scsi_check_passthrough(9)

💅 scsi_check_passthrough(9) — Kernel API Manual 💅

🌸 NAME 🌸

okay so bestie, this one is scsi_check_passthrough, and its whole job is to determine if a passthrough scsi_cmnd needs a retry. periodt.

✨ SYNOPSIS ✨

the signature, copied exactly because we do not mess with kernel code:

int scsi_check_passthrough (struct scsi_cmnd *scmd , struct
       scsi_failures *failures );

🎀 ARGUMENTS 🎀

• scmd — the scsi_cmnd to check. that's the main character right there.
• failures — the scsi_failures struct that lists failures to check for. it's giving checklist energy.

🦋 DESCRIPTION 🦋

Returns -EAGAIN if the caller should retry, else 0. that's literally the whole plot: retry (-EAGAIN) or no retry (0), no cap.

🔥 SEE ALSO 🔥

the kernel file is ./drivers/scsi/scsi_lib.c, and here are all the related pages — every single one, bestie:

• __scsi_queue_insert(9)
• scsi_queue_insert(9)
• scsi_failures_reset_retries(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_block_targets(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)

xoxo, your kernel bestie 💖 — source/version: ./drivers/scsi; date: October 2026; this page: scsi_check_passthrough(9).