VALUE	1	opf	34
PARAM_VALUE	2	flags	1
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&dev->shutdown_lock
HALF_LOCKED2		&pool->lock

drivers/nvme/host/pci.c nvme_timeout() -> blk_mq_alloc_request()

Type	Parameter	Key	Value
PARAM_VALUE	1	opf	34
PARAM_VALUE	2	flags	1
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&khd->lock

drivers/block/ublk_drv.c ublk_report_zones() -> blk_mq_alloc_request()

Type	Parameter	Key	Value
PARAM_VALUE	0	q	4096-ptr_max
PARAM_VALUE	0	q->dev->power.wakeirq->status	0-4294967295
PARAM_VALUE	1	opf	34
PARAM_VALUE	2	flags	0
RX_PATH
TASK_NOT_RUNNING
HOST_DATA	0	q->async_depth	0-10238[c]
HOST_DATA	0	q->limits.alignment_offset	0-u16max[c]
HOST_DATA	0	q->limits.atomic_write_max_sectors	0-8388607[c]
HOST_DATA	0	q->limits.discard_granularity	512-u32max[c]
HOST_DATA	0	q->limits.integrity.interval_exp	0-31[c]
HOST_DATA	0	q->limits.io_min	512-65536[c]
HOST_DATA	0	q->limits.max_active_zones	0-u32max
HOST_DATA	0	q->limits.max_open_zones	0-u32max
HOST_DATA	0	q->limits.max_sectors	0-s32max[c]
HOST_DATA	0	q->limits.max_zone_append_sectors	0-s32max[c]
HOST_DATA	0	q->limits.zone_write_granularity	512-65536[c]
HOST_DATA	0	q->nr_requests	0-10238[c]
NO_OVERFLOW_SIMPLE	0	q->async_depth
NO_OVERFLOW_SIMPLE	0	q->limits.max_discard_sectors
NO_OVERFLOW_SIMPLE	0	q->limits.max_open_zones
NO_OVERFLOW_SIMPLE	0	q->nr_hw_queues
NO_OVERFLOW_SIMPLE	0	q->nr_requests
HALF_LOCKED2		&pool->lock

drivers/block/virtio_blk.c virtblk_get_id() -> blk_mq_alloc_request()

Type	Parameter	Key	Value
PARAM_VALUE	1	opf	34
PARAM_VALUE	2	flags	0
RX_PATH
TASK_NOT_RUNNING
LOCK2		&of->mutex
HALF_LOCKED2		&of->prealloc_mutex
HALF_LOCKED2		&pool->lock
TYPE_LOCK		(struct kernfs_open_file)->mutex

drivers/block/virtio_blk.c virtblk_submit_zone_report() -> blk_mq_alloc_request()

Type	Parameter	Key	Value
PARAM_VALUE	0	q	4096-ptr_max
PARAM_VALUE	1	opf	34
PARAM_VALUE	2	flags	0
CAPPED_DATA	0	q->limits.max_hw_sectors	1
CAPPED_DATA	0	q->limits.max_segments	1
RX_PATH
TASK_NOT_RUNNING
LOCK2		&vblk->vdev_mutex
HALF_LOCKED2		&pool->lock
TYPE_LOCK		(struct virtio_blk)->vdev_mutex

drivers/block/mtip32xx/mtip32xx.c mtip_exec_internal_command() -> blk_mq_alloc_request()

Type	Parameter	Key	Value
PARAM_VALUE	1	opf	34
PARAM_VALUE	2	flags	2
RX_PATH
TASK_NOT_RUNNING

block/bsg-lib.c bsg_transport_sg_io_fn() -> blk_mq_alloc_request()

Type	Parameter	Key	Value
PARAM_VALUE	1	opf	34-35
PARAM_VALUE	2	flags	0
DATA_SOURCE	0	q	$0
FUZZY_MAX	1	opf	35
CAPABLE	0	17
BIT_INFO	1	opf	0x22,0x23
HARD_MAX	1	opf	35

block/bsg-lib.c bsg_transport_sg_io_fn() -> blk_mq_alloc_request()

Type	Parameter	Key	Value
PARAM_VALUE	0	q	4096-ptr_max
PARAM_VALUE	0	q->elevator->type->ops.init_icq	0
PARAM_VALUE	1	opf	34
PARAM_VALUE	2	flags	0
CAPABLE	0	17
NO_OVERFLOW_SIMPLE	0	q->async_depth
NO_OVERFLOW_SIMPLE	0	q->limits.discard_granularity
NO_OVERFLOW_SIMPLE	0	q->limits.max_discard_sectors
NO_OVERFLOW_SIMPLE	0	q->limits.max_hw_discard_sectors
NO_OVERFLOW_SIMPLE	0	q->limits.max_open_zones
NO_OVERFLOW_SIMPLE	0	q->limits.zone_write_granularity
NO_OVERFLOW_SIMPLE	0	q->nr_hw_queues
NO_OVERFLOW_SIMPLE	0	q->nr_requests
NO_OVERFLOW_SIMPLE	0	q->q_usage_counter.percpu_count_ptr

drivers/nvme/target/passthru.c nvmet_passthru_execute_cmd() -> blk_mq_alloc_request()

Type	Parameter	Key	Value
PARAM_VALUE	1	opf	34-35
PARAM_VALUE	2	flags	0
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&pool->lock