tracing_reco...sched_switch(9)

💅 tracing_reco...sched_switch(9) — from the Kernel API Manual, bestie 🫶

okay so real talk, this one is a whole function and the name is criminally long, but bestie it SLAPS once you get it. it's called tracing_record_taskinfo_sched_switch and yes we're abbreviating it in the title because girl, look at it 😭

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✨ NAME ✨

tracing_record_taskinfo_sched_switch — the little icon that records task info when a sched_switch happens 🔥 lowkey its whole personality.

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🌸 SYNOPSIS 🌸

void tracing_record_taskinfo_sched_switch (struct task_struct *prev ,
       struct task_struct *next , int flags );

it returns void, so like… don't go looking for a return value, it doesn't have one, periodt 💅

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🎀 ARGUMENTS 🎀

• prev — the previous task during sched_switch. the one getting off the ride 🙈
• next — the next task during sched_switch. the one hopping on, main character energy incoming 👑
• flags — the vibe check for what you actually wanna record:
  • TRACE_RECORD_CMDLINE for recording comm 💖
  • TRACE_RECORD_TGID for recording tgid 🌈

ngl those two flags are in the same breath in the original, so read it as one vibe: cmd flags for comm, tgid flags for tgid. iykyk 🧚

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🦋 SEE ALSO 🦋

• Kernel file ./kernel/trace/trace_sched_switch.c — literally the source, go read it bestie 📖
• tracing_record_taskinfo(9) — its sibling, obsessed 💜

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so yeah, that's the whole thing: two tasks, some flags, one void, zero drama ✨ fr fr it's giving "small function, big tracing energy" 🍓

signed off from ./kernel/trace, dated October 2026, with love and a little sparkle 🎀⭐💅