sd_zbc_report_zones(9)

✨ sd_zbc_report_zones ✨

okay so bestie, this is the sd_zbc_report_zones(9) page — it lives in the Kernel API Manual and it's literally the SCSI .report_zones() callback. yes, that one. come sit with me 🎀

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🌸 SYNOPSIS 🌸

int sd_zbc_report_zones(struct gendisk *disk, sector_t sector,
                        unsigned int nr_zones,
                        struct blk_report_zones_args *args);

she takes four things and returns an int, periodt 💅

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🦋 ARGUMENTS 🦋

• disk — the Disk you're reporting zones for, bestie. that's the one.
• sector — the Start sector. where we're kicking things off ✨
• nr_zones — Maximum number of zones to report. yes, maximum — she's not gonna overdo it 🙈
• args — Callback arguments. just hand 'em over 🫶

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💖 DESCRIPTION 💖

so the block layer calls this one to iterate over zone information. that's the whole vibe. it's the go-between, the main character who shows up when the block layer needs to walk through zones 🧚

also, lowkey important: peep the disk->fops->report_zones calls in block/blk-zoned.c — that's where you'll see her in action, iykyk 👑

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👑 SEE ALSO 👑

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

and the whole friend group, fr fr:

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

literally the whole ./drivers/scsi crew showing up to the group chat 🌈

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that's the page!! 💜 it's from ./drivers/scsi, dated October 2026, and it's sd_zbc_report_zones(9) — mwah, slay, go read some zones 🍓✨