trace_pid_list_set(9)

🎀 NAME 🎀

okay bestie, welcome to the Kernel API Manual — today's main character is trace_pid_list_set(9), and its whole vibe is: add a pid to the list. slay. ✨

✨ SYNOPSIS ✨

int trace_pid_list_set (struct trace_pid_list *pid_list , unsigned int
pid );

🦋 ARGUMENTS 🦋

• pid_list — the pid list you're adding the pid to, obviously 💅
• pid — the pid you're adding. that's it, that's the argument 🫶

🌸 DESCRIPTION 🌸

So this function adds pid to pid_list. iconic behavior, no cap. Usually this happens explicitly when a user adds a task to be traced — very "I choose you" energy. It can also happen indirectly by the fork function when children should be traced and a task's pid is in the list. iykyk. 🔥

Return 0 on success, negative otherwise. periodt. If you get negative, that is not a success vibe, bestie 😭.

🌈 SEE ALSO 🌈

Kernel file ./kernel/trace/pid_list.c — go read it, it's giving source-of-truth. Also check out these icons:

• trace_pid_list_is_set(9)
• trace_pid_list_clear(9)
• trace_pid_list_next(9)
• trace_pid_list_first(9)
• trace_pid_list_alloc(9)
• trace_pid_list_free(9)

mwah 💋 that's the whole page — source/version: ./kernel/trace, date: October 2026. drink water and check your return values, bestie 💖