init_srcu_struct_generic(9)

💅 init_srcu_struct_generic(9) — from the Kernel API Manual, bestie

okay so picture this: you're deep in the kernel, it's giving Kernel API Manual energy, and you need a sleep-RCU struct that's not static. Yeah. This is the page for you. 🫶

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✨ NAME ✨

init_srcu_struct_generic — initialize a sleep-RCU structure 🌸

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✨ SYNOPSIS ✨

int init_srcu_struct_generic (struct srcu_struct *ssp );

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✨ ARGUMENTS ✨

• ssp — the structure to initialize. that's her. that's the one you're setting up 💖

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✨ DESCRIPTION ✨

So here's the tea 🍓: use this in place of DEFINE_SRCU and DEFINE_STATIC_SRCU for non-static srcu_struct structures — the ones that are gonna get passed to srcu_read_lock, srcu_read_lock_nmisafe, and friends. iykyk.

And like, it is necessary to invoke this on a given srcu_struct before passing that srcu_struct to any other function. no cap. not optional. do it first, bestie, or the vibe check fails 😭

Each srcu_struct represents a separate domain of SRCU protection ✨ — so every one of them is living its own main character life, fully independent. 👑

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✨ SEE ALSO ✨

• Kernel file ./kernel/rcu/srcutree.c — that's where she lives 🧚
• init_srcu_struct_fast(9)
• init_srcu_struct_fast_updown(9)
• cleanup_srcu_struct(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)

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and that's the whole page, periodt 💅 this little icon came out of ./kernel/rcu, dated October 2026, and it's filed under init_srcu_struct_generic(9) — go slay your SRCU setup, bestie ✨🎀🦋