skb_availroom(9)

📦 version 7.3.1, in nixpkgs unstable

💅 skb_availroom — bytes at buffer end

okay so this is a page from the Kernel API Manual (yes, the kernel has manpages, she's fancy like that 🎀) and it's all about one lil function that tells you how much room you've got left at the tail of a buffer. short page, but she ate.

✨ NAME ✨

skb_availroom — bytes at buffer end

like, literally that. bytes. at the end of the buffer. no cap.

🌸 SYNOPSIS 🌸

int skb_availroom (const struct sk_buff *skb );

she takes one thing and gives you back an int, bestie. that's the whole vibe.

🦋 ARGUMENTS 🦋

  • skb — the buffer you wanna check 👀 that's it, that's the argument.

💖 DESCRIPTION 💖

so what she does is: she returns the number of bytes of free space at the tail of an sk_buff — but only one that was allocated by sk_stream_alloc. like, that's her whole personality. free space at the end. count it. return it. iconic.

ngl that's the entire description, bestie — this function is short and knows it. main character energy, zero filler. 💅

🌈 SEE ALSO 🌈

okay this is where it gets unhinged — the cross-reference list is long long. like, she knows everybody. but fr fr, if you're poking around sk_buff land, these are your people:

like I said. she knows everyone. iykyk 🫶

and that's the whole page, bestie — short, sweet, slays. this one came from ./include/linux and the version/date stamped on it is October 2026, so go forth and count your tail bytes 💜⭐🍓

📦 where this page comes from