PSP LOCKING(9)

💅 PSP locking

okay so this page is from the Kernel API Manual, and it's short but bestie, it's important 🫶

psp_devs_lock protects the psp_devs xarray, periodt. 🔒

The ordering is the whole vibe: you take psp_devs_lock first, and then the instance lock. That's the rule — don't flip it. 🙈

Each instance is protected by RCU, and it has a refcount. ✨

When a driver unregisters, the instance gets flushed, but the struct sticks around. Not it refusing to leave the group chat 😭

🌸 SEE ALSO 🌸

• Kernel file ./net/psp/psp_main.c
• psp_dev_check_access(9)
• psp_dev_create(9)
• psp_dev_unregister(9)

xoxo, this one is from ./net/psp, dated October 2026 💖 go be iconic with those locks, bestie ✨