af_alg_wait_for_wmem(9)

📦 version 7.3.1, in nixpkgs unstable

✨ af_alg_wait_for_wmem — wait for availability of writable memory ✨

okay so bestie, this is a page from the Kernel API Manual (section 9, kernel devs only, iykyk 💅) and it's literally the "hey, is there room to write yet??" function. no cap, that's the whole vibe.

🌸 NAME 🌸

af_alg_wait_for_wmem — wait for availability of writable memory

like, you're hanging out waiting for the write side of things to have space. that's her. that's the whole job. 🫶

🎀 SYNOPSIS 🎀

int af_alg_wait_for_wmem (struct sock *sk , unsigned int flags );

that's it, that's the whole signature, she's tidy 💖

🦋 ARGUMENTS 🦋

  • sk — the socket of the connection to user space. yes that socket, the one doing the talking to userspace 👑
  • flags — if MSG_DONTWAIT is set, then only report if the function would sleep. like, "don't actually block me, just tell me if you would have blocked" — a vibe check, not a nap 😴

🌈 RETURN 🌈

  • 0 when writable memory is available — slay, you're clear to write ✨
  • < 0 upon error — not slay, something went wrong 😭

⭐ SEE ALSO ⭐

all the siblings in the kernel file ./crypto/af_alg.c, and honestly the whole friend group:

okay that's the whole page, go touch grass and then go wait for writable memory bestie 🌸🦋

sign-off szn: this lil icon comes from ./crypto and it's dated October 2026 — so mark your calendars, mwah 💜🎀

📦 where this page comes from