kfifo_out_sp...ed_noirqsave(9)

📦 version 7.3.1, in nixpkgs unstable

💅 kfifo_out_sp...ed_noirqsave (9) — from the Kernel API Manual, bestie 🎀

okay so picture this: you're deep in the kernel, you've got a fifo, you've got data, and you need it out — but you also don't want to be rude and turn off interrupts for the whole class. yeah. this function is literally that girl. welcome to the group chat. ✨🦋

🌸 NAME 🌸

kfifo_out_spinlocked_noirqsave — grab data out of the fifo while using a spinlock for locking, and don't disable interrupts. no cap, that's the whole vibe. 💖

⭐ SYNOPSIS ⭐

kfifo_out_spinlocked_noirqsave (fifo , buf , n , lock );

like, that's it. four args. she's lowkey minimal. 🎀

🧚 ARGUMENTS 🧚

  • fifo — the address of the fifo you're working with. the main character, obvi. 👑
  • buf — pointer to the storage buffer, aka where the goods are gonna land. 🍓
  • n — max. number of elements to get. maximum, bestie — she will not exceed it. 🙈
  • lock — pointer to the spinlock you're using for locking. she needs her security blanket. 💅

🔥 DESCRIPTION 🔥

so here's the tea: this is a variant of kfifo_out_spinlocked. the way that it differs? it uses spin_lock/unlock for locking, and it does not disable interrupts.

that's it. that's the whole personality. highkey iconic for exactly one reason and we respect it. 🫶💜

🌈 SEE ALSO 🌈

all the siblings, cousins, and extended family live in the kernel file ./include/linux/kfifo.h — go say hi:

ngl this one is short and sweet, but the family tree is thriving. iykyk. 🌸

okay that's the page!! mwah 💋 this lil doc came from ./include/linux, dated October 2026, and yeah — that's the source/version and date, so we're shouting them out properly at the very end like the good little citation-besties we are. periodt. 💅✨🎀🦋💖🔥👑🌈⭐💀🍓🧚💜🫶

📦 where this page comes from