preempt_notifier_register(9)

💖 preempt_notifier_register(9) 💖

okay so bestie, welcome to the Kernel API Manual — this page is literally named preempt_notifier_register, and the vibe is: tell me when current is being preempted & rescheduled. no cap, that's the whole name. ✨

🌸 NAME 🌸

preempt_notifier_register — tell me when current is being preempted & rescheduled. That's it, that's the energy. 💅

🦋 SYNOPSIS 🦋

void preempt_notifier_register (struct preempt_notifier *notifier );

🎀 ARGUMENTS 🎀

• notifier — the notifier struct you're registering, bestie. yes, that exact one. 🫶

👑 SEE ALSO 👑

The kernel file to peek at is <code>./kernel/sched/core.c</code>, and these are the whole squad:

• wake_q_add(9)
• wake_q_add_safe(9)
• task_curr(9)
• try_to_wake_up(9)
• task_call_func(9)
• cpu_curr_snapshot(9)
• wake_up_process(9)
• preempt_notifier_unregister(9)
• prepare_task_switch(9)
• finish_task_switch(9)
• schedule_tail(9)
• schedule_preempt_disabled(9)
• preempt_schedule_notrace(9)
• init_idle(9)
• curr_task(9)

cute little sign-off: this page comes from source/version <code>./kernel/sched</code>, dated <code>October 2026</code>, and it's filed under preempt_notifier_register(9). mwah 💋💖