trace_seq_putmem(9)

💅 trace_seq_putmem — kernel API manual, bestie edition ✨

okay so like… this one lives in the Kernel API Manual, and it's genuinely such a little icon. it's trace_seq_putmem(9) and it does exactly one thing but does it so well. let's get into it 🎀

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✨ NAME ✨

trace_seq_putmem — write raw data into the trace_seq buffer. no cap, that's the whole vibe. 🫶

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🌸 SYNOPSIS 🌸

void trace_seq_putmem (struct trace_seq *s , const void *mem , unsigned
int len );

literally just copy the code exactly as it is, do not touch it, i don't make the rules 💅

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🦋 ARGUMENTS 🦋

• s — the trace sequence descriptor. your main character struct, the whole point of the operation 🎀
• mem — The raw memory to copy into the buffer. raw. unfiltered. iconic 💖
• len — The length of the raw memory to copy (in bytes). bytes, bestie, bytes 🍓

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🔥 DESCRIPTION 🔥

okay so picture this: there may be cases where raw memory needs to be written into the buffer, and a strcpy would simply not work. like, it's giving wrong tool for the job, it's giving strcpy walked into the wrong function. 😭

and that's where this queen comes in ✨ — using this function allows for such cases. that's it, that's the whole plot. trace_seq_putmem said "i'll handle the raw memory" and then it DID. periodt 💅👑

ngl this is one of those functions where the entire documentation is basically "sometimes you need the raw version" and honestly? respect. the confidence. 🌈

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👑 SEE ALSO 👑

Kernel file ./kernel/trace/trace_seq.c — go read it, iykyk 🧚

• trace_print_seq(9)
• trace_seq_printf(9)
• trace_seq_bitmask(9)
• trace_seq_bitmask_list(9)
• trace_seq_vprintf(9)
• trace_seq_bprintf(9)
• trace_seq_puts(9)
• trace_seq_putc(9)
• trace_seq_putmem_hex(9)
• trace_seq_path(9)
• trace_seq_to_user(9)

like the whole trace_seq friend group showed up to the function. we love a supportive cast 🫶✨

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okay so that's the page!! this gem comes to you from ./kernel/trace and it's dated October 2026 — mwah, sending you off with a kiss from the kernel 💖🎀