Q_XGETNEXTQUOTA(2const)

✨ Q_XGETNEXTQUOTA — bestie, let's go find the next quota ✨

okay so you know those XFS quota things? this is the const-y version, which means it's one of the magic values you shove into quotactl(2) / quotactl_fd(2). it's giving Q_XGETNEXTQUOTA(2const), and it's about getting disk quota limits for the next user or group on an XFS filesystem. 🦋

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🌸 LIBRARY 🌸

Standard C library (libc, -lc) 💖

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🎀 SYNOPSIS 🎀

first flavor — the classic quotactl(2) route:

#include <xfs/xqm.h>      /* See quotactl(2) */
#include <sys/quota.h>

int quotactl(QCMD(Q_XGETNEXTQUOTA, type), const char *_Nullable special,
             int id, caddr_t addr);

and second flavor — the fd-based quotactl_fd(2) route (yes she has range):

#include <xfs/xqm.h>      /* See quotactl_fd(2) */
#include <sys/syscall.h>  /* Definition of SYS_* constants */
#include <unistd.h>

int syscall(SYS_quotactl_fd, int fd, QCMD(Q_XGETNEXTQUOTA, type),
             int id, struct fs_disk_quota *addr);

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💅 DESCRIPTION 💅

so like. it's literally the same thing as Q_XGETQUOTA(2const), okay? same energy. but here's the twist that makes her the main character: instead of just grabbing the quota for id, she returns — in the fs_disk_quota(2type) structure that addr points to — the quota info for the next ID that is greater than or equal to id and actually has a quota set. 🔥

and here's a cute little detail — fs_disk_quota(2type) already has a q_id field, so no separate structure type is needed here. that's in contrast with Q_GETQUOTA(2const) and Q_GETNEXTQUOTA(2const), who need their own thing. iconic, honestly. 👑

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👑 RETURN VALUE 👑

See quotactl(2). that's it, that's the whole vibe. 💖

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😭 ERRORS 😭

See quotactl(2).

plus one that's just for us:

• ESRCH — there is no ID greater than or equal to id that has an active quota. like, you looked, bestie, and she's just not there. 💀

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🌈 STANDARDS 🌈

Linux. (we stay on brand 🐧)

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⭐ HISTORY ⭐

Linux 4.6 — a certified classic, fr fr.

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🫶 SEE ALSO 🫶

• quotactl(2)
• quotactl_fd(2)
• Q_XGETQUOTA(2const)
• fs_disk_quota(2type)

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okay that's the whole page, no cap. huge slay to Linux man-pages 6.20, dated 2026-06-05 — go read quotactl(2) when you're done, ily, bye 💖✨🎀🦋