Q_XQUOTAON(2const) — Linux manual page

Q_XQUOTAON(2const)                                     Q_XQUOTAON(2const)

NAME         top

       Q_XQUOTAON - turn on quotas for an XFS filesystem

LIBRARY         top

       Standard C library (libc, -lc)

SYNOPSIS         top

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

       int quotactl(QCMD(Q_XQUOTAON, type), const char *_Nullable special, 0,
                    caddr_t addr);

       #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_XQUOTAON, type), 0,
                   unsigned int *addr);

DESCRIPTION         top

       Turn on quotas for an XFS filesystem.

       XFS provides the ability to turn on/off quota limit enforcement
       with quota accounting.  Therefore, XFS expects addr to be a
       pointer to an unsigned int that contains a bitwise combination of
       the following flags (defined in <xfs/xqm.h>):

           XFS_QUOTA_UDQ_ACCT  /* User quota accounting */
           XFS_QUOTA_UDQ_ENFD  /* User quota limits enforcement */
           XFS_QUOTA_GDQ_ACCT  /* Group quota accounting */
           XFS_QUOTA_GDQ_ENFD  /* Group quota limits enforcement */
           XFS_QUOTA_PDQ_ACCT  /* Project quota accounting */
           XFS_QUOTA_PDQ_ENFD  /* Project quota limits enforcement */

       This operation requires privilege (CAP_SYS_ADMIN).

RETURN VALUE         top

       See quotactl(2).

ERRORS         top

       See quotactl(2).

STANDARDS         top

       Linux.

HISTORY         top

       Linux.

SEE ALSO         top

       quotactl(2), quotactl_fd(2), Q_XQUOTAOFF(2const)

COLOPHON         top

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Linux man-pages 6.19            2026-06-05             Q_XQUOTAON(2const)

Pages that refer to this page: quotactl(2),  Q_XQUOTAOFF(2const)

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