msc_win_oldest_sg(9)

✨ msc_win_oldest_sg(9) ✨

okay so bestie, welcome to the msc_win_oldest_sg(9) page from the Kernel API Manual 💖 this is the little kernel helper that hunts down the oldest block chillin' in a given window. grandma block energy 👵✨ let's get into it.

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🌸 NAME 🌸

msc_win_oldest_sg — locate the oldest block in a given window 🕵️‍♀️

🦋 SYNOPSIS 🦋

struct scatterlist * msc_win_oldest_sg (struct msc_window *win );

🎀 ARGUMENTS 🎀

• win — the window we're snooping on, bestie 👀 that's the window to look at.

👑 RETURN 👑

the index of the block with the oldest data 💅 like, which one's been sitting there the longest? that's the one. periodt.

ngl it's giving "return type says struct scatterlist * but the description says index" — that's literally what the original page says tho, so I'm not gonna gaslight you and change it 🙈 take it up with the manpage, not me.

🌈 SEE ALSO 🌈

okay this list is long but we don't skip, we don't scroll past, we read every single one 🫶 all of these live in the 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_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_contig_get_page(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)

like, that's the whole friend group and they all showed up to the party 💀 msc_buffer_unlocked_free_unless_used is genuinely main character energy with a name that long, iykyk.

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anyway, that's the whole page!! no cap, nothing left out 💜 mwah 💋

source: ./drivers/hwtracing/intel_th · dated October 2026 — ok that's a wrap bestie, go read the rest of the intel_th lore, ily, bye!! 🌸🦋💖