sd_zbc_setup_zone_mgmt_cmnd(9)

💖 sd_zbc_setup_zone_mgmt_cmnd 💖

Okay bestie, so this is a page from the Kernel API Manual — yes, that kernel API manual — and it's all about one lil function with a very long name: sd_zbc_setup_zone_mgmt_cmnd. Literally say it five times fast, I dare you. 🫶

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✨ NAME ✨

sd_zbc_setup_zone_mgmt_cmnd — prepare a zone ZBC_OUT command. The operations can be RESET WRITE POINTER, OPEN, CLOSE or FINISH. That's it, that's the whole vibe check. 🎀

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🌸 SYNOPSIS 🌸

blk_status_t sd_zbc_setup_zone_mgmt_cmnd (struct scsi_cmnd *cmd ,
unsigned char op , bool all );

Look at that signature, she's iconic ngl. ✨

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🦋 ARGUMENTS 🦋

• cmd — the command to setup. It's the main character here, everything else is supporting cast. 💅
• op — operation to be performed. Yes, the actual thing we're doing. Slay.
• all — all zones control. Like, every zone. The whole group chat, not just one. 👑

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💜 DESCRIPTION 💜

So this gets called from sd_init_command for REQ_OP_ZONE_RESET, REQ_OP_ZONE_RESET_ALL, REQ_OP_ZONE_OPEN, REQ_OP_ZONE_CLOSE or REQ_OP_ZONE_FINISH requests. That's the five callers, no cap, and I listed all five because we don't skip details in this house. 🔥

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👑 SEE ALSO 👑

Kernel file ./drivers/scsi/sd_zbc.c, and also the whole friend group:

• sd_zbc_parse_report(9)
• sd_zbc_do_report_zones(9)
• sd_zbc_alloc_report_buffer(9)
• sd_zbc_zone_sectors(9)
• sd_zbc_report_zones(9)
• sd_zbc_complete(9)
• sd_zbc_check_zoned_characteristics(9)
• sd_zbc_check_capacity(9)
• sd_zbc_read_zones(9)

And the directory ./drivers/scsi because that's where all the cool kids live. 🌈

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That's the whole page, bestie! 💖 This one's from the kernel .9 docs, living in the ./drivers/scsi section, and it was dated October 2026 — so yeah, from the future, obviously, main character energy fr fr. 🦋💫 Go forth and set up those zone management commands. Periodt. 🎀