dqblk(2type)

💾 dqblk — the disk quota block era 💅

okay bestie, gather round, because we're talking dqblk(2type) — the disk quota block. yes, the whole manual. it's short. we're gonna make it iconic anyway. ✨

📚 LIBRARY

Standard C library (libc) — the og, the blueprint, the main character. 🫶

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✨ SYNOPSIS ✨

get into it:

#include <sys/quota.h>

struct dqblk {
     uint64_t  dqb_bhardlimit;
     uint64_t  dqb_bsoftlimit;
     uint64_t  dqb_curspace;
     uint64_t  dqb_ihardlimit;
     uint64_t  dqb_isoftlimit;
     uint64_t  dqb_curinodes;
     uint64_t  dqb_btime;
     uint64_t  dqb_itime;

     uint32_t  dqb_valid;
};

#define QIF_BLIMITS   1
#define QIF_SPACE     2
#define QIF_ILIMITS   4
#define QIF_INODES    8
#define QIF_BTIME     16
#define QIF_ITIME     32
#define QIF_LIMITS    (QIF_BLIMITS | QIF_ILIMITS)
#define QIF_USAGE     (QIF_SPACE | QIF_INODES)
#define QIF_TIMES     (QIF_BTIME | QIF_ITIME)
#define QIF_ALL       (QIF_LIMITS | QIF_USAGE | QIF_TIMES)

like… look at that bit mask. the | action? chef's kiss. 🧚

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🌸 DESCRIPTION 🌸

here's the field-by-field rundown, no gatekeeping:

• .dqb_bhardlimit, .dqb_bsoftlimit — the absolute limit and the preferred limit on disk quota blocks. hard = do not pass go. soft = the gentle "bestie…" warning. 💀
• .dqb_curspace — how much space you're currently occupying, in bytes. it's giving storage anxiety.
• .dqb_ihardlimit, .dqb_isoftlimit — the absolute and preferred limits on the number of allocated inodes. hard and soft again, but this time it's about inodes, not blocks. 👑
• .dqb_curinodes — the current number of allocated inodes. the receipts. 🧾
• .dqb_btime — the time limit for excessive disk use. so if you're out here being extra with your blocks, the clock starts. ⏰
• .dqb_itime — the time limit for excessive files. same energy, but for files specifically. like, you have too many. ma'am. 😭
• .dqb_valid — a bit mask of the QIF_* constants. it gets set to show which fields in the dqblk struct are actually valid. so it's not just vibes — it's literally telling you which of the above you can trust. 🔥

lowkey important: .dqb_valid is your vibe check. if a QIF_* bit isn't set, that field is not claiming to be valid. don't be out here reading invalid fields like they owe you something. 💅

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📏 STANDARDS

Linux. that's it. that's the standard. periodt.

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🕰️ HISTORY

Linux 2.4.22 — yeah, this one's been around a minute. vintage, but she still slays. 🎀

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👀 SEE ALSO

• Q_GETQUOTA(2const)
• Q_SETQUOTA(2const)
• nextdqblk(2type)

go read those too, bestie, we love a cross-reference. 🦋

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and that's the whole page, fr fr. this was Linux man-pages 6.20, dated 2026-06-05 — shoutout to the man-pages girlies for keeping dqblk(2type) documented so the rest of us can simply exist. you're welcome, ily, go check your quotas. 💖🌸✨