simple_ring_buffer_reserve(9)

💅 simple_ring_buffer_reserve(9) 💅

okay bestie, welcome to the Kernel API Manual page for simple_ring_buffer_reserve(9) — this is the little function that reserves an entry in @cpu_buffer, and we’re gonna read it together like the main characters we are. ✨

🌸 NAME 🌸

simple_ring_buffer_reserve - Reserve an entry in @cpu_buffer. periodt 💅

🦋 SYNOPSIS 🦋

the whole signature, exactly as it is, no edits bestie:

void * simple_ring_buffer_reserve (struct simple_rb_per_cpu *cpu_buffer
, unsigned long length , u64 timestamp );

🎀 ARGUMENTS 🎀

• cpu_buffer — A simple_rb_per_cpu. that’s the one you’re handing in, okay? 🫶
• length — Size of the entry in bytes. yes, bytes, slay. 📏
• timestamp — Timestamp of the entry. time-stamp core, literally. ⏰

💀 DESCRIPTION 💀

Returns the address of the entry where to write data or NULL.

that’s it. that’s the description. no cap, no extra lore, just the address where you write data — or NULL. iconic in its simplicity, honestly. 🌈

🔗 SEE ALSO 🔗

• Kernel file ./kernel/trace/simple_ring_buffer.c — the source file vibe 🧚
• simple_ring_buffer_swap_reader_page(9)
• simple_ring_buffer_commit(9)
• simple_ring_buffer_reset(9)
• simple_ring_buffer_init(9)
• simple_ring_buffer_unload(9)
• simple_ring_buffer_enable_tracing(9)

all the besties in the ring-buffer friend group, linked and accounted for 💖

mwah 💋 — this cutie comes from source/version ./kernel/trace, dated October 2026. catch you in the Kernel API Manual, bestie 🫶✨