quota_send_warning(9)

🌸 quota_send_warning(9) — NAME 🌸

okay bestie, welcome to quota_send_warning(9) from the Kernel API Manual. the NAME tea is literally: quota_send_warning — Send warning to userspace about exceeded quota. that's it, that's the whole assignment 💅

✨ SYNOPSIS ✨

void quota_send_warning (struct kqid qid , dev_t dev , const char
       warntype );

exact signature, no cap. don't @ me about the spacing, it's canon 🫶

🎀 ARGUMENTS 🎀

• qid — the kernel internal quota identifier. it's the kernel's own little quota ID, periodt.
• dev — the device on which the fs is mounted, literally sb->s_dev. write it exactly like that, bestie.
• warntype — the type of the warning: QUOTA_NL_.... yes, with the ellipsis vibe, because that's what the page says 🔥

🦋 DESCRIPTION 🦋

so this helper can be used by filesystems — including those which don't use dquot — to send a message to userspace relating to quota limits. it's giving bridge between filesystem quota-limit tea and userspace, and it's here for you 😌✨

🌈 SEE ALSO 🌈

• Kernel file ./fs/quota/netlink.c — go peek, bestie, it's right there. iykyk 👑

mwah 💋 — source/version ./fs/quota, dated October 2026, manual quota_send_warning(9). periodt 🫶