fs_disk_quota(2type)

💖 fs_disk_quota — bestie edition 💖

okay so this is fs_disk_quota(2type) from the Linux man pages, section 2type (yes it's a type page, not a function page, she's different like that ✨). Buckle up, we're talking quota structs.

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🌸 NAME 🌸

fs_disk_quota — filesystem disk quota. literally the whole vibe.

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🎀 LIBRARY 🎀

Standard C library (libc). the classic. the blueprint. 🫶

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✨ SYNOPSIS ✨

#include <xfs/xqm.h>

#define FS_DQUOT_VERSION  1  // fs_disk_quota.d_version

#define XFS_USER_QUOTA    (1<<0)  // User quota type
#define XFS_PROJ_QUOTA    (1<<1)  // Project quota type
#define XFS_GROUP_QUOTA   (1<<2)  // Group quota type

struct fs_disk_quota {
     int8_t    d_version;
     int8_t    d_flags;
     uint16_t  d_fieldmask;
     uint32_t  d_id;
     uint64_t  d_blk_hardlimit;
     uint64_t  d_blk_softlimit;
     uint64_t  d_ino_hardlimit;
     uint64_t  d_ino_softlimit;
     uint64_t  d_bcount;
     uint64_t  d_icount;
     int32_t   d_itimer;
     int32_t   d_btimer;
     uint16_t  d_iwarns;
     uint16_t  d_bwarns;
     int32_t   d_padding2;
     uint64_t  d_rtb_hardlimit;
     uint64_t  d_rtb_softlimit;
     uint64_t  d_rtbcount;
     int32_t   d_rtbtimer;
     uint16_t  d_rtbwarns;
     int16_t   d_padding3;
     char      d_padding4[8];
};

look at her. so structured. so organized. the main character energy of structs fr fr 👑

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💅 DESCRIPTION 💅

first things first, the tea: all the blk units are in BBs (Basic Blocks) of 512 bytes. no cap. don't forget it or your numbers are giving nonsense.

okay now field by field, bestie, we're going through EVERY single one:

• .d_version — the version of this structure. (that's the FS_DQUOT_VERSION 1 energy right there.)
• .d_flags — XFS_{USER,PROJ,GROUP}_QUOTA. pick your fighter: user, project, or group.
• .d_fieldmask — the field specifier. it says which fields we're actually talking about. iykyk.
• .d_id — the User, project, or group ID. whoever this quota belongs to. 🪪
• .d_blk_hardlimit — the absolute limit on disk blocks. hard limit means hard limit, no wiggle room, periodt.
• .d_blk_softlimit — the preferred limit on disk blocks. soft, gentle, a suggestion she'd really like you to respect. 🌸
• .d_ino_hardlimit — maximum # of allocated inodes.
• .d_ino_softlimit — preferred inode limit. again: soft.
• .d_bcount — # of disk blocks owned by the user.
• .d_icount — # of inodes owned by the user.
• .d_itimer — zero if within inode limits; if not, we refuse service. 😭 like okay wow, cold.
• .d_btimer — similar to above; for disk blocks.
• .d_iwarns — # of warnings issued with respect to # of inodes.
• .d_bwarns — # of warnings issued with respect to disk blocks.
• .d_padding2 — padding; reserved for future use. she's just holding space rn, don't touch. 🫶
• .d_rtb_hardlimit — absolute limit on realtime (RT) disk blocks.
• .d_rtb_softlimit — preferred limit on RT disk blocks.
• .d_rtbcount — # of realtime blocks owned.
• .d_rtbtimer — similar to above; for RT disk blocks.
• .d_rtbwarns — # of warnings issued with respect to RT disk blocks.
• .d_padding3 — padding; reserved for future use.
• .d_padding4[8] — yet more padding. girl's got ✨ layers ✨ (and she's keeping the future's options open, iconic).

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🌈 STANDARDS 🌈

Linux. that's it, that's the standard. 🇱🇮🇳🇺🇽

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🦋 HISTORY 🦋

Linux. (yes literally the same answer, she's consistent 💀)

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👑 SEE ALSO 👑

• Q_XGETQUOTA(2const)
• Q_XGETNEXTQUOTA(2const)
• Q_XSETQLIM(2const)

go read those next, they're the friend group 💜

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and that's the page bestie!! 🎀 this lil number lives in Linux man-pages 6.20, dated 2026-06-05 — so you know it's fresh, slay, go check your quotas, mwah 💖✨