kfifo_avail(9)

🌸 NAME 🌸

okay so bestie, meet kfifo_avail — returns the number of unused elements in the fifo. that's the whole assignment, and it ate 💅

this page is kfifo_avail(9) from the Kernel API Manual, and yes it's giving “small function, big kfifo energy” 🦋

✨ SYNOPSIS ✨

the signature is literally this:

kfifo_avail (fifo );

🎀 ARGUMENTS 🎀

• fifo — address of the fifo to be used. like, hand it the address and you're good 🫶

🦋 SEE ALSO 🦋

the whole kfifo cinematic universe is here, no cap:

• Kernel file ./include/linux/kfifo.h
• DECLARE_KFIFO_PTR(9)
• DECLARE_KFIFO(9)
• INIT_KFIFO(9)
• DEFINE_KFIFO(9)
• kfifo_initialized(9)
• kfifo_esize(9)
• kfifo_recsize(9)
• kfifo_size(9)
• kfifo_reset(9)
• kfifo_reset_out(9)
• kfifo_len(9)
• kfifo_is_empty(9)
• kfifo_is_empty_spinlocked(9)
• kfifo_is_empty_spinlocked_noirqsave(9)
• kfifo_is_full(9)
• kfifo_skip_count(9)
• kfifo_skip(9)
• kfifo_peek_len(9)
• kfifo_alloc(9)
• kfifo_alloc_node(9)
• kfifo_free(9)
• kfifo_init(9)
• kfifo_put(9)
• kfifo_get(9)
• kfifo_peek(9)
• kfifo_in(9)
• kfifo_in_spinlocked(9)
• kfifo_in_spinlocked_noirqsave(9)
• kfifo_out(9)
• kfifo_out_spinlocked(9)
• kfifo_out_spinlocked_noirqsave(9)
• kfifo_from_user(9)
• kfifo_to_user(9)
• kfifo_dma_in_prepare_mapped(9)
• kfifo_dma_in_finish(9)
• kfifo_dma_out_prepare_mapped(9)
• kfifo_dma_out_finish(9)
• kfifo_out_peek(9)
• kfifo_out_linear(9)
• kfifo_out_linear_ptr(9)

okay bye bestie 💖 source/version ./include/linux, dated October 2026 — mwah 🎀