sd_zbc_alloc_report_buffer(9)

💖 sd_zbc_alloc_report_buffer(9) 💖

okay so this is the Kernel API Manual page for sd_zbc_alloc_report_buffer(9), and we’re about to make buffer allocation make sense, bestie. 🫶

🌸 NAME 🌸

sd_zbc_alloc_report_buffer — allocate a buffer for report zones reply. Periodt. 💅

✨ SYNOPSIS ✨

void * sd_zbc_alloc_report_buffer (struct scsi_disk *sdkp , unsigned int
nr_zones , size_t *buflen );

🎀 ARGUMENTS 🎀

• sdkp — the target disk 💽
• nr_zones — maximum number of zones to report 🔥
• buflen — size of the buffer allocated 🎀

🦋 DESCRIPTION 🦋

okay so the mission is simple: try to allocate a reply buffer for the number of requested zones. 💫

The size of the buffer allocated may be smaller than requested, because it has to satify (that’s the source’s spelling, not mine 😭) the device constraint (max_hw_sectors, max_segments, etc). It’s giving “the device said ‘that’s too much, bestie’” energy. 💀

It returns the address of the allocated buffer and updates buflen with the size of the allocated buffer. So you get the pointer and the actual size, cute. 🫶

💜 SEE ALSO 💜

• Kernel file: ./drivers/scsi/sd_zbc.c
• sd_zbc_parse_report(9)
• sd_zbc_do_report_zones(9)
• sd_zbc_zone_sectors(9)
• sd_zbc_report_zones(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)

signed off from ./drivers/scsi, October 2026 edition, for sd_zbc_alloc_report_buffer(9) — bye bestie, slay your zones 💋✨