scsi_intern...block_nowait(9)

📦 version 7.3.1, in nixpkgs unstable

💅 scsi_internal_device_block_nowait — from the Kernel API Manual, bestie ✨

Okay so picture this: you're deep in the kernel, in the Kernel API Manual, and you need to pause a SCSI device without, like, going to sleep on it. That's this function. Welcome to the group chat 🫶

🌸 NAME 🌸

scsi_internal_device_block_nowait — the "try to transition to the SDEV_BLOCK state" girlie 🎀

(yes, the header up top cuts it off as scsi_intern...block_nowait(9) — she's just long, it's fine, it's giving main character energy)

✨ SYNOPSIS ✨

int scsi_internal_device_block_nowait (struct scsi_device *sdev );

🎀 ARGUMENTS 🎀

  • sdev — the device you're blocking, bestie. That's the one. 💖

🦋 DESCRIPTION 🦋

So what she does is: pause SCSI command processing on the specified device. That's it, that's the whole vibe.

And the "nowait" in her name is not a drill — she does not sleep. No napping, no blocking, no "brb one sec". Iconic behaviour honestly. 😭

She returns zero if successful, or a negative error code upon failure. So like, zero = slay, negative = something went sideways. 💀

🔥 NOTES 🔥

This routine transitions the device to the SDEV_BLOCK state — and heads up, that must be a legal transition. Not optional, not a suggestion, no cap. ⚠️

When the device is in this state, command processing is paused until the device leaves the SDEV_BLOCK state. She's on hold, she's in her quiet era, do not disturb. 🙈

See also scsi_internal_device_unblock_nowait — that's the one who lets her out again. 🔓✨

👑 SEE ALSO 👑

Kernel file ./drivers/scsi/scsi_lib.c — and honestly the whole extended friend group:

Mwah 💋 — this page lives in ./drivers/scsi, dated October 2026, and she goes by scsi_intern...block_nowait(9). Bestie, go block some devices (legally). 🌈⭐

📦 where this page comes from