msc_buffer_contig_get_page(9)

💅 msc_buffer_contig_get_page(9)

okay so bestie, welcome to the Kernel API Manual — this one's msc_buffer_contig_get_page(9), a tiny little function that's giving "short but essential" energy. no cap, she's small, but she works. ✨

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🎀 NAME 🎀

msc_buffer_contig_get_page — literally just find a page at a given offset. that's it. that's the whole job. 🫶

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🌸 SYNOPSIS 🌸

struct page * msc_buffer_contig_get_page (struct msc *msc , unsigned
long pgoff );

she returns a struct page *, takes an struct msc * and an unsigned long, and yes the line break up there in the middle of unsigned long is exactly how the original rolls. iconic formatting, no notes. 💀

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✨ ARGUMENTS ✨

• msc — the MSC, and heads up, it's gotta be configured in SINGLE mode. like, that's the vibe check this function is doing. 🧚
• pgoff — the page offset. the "where we lookin" of it all. 🎯

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👑 RETURN 👑

you get the page back if pgoff is within the range — and NULL otherwise. so like, if it's out of range? nothing. empty. void. NULL. don't come for her about it. 💅

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🦋 SEE ALSO 🦋

okay this is the part where she tags all her mutuals, and it is a long list, so buckle up:

Kernel file ./drivers/hwtracing/intel_th/msu.c, struct msc_window(9), struct msc_iter(9), struct msc(9), struct msu_buffer_entry(9), msc_is_last_win(9), msc_next_window(9), msc_find_window(9), msc_oldest_window(9), msc_win_oldest_sg(9), msc_buffer_iterate(9), msc_buffer_clear_hw_header(9), msc_configure(9), msc_disable(9), msc_buffer_contig_alloc(9), msc_buffer_contig_free(9), msc_buffer_win_alloc(9), msc_buffer_win_free(9), msc_buffer_relink(9), msc_buffer_free(9), msc_buffer_alloc(9), msc_buffer_unlocked_free_unless_used(9), msc_buffer_free_unless_used(9), msc_buffer_get_page(9), struct msc_win_to_user_struct(9), msc_win_to_user(9), intel_th_msc_window_unlock(9)

fr fr, that's the whole squad. 🌈

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💖 tiny reminder bestie: msc must be SINGLE mode, and out-of-range pgoff gets you NULL. that's the entire personality of this function.

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and that's the page!! footer says ./drivers/hwtracing/intel_th, dated October 2026 — like, love that for her. mwah, bye bestie 💜🎀⭐