rcuref_is_dead(9)

🌸 NAME 🌸

Hiii bestie 💖 welcome to the rcuref_is_dead(9) page from the Kernel API Manual. The whole serve here is literally checking if the rcuref has been already marked dead — that's the name tea, periodt. 💅

✨ SYNOPSIS ✨

Okay so the signature is giving:

bool rcuref_is_dead (rcuref_t *ref );

🎀 ARGUMENTS 🎀

• ref — Pointer to the reference count. That's the whole argument, bestie: just a pointer to the reference count. 🫶

💅 RETURN 💅

It returns true if the object has been marked DEAD 👑. This signals that a previous invocation of rcuref_put returned true on this reference counter, meaning the protected object can safely be scheduled for deconstruction. That's the green flag, no cap. 🟢✨

Otherwise, it returns false. No DEAD marker, no green light. 🚫💀

🦋 SEE ALSO 🦋

Kernel file ./include/linux/rcuref.h — plus the whole squad: rcuref_init(9), rcuref_read(9), rcuref_get(9), rcuref_put_rcusafe(9), rcuref_put(9). 💖

xoxo, from ./include/linux — October 2026 — rcuref_is_dead(9) out 💅🎀