zfcp_fsf_close_lun(9)

👑 zfcp_fsf_close_lun(9) — the Kernel API Manual, bestie edition

okay so real talk, this is a page from the Kernel API Manual, section 9, and it's about zfcp_fsf_close_lun — literally the "close LUN" girlie. she's short, she's sweet, she does one thing. let's get into it 💅

✨ NAME ✨

zfcp_fsf_close_lun — close LUN 🎀

🌸 SYNOPSIS 🌸

int zfcp_fsf_close_lun (struct zfcp_erp_action *erp_action );

that's it. that's the whole vibe check. she takes one argument and she returns an int, no cap ✨

🦋 ARGUMENTS 🦋

• erp_action — pointer to the erp_action that's triggering the "close LUN" 🫶 like, this is the little struct that's the main character of the operation, the one who said "we're closing this LUN, periodt."

💖 RETURN 💖

• 0 on success 🎉
• error otherwise 💀 (iykyk — if it's not 0, something went sideways)

🧚 SEE ALSO 🧚

so like, the kernel file you'd actually wanna peek at is ./drivers/s390/scsi/zfcp_fsf.c — that's the source of truth, bestie. and here's the whole friend group, no gatekeeping:

• zfcp_fsf_req_free(9)
• zfcp_fsf_req_complete(9)
• zfcp_fsf_req_dismiss_all(9)
• zfcp_fsf_scnprint_fc_security(9)
• zfcp_fsf_status_read(9)
• zfcp_fsf_abort_fcp_cmnd(9)
• zfcp_fsf_send_ct(9)
• zfcp_fsf_send_els(9)
• zfcp_fsf_exchange_config_data_sync(9)
• zfcp_fsf_exchange_port_data(9)
• zfcp_fsf_exchange_port_data_sync(9)
• zfcp_fsf_open_port(9)
• zfcp_fsf_close_port(9)
• zfcp_fsf_open_wka_port(9)
• zfcp_fsf_close_wka_port(9)
• zfcp_fsf_close_physical_port(9)
• zfcp_fsf_open_lun(9)
• zfcp_fsf_fcp_handler_common(9)
• zfcp_fsf_fcp_cmnd(9)
• zfcp_fsf_fcp_task_mgmt(9)
• zfcp_fsf_reqid_check(9)

ngl the open_lun one is literally her sibling — open and close, two sides of the same iconic coin 🪙

and that's the page, bestie!! 🍓 this whole thing lives in ./drivers/s390/scsi and it's dated October 2026 — so yeah, slightly time-traveling of her, but we respect it 👑✨ mwah, go close that LUN 💜