mas_reset(9)

✨ mas_reset — the kernel API manual, but make it cute ✨

okay so bestie, you're reading the mas_reset page from the Kernel API Manual (mas_reset(9)), and honestly? it's a little self-care moment for your maple tree. let me tell you everything 💅

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🌸 NAME 🌸

mas_reset — reset a Maple Tree operation state. that's it, that's the whole vibe. it's giving "factory reset but make it maple" 🍓

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🦋 SYNOPSIS 🦋

void mas_reset (struct ma_state *mas );

literally the whole signature, no notes. void return, one pointer argument, clean and iconic ✨

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🎀 ARGUMENTS 🎀

• mas — the Maple Tree operation state. that's your little guy. your state. your main character struct 💖

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🔥 DESCRIPTION 🔥

okay so here's the tea: mas_reset resets the error or walk state of the mas, so that future walks of the array will start from the root. like, it re-centers the whole thing, back to the top, fresh start, new me 🧚

use this if you have dropped the lock and want to reuse the ma_state. yes, exactly that. you let go of the lock, so now your state is stale and lowkey unusable until you reset it. this is the reset. periodt 👑

ngl this is the "log out, log back in" of maple tree state. no cap.

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🌈 CONTEXT 🌈

Any context. literally any. do it in a process, do it in an interrupt, do it while you're waiting for your iced coffee — the manpage says any context and the manpage does not lie 🫶

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👑 SEE ALSO 👑

Kernel file ./include/linux/maple_tree.h, Maple tree flags(9), MTREE_INIT(9), MTREE_INIT_EXT(9), mtree_empty(9), mas_for_each(9), mas_for_each_rev(9), __mas_set_range(9), mas_set_range(9), mas_set(9), mt_init_flags(9), mt_init(9), mt_clear_in_rcu(9), mt_set_in_rcu(9), mt_for_each(9) — a whole friend group, honestly. go say hi 😌

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so yeah, that's mas_reset from the Kernel API Manual, straight out of ./include/linux, and the page is dated October 2026 🌸 stay safe, keep your locks honest, and reset that state whenever you've dropped one 💜

🔒💖 slay, and read the source 🎀✨