man7.org > Linux > man-pages

Linux/UNIX system programming training

Q_XQUOTAOFF(2const) — Linux manual page

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | STANDARDS | HISTORY | SEE ALSO | COLOPHON 

Q_XQUOTAOFF(2const)                                   Q_XQUOTAOFF(2const)

NAME         top

       Q_XQUOTAOFF - turn off 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_XQUOTAOFF, 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_XQUOTAOFF, type), 0,
                   unsigned int *addr);

DESCRIPTION         top

       Turn off quotas for an XFS filesystem.

       As with Q_XQUOTAON(2const), XFS filesystems expect a pointer to an
       unsigned int that specifies whether quota accounting and/or limit
       enforcement need to be turned off (using the same flags as for
       Q_XQUOTAON(2const)).

       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_XQUOTAON(2const)

COLOPHON         top

       This page is part of the man-pages (Linux kernel and C library
       user-space interface documentation) project.  Information about
       the project can be found at 
       ⟨https://www.kernel.org/doc/man-pages/⟩.  If you have a bug report
       for this manual page, see
       ⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.
       This page was obtained from the tarball man-pages-6.19.tar.gz
       fetched from
       ⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on
       2026-09-09.  If you discover any rendering problems in this HTML
       version of the page, or you believe there is a better or more up-
       to-date source for the page, or you have corrections or
       improvements to the information in this COLOPHON (which is not
       part of the original manual page), send a mail to
       man-pages@man7.org

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

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

HTML rendering created 2026-09-09 by Michael Kerrisk, author of The Linux Programming Interface.

For details of in-depth Linux/UNIX system programming training courses that I teach, look here.

Hosting by jambit GmbH.

Cover of TLPI