refcount_de...lock_irqsave(9)

✨ NAME ✨

okay so this is the refcount_de...lock_irqsave(9) page from the Kernel API Manual, and it's giving “return holding spinlock with disabled interrupts if able to decrement refcount to 0.” Slay. 💅

🎀 SYNOPSIS 🎀

bool refcount_dec_and_lock_irqsave (refcount_t *r , spinlock_t *lock ,
unsigned long *flags );

🦋 ARGUMENTS 🦋

• r — the refcount. literally the refcount bestie.
• lock — the spinlock to be locked. 🔒
• flags — the saved IRQ-flags if it's acquired. 🫶

💅 DESCRIPTION 💅

Same as refcount_dec_and_lock above, except that the spinlock is acquired with disabled interrupts. no cap, that's the whole vibe. ✨

🌈 RETURN 🌈

Returns true and holds the spinlock if it's able to decrement the refcount to 0; false otherwise. periodt. 🔥

👑 SEE ALSO 👑

• Kernel file ./lib/refcount.c
  • refcount_dec_if_one(9)
  • refcount_dec_not_one(9)
  • refcount_dec_and_mutex_lock(9)
  • refcount_dec_and_lock(9)

🫶 cute little sign-off, bestie: source/version is ./lib, date is October 2026, and the page is refcount_de...lock_irqsave(9). bye 💖✨