qid_has_mapping(9)

🎀 NAME 🎀

Hii bestie, meet qid_has_mapping from the Kernel API Manual, section 9. 💖

This one is here to report if a qid maps into a user namespace — literally that, no cap. ✨

✨ SYNOPSIS ✨

bool qid_has_mapping (struct user_namespace *ns , struct kqid qid );

💅 ARGUMENTS 💅

• ns — the user namespace you're checking, aka the one to see if a value maps into. 🫶
• qid — the kernel internal quota identifier to test, the little qid in question. 🔥

🦋 SEE ALSO 🦋

Kernel file ./include/linux/quota.h is holding the related refs, bestie: make_kqid(9), make_kqid_invalid(9), make_kqid_uid(9), make_kqid_gid(9), and make_kqid_projid(9). 🌈

Source/version and date check, periodt: ./include/linux, October 2026, and yes — qid_has_mapping(9). Mwah 💋🎀