scsi_block_targets(9)

✨ NAME ✨

scsi_block_targets — transition all SCSI child devices to SDEV_BLOCK state. Yes bestie, this is scsi_block_targets(9) from the Kernel API Manual, and it’s here to put every SCSI child device into SDEV_BLOCK state. It’s giving group chat gets put on do-not-disturb 💅.

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🦋 SYNOPSIS 🦋

The exact signature, no cap:

void scsi_block_targets (struct Scsi_Host *shost , struct device *dev );

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🌸 ARGUMENTS 🌸

• shost — the Scsi_Host to which this device belongs.
• dev — a parent device of one or more scsi_target devices.

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💖 DESCRIPTION 💖

Okay so it iterates over all children of dev, and those children should be scsi_target devices. For every one of them, it switches all subordinate scsi devices to SDEV_BLOCK state. Then it waits for ongoing scsi_queue_rq calls to finish. That’s the whole plot, bestie.

May sleep. Yep, it may sleep. Not a drill, just the actual documented vibe 😭.

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🚨 NOTE 🚨

dev must not itself be a scsi_target device. That’s the rule. Do not hand it a scsi_target and expect main character energy — it’s literally in the note, bestie 🙈.

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🔥 SEE ALSO 🔥

Kernel file: ./drivers/scsi/scsi_lib.c

The whole friend group, every single one:

• __scsi_queue_insert(9)
• scsi_queue_insert(9)
• scsi_failures_reset_retries(9)
• scsi_check_passthrough(9)
• scsi_execute_cmd(9)
• scsi_run_queue(9)
• scsi_result_to_blk_status(9)
• scsi_rq_err_bytes(9)
• scsi_io_completion(9)
• scsi_alloc_sgtables(9)
• scsi_initialize_rq(9)
• scsi_alloc_request(9)
• scsi_dispatch_cmd(9)
• scsi_get_internal_cmd(9)
• scsi_put_internal_cmd(9)
• scsi_device_from_queue(9)
• scsi_block_requests(9)
• scsi_unblock_requests(9)
• scsi_mode_select(9)
• scsi_mode_sense(9)
• scsi_test_unit_ready(9)
• scsi_device_set_state(9)
• scsi_evt_emit(9)
• scsi_evt_thread(9)
• sdev_evt_send(9)
• sdev_evt_alloc(9)
• sdev_evt_send_simple(9)
• scsi_device_quiesce(9)
• scsi_device_resume(9)
• scsi_internal_device_block_nowait(9)
• scsi_device_block(9)
• scsi_internal_device_unblock_nowait(9)
• scsi_internal_device_unblock(9)
• scsi_host_block(9)
• scsi_kmap_atomic_sg(9)
• scsi_kunmap_atomic_sg(9)
• scsi_vpd_lun_id(9)
• scsi_vpd_lun_serial(9)
• scsi_vpd_tpg_id(9)
• scsi_build_sense(9)

Bye bestie! From ./drivers/scsi, dated October 2026, on the scsi_block_targets(9) page — stay blocked and slay 💅✨