sd_release(9)

💅 sd_release — Kernel API Manual

okay so bestie, welcome to sd_release(9) — that's the kernel API manual page, and yes we're reading it together, grab a strawberry 🍓

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✨ NAME ✨

sd_release — the function that gets invoked when the (last) close(2) is called on this scsi disk. no cap, that's literally the whole job 💅

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🌸 SYNOPSIS 🌸

void sd_release (struct gendisk *disk );

🎀 ARGUMENTS 🎀

• disk — the disk to release, bestie. that's it. that's the argument 🦋

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💖 DESCRIPTION 💖

Returns 0.

that's it. that's the description. iconic minimalism, honestly 👑

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🔥 NOTE 🔥

⚠️ heads up babes — this one may block (uninterruptible) if error recovery is underway on this disk. so like… she might just sit there and not move until the disk sorts itself out 😭 do with that what you will.

Locking: called with disk->open_mutex held. fr fr, keep that in mind — the mutex is already yours when you walk in 🫶

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🦋 SEE ALSO 🦋

Kernel file ./drivers/scsi/sd.c — like, the whole source, go read it iykyk 💜 — plus these absolute icons:

• sd_group_number(9)
• sd_open(9)
• sd_ioctl(9)
• sd_check_events(9)
• sd_eh_reset(9)
• sd_eh_action(9)
• sd_done(9)
• sd_read_block_provisioning(9)
• sd_read_cpr(9)
• sd_revalidate_disk(9)
• sd_unlock_native_capacity(9)
• sd_format_disk_name(9)
• sd_probe(9)
• sd_remove(9)
• init_sd(9)
• exit_sd(9)

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and that's the page, bestie 🌈 this whole thing lives over in ./drivers/scsi and the manual itself is dated October 2026 — so like, future vibes only ⭐ anyway ily, go close some disks 💖🎀🌸