srcu_read_unlock(9)

🌸 NAME 🌸

hiii bestie 💖 this is the srcu_read_unlock(9) page from the Kernel API Manual, manual name folded in near the top like a little name tag 🎀. It's giving cleanup era because srcu_read_unlock does one thing: unregister a old reader from an SRCU-protected structure. no cap.

✨ SYNOPSIS ✨

void srcu_read_unlock (struct srcu_struct *ssp , int idx );

🎀 ARGUMENTS 🎀

• ssp — the srcu_struct in which to unregister the old reader. this is the SRCU-struct main character of the call 🫶
• idx — return value from corresponding srcu_read_lock. literally the little ticket you got from the matching lock call 🎟️

💅 DESCRIPTION 💅

Exit an SRCU read-side critical section. that's it, that's the vibe — you're stepping out of the read-side critical section and closing the loop like a responsible icon 💅✨.

🦋 SEE ALSO 🦋

Kernel file ./include/linux/srcu.h is where the lore lives 🧚, and the whole squad is here:

• get_completed_synchronize_srcu(9)
• same_state_synchronize_srcu(9)
• srcu_read_lock_held(9)
• srcu_dereference_check(9)
• srcu_dereference(9)
• srcu_dereference_notrace(9)
• srcu_read_lock(9)
• srcu_read_lock_fast(9)
• srcu_read_lock_fast_updown(9)
• srcu_down_read_fast(9)
• srcu_read_lock_nmisafe(9)
• srcu_down_read(9)
• srcu_read_unlock_fast(9)
• srcu_read_unlock_fast_updown(9)
• srcu_up_read_fast(9)
• srcu_read_unlock_nmisafe(9)
• srcu_up_read(9)
• smp_mb__after_srcu_read_unlock(9)
• smp_mb__after_srcu_read_lock(9)

from the source/version corner ./include/linux 💖, dated October 2026 ⭐, for the srcu_read_unlock(9) page — periodt. 🎀