kfifo_is_empty_spinlocked(9)

📦 version 7.3.1, in nixpkgs unstable

👑 kfifo_is_empty_spinlocked(9) — a vibe check for your fifo 💅

okay so bestie, we're in the Kernel API Manual today and this one is honestly so good. it's kfifo_is_empty_spinlocked and its whole personality is: "is this fifo empty? let me lock it first so nobody ruins the moment." no cap, that's it. that's the function. 💖

✨ NAME ✨

kfifo_is_empty_spinlocked — returns true if the fifo is empty using a spinlock for locking 🎀

like literally it just tells you if the fifo is empty, and it does the locking with a spinlock. main character energy fr fr.

🦋 SYNOPSIS 🦋

kfifo_is_empty_spinlocked (fifo , lock );

that's the whole call. two args, no drama. ✨

🌸 ARGUMENTS 🌸

  • fifo — address of the fifo to be used. yes bestie, the address — we're passing the pointer, not the whole fifo, we're not carrying that thing around 🙈
  • lock — spinlock to be used for locking. this is the bouncer at the door of the fifo, it decides who gets to peek 👑

💜 SEE ALSO 💜

your kfifo group chat, in full, no one left on read:

ngl bestie, kfifo_is_empty_spinlocked_noirqsave(9) is right there too if that's your situation — this page isn't the only locked-empty check in the building 👀

okay that's the whole page and honestly? iconic. this came out of ./include/linux from the Kernel API Manual, dated October 2026 — so like, future slay 🌈⭐ go read your kfifo docs bestie, i'm obsessed with you 🫶💖🎀

📦 where this page comes from