cleanup_srcu_struct(9)

💅 cleanup_srcu_struct(9) — deconstruct a sleep-RCU structure

okay so bestie, welcome to the Kernel API Manual ✨ this one's a little cutie from the kernel docs — short page, but lowkey important, so pay attention 🫶

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✨ NAME ✨

cleanup_srcu_struct — deconstruct a sleep-RCU structure

Like, it's the breakup function for your SRCU struct. 💔✨

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🌸 SYNOPSIS 🌸

void cleanup_srcu_struct (struct srcu_struct *ssp );

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🎀 ARGUMENTS 🎀

• ssp — the structure to clean up. That's it, that's the whole argument. Give it the srcu_struct you want deconstructed and let the kernel cook. 👑

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🦋 DESCRIPTION 🦋

Okay so here's the vibe check: you must invoke this after you are finished using a given srcu_struct that was initialized via init_srcu_struct. 👏

That's not a suggestion, that's the whole assignment. If you don't call it? You leak memory. 😭 Like, actual memory leak. Not cute. Not slay. So clean up after yourself, bestie — it's giving basic hygiene. 🧚

⚠️ fr fr: skip this and the memory just sits there forever. no cap, the kernel is not your mom, it will not tidy your room for you. 🙈

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🔥 SEE ALSO 🔥

Kernel file ./kernel/rcu/srcutree.c plus the whole friend group:

• init_srcu_struct_generic(9)
• init_srcu_struct_fast(9)
• init_srcu_struct_fast_updown(9)
• call_srcu(9)
• synchronize_srcu_expedited(9)
• synchronize_srcu(9)
• get_state_synchronize_srcu(9)
• start_poll_synchronize_srcu(9)
• poll_state_synchronize_srcu(9)
• srcu_barrier(9)
• srcu_expedite_current(9)
• srcu_batches_completed(9)

iykyk — go read those next, they're iconic. 💜

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so anyway, that's the page 🎀 this lil manual page lives under ./kernel/rcu, dated October 2026, and honestly? she ate. mwah 💅✨