ENUM PRIO_POLICY(9)

💅 enum prio_policy(9) — Kernel API Manual 💅

okay bestie, welcome to the manual page for enum prio_policy(9) — yes, the manual name is right there, and this whole page is a Kernel API Manual moment about the I/O priority class policy. slay. 🎀

🎀 NAME 🎀

enum prio_policy — I/O priority class policy. That's the whole name vibe, no cap. ✨

✨ SYNOPSIS ✨

enum prio_policy {
    POLICY_NO_CHANGE ,
    POLICY_PROMOTE_TO_RT ,
    POLICY_RESTRICT_TO_BE ,
    POLICY_ALL_TO_IDLE ,
    POLICY_NONE_TO_RT

};

🌸 Constants 🌸

• POLICY_NO_CHANGE — the default behavior, bestie: do not modify the I/O priority class. Leave it exactly where it is. 🫶
• POLICY_PROMOTE_TO_RT — this one modifies no-IOPRIO_CLASS_RT to IOPRIO_CLASS_RT. literally a promotion arc. 👑
• POLICY_RESTRICT_TO_BE — this one modifies IOPRIO_CLASS_NONE and IOPRIO_CLASS_RT into IOPRIO_CLASS_BE. it's giving restriction, but make it organized. 💅
• POLICY_ALL_TO_IDLE — changes the I/O priority class into IOPRIO_CLASS_IDLE. everyone to idle, no exceptions. 💀
• POLICY_NONE_TO_RT — an alias for POLICY_PROMOTE_TO_RT. same energy, different name, iykyk. 🌈

🦋 Description 🦋

also see <linux/ioprio.h> — that's the SEE ALSO reference, bestie, keep it in mind. ✨

👑 SEE ALSO 👑

• Kernel file ./block/blk-ioprio.c
• struct ioprio_blkcg(9)

and that's the page, bestie. source/version info: ./block; date: October 2026; manual name: enum prio_policy(9) — byeee, go be iconic with your I/O priority class policy 💖✨