Q_XQUOTARM(2const) — Linux manual page

Q_XQUOTARM(2const)                                     Q_XQUOTARM(2const)

NAME         top

       Q_XQUOTARM - free disk space taken by disk quotas

LIBRARY         top

       Standard C library (libc, -lc)

SYNOPSIS         top

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

       int quotactl(QCMD(Q_XQUOTARM, 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_XQUOTARM, type), 0,
                   unsigned int *addr);

DESCRIPTION         top

       Free the disk space taken by disk quotas.

       The addr argument should be a pointer to an unsigned int value
       containing flags (the same as in .d_flags field of the
       fs_disk_quota(2type) structure) which identify what types of quota
       should be removed.

       Quotas must have already been turned off.

RETURN VALUE         top

       See quotactl(2).

ERRORS         top

       See quotactl(2).

       EINVAL (since Linux 5.5)
              addr does not point to valid quota types.

STANDARDS         top

       Linux.

HISTORY         top

       Buggy until Linux 3.16.

CAVEATS         top

       The quota type argument is ignored, but should remain valid in
       order to pass preliminary quotactl syscall handler checks.

SEE ALSO         top

       quotactl(2), quotactl_fd(2), fs_disk_quota(2type)

COLOPHON         top

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

Pages that refer to this page: quotactl(2)

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