pt_buffer_region_size(9)

💅 pt_buffer_region_size(9) — a Kernel API Manual moment 🎀

okay so before we even get into it: this is a page from the Kernel API Manual, and yes bestie, we're reading kernel internals for fun now, that's just who we are 💖

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✨ NAME ✨

pt_buffer_region_size — obtain current output region's size 🦋

like, it literally tells you how big the output region you're currently sitting in is. that's it. that's the whole vibe.

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🌸 SYNOPSIS 🌸

size_t pt_buffer_region_size (struct pt_buffer *buf );

(yes the space before the ) is staying, it's iconic, don't touch it 💅)

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🫶 ARGUMENTS 🫶

• buf — PT buffer. that's the whole description. one line. she said "PT buffer" and nothing else, and honestly? confident. minimal. main character energy 👑

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🔥 SEE ALSO 🔥

okay this is the part where the page goes absolutely feral with cross-references, and we are NOT skipping a single one — every link stays, no cap:

• Kernel file ./arch/x86/events/intel/pt.c
• struct topa(9)
• struct topa_page(9)
• topa_alloc(9)
• topa_free(9)
• topa_insert_table(9)
• topa_table_full(9)
• topa_insert_pages(9)
• pt_topa_dump(9)
• pt_buffer_advance(9)
• pt_update_head(9)
• pt_buffer_region(9)
• pt_handle_status(9)
• pt_read_offset(9)
• pt_buffer_reset_markers(9)
• pt_buffer_reset_offsets(9)
• pt_buffer_fini_topa(9)
• pt_buffer_init_topa(9)
• pt_buffer_setup_aux(9)
• pt_buffer_free_aux(9)
• intel_pt_interrupt(9)

that's twenty links and one file path, and every single one of them is here because we don't do half-finished around here ✨ literally all of them. go read them. iykyk 🌈

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ngl the whole page is short, but that's the assignment — it does one thing (hands you the current output region's size) and it does it slayfully 💀

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mwah 💖 thanks for reading bestie, this page came from ./arch/x86/events/intel and it's dated October 2026 — see you in the next (9) section, muah, bye 🎀🦋⭐