sys_sched_getparam(9)

💅 sys_sched_getparam — a Kernel API Manual moment 🎀

okay so bestie, welcome to sys_sched_getparam(9), the Kernel API Manual page you didn't know you needed. this one is short and sweet and honestly kind of iconic for it ✨

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🌸 NAME 🌸

sys_sched_getparam — get the RT priority of a thread 🧵💖

like, that's literally it. that's the whole job. no cap.

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🦋 SYNOPSIS 🦋

long sys_sched_getparam (pid_t pid , struct sched_param __user * param
);

look at that signature. it's giving "small function, big responsibility" 🔥

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🎀 ARGUMENTS 🎀

• pid — the pid in question. yeah. that one. the process you're curious about 👀
• param — structure containing the RT priority. it's a struct sched_param __user *, so it's pointing at user space, and that's where the priority is gonna land 🫶

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👑 RETURN 👑

On success, 0 and the RT priority is in param. Otherwise, an error code. that's the vibe check — zero means slay, anything else means something went sideways 😭

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💜 SEE ALSO 💜

Kernel file ./kernel/sched/syscalls.c — the source, the origin story, the main character ✨

and then, honestly, the whole friend group:

• task_prio(9)
• idle_cpu(9)
• idle_task(9)
• find_process_by_pid(9)
• sched_setscheduler(9)
• sched_setscheduler_nocheck(9)
• sys_sched_setscheduler(9)
• sys_sched_setparam(9)
• sys_sched_setattr(9)
• sys_sched_getscheduler(9)
• sys_sched_getattr(9)
• sys_sched_setaffinity(9)
• sys_sched_getaffinity(9)
• sys_sched_yield(9)
• yield(9)
• yield_to(9)
• sys_sched_get_priority_max(9)
• sys_sched_get_priority_min(9)
• sys_sched_rr_get_interval(9)

iykyk 💅 go read them all, they're all linked, that's the point of a SEE ALSO, bestie 🦋

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mwah 💋 this page lives in ./kernel/sched and it's dated October 2026 — that's the whole sign-off, take care, drink water, and remember: on success you get 0 and the priority is in param 🌈⭐