trace_seq_buffer_ptr(9)

💅 trace_seq_buffer_ptr(9) — like, the Kernel API Manual bestie edition 🎀

okay so welcome to the Kernel API Manual, section 9, and today's main character is trace_seq_buffer_ptr ✨ (yes that whole string is the whole vibe, no cap).

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🌸 NAME 🌸

trace_seq_buffer_ptr — returns a pointer to the next location in the buffer 🫶

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✨ SYNOPSIS ✨

char * trace_seq_buffer_ptr (struct trace_seq *s );

literally that's it, that's the whole signature 💅

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🎀 ARGUMENTS 🎀

• s — the trace sequence descriptor 🦋 (your lil trace seq bestie, she's the one holding the buffer)

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💖 DESCRIPTION 💖

So what does she do? She returns the pointer to the buffer where the next write to the buffer is gonna happen. 🔥 That's the whole gig.

And why is that iconic? Because it's useful to save the location that is about to be written to, and then return the result of that write. 🧚 Like, you grab the spot first, then you come back with receipts. iykyk 💀

ngl this is one of those "small but mighty" functions — she's not flashy, she just hands you the address and lets you do your thing 👑

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🌈 SEE ALSO 🌈

• Kernel file ./include/linux/trace_seq.h 📄
• trace_seq_used(9)
• trace_seq_has_overflowed(9)
• trace_seq_pop(9)

go read those too fr fr, they're the friend group 💜

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✨ that's the whole page bestie, you ate ✨

okay so this one came from the ./include/linux source, dated October 2026, and it's literally titled trace_seq_buffer_ptr(9) — and that's the cute lil sign-off, mwah 💋🌸