srcu_up_read(9)

💅 srcu_up_read(9) 💅

okay bestie, welcome to this page from the Kernel API Manual — we're gonna make SRCU make sense, no cap. 🫶

---

💖 NAME 💖

srcu_up_read — unregister a old reader from an SRCU-protected structure. ✨

---

🌸 SYNOPSIS 🌸

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

---

🎀 ARGUMENTS 🎀

• ssp — the srcu_struct in which to unregister the old reader. 💅
• idx — the return value from the corresponding srcu_read_lock. ⭐

---

🦋 DESCRIPTION 🦋

Okay so this one exits an SRCU read-side critical section — but, and this is the whole vibe, not necessarily from the same context as the maching srcu_down_read. 😭💜

---

✨ SEE ALSO ✨

go peek at these, bestie:

• Kernel file ./include/linux/srcu.h
• 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(9)
• srcu_read_unlock_fast(9)
• srcu_read_unlock_fast_updown(9)
• srcu_up_read_fast(9)
• srcu_read_unlock_nmisafe(9)
• smp_mb__after_srcu_read_unlock(9)
• smp_mb__after_srcu_read_lock(9)

---

byeee 💖 source/version: ./include/linux • date: October 2026 • page: srcu_up_read(9) — periodt. 🎀🔥