.\" Copyright 1996, Andries E. Brouwer <aeb@cwi.nl>
.\" Copyright 2010, Jan Kara <jack@suse.cz>
.\" Copyright 2010, Michael Kerrisk <mtk.manpages@gmail.com>
.\" Copyright, the authors of the Linux man-pages project
.\"
.\" SPDX-License-Identifier: Linux-man-pages-copyleft
.\"
.TH Q_XQUOTARM 2const 2026-06-05 "Linux man-pages 6.19"
.SH NAME
Q_XQUOTARM
\-
free disk space taken by disk quotas
.SH LIBRARY
Standard C library
.RI ( libc ,\~ \-lc )
.SH SYNOPSIS
.nf
.BR "#include <xfs/xqm.h>" "      /* See quotactl(2) */"
.B #include <sys/quota.h>
.P
.BI "int\~quotactl(QCMD(Q_XQUOTARM, " type "), const\~char\~*_Nullable\~" special ", 0,"
.BI "             caddr_t\~" addr );
.P
.BR "#include <xfs/xqm.h>" "      /* See quotactl_fd(2) */"
.BR "#include <sys/syscall.h>" "  /* Definition of " SYS_* " constants */"
.B #include <unistd.h>
.P
.BI "int\~syscall(SYS_quotactl_fd, int\~" fd ", QCMD(Q_XQUOTARM, " type "), 0,"
.BI "            unsigned\~int\~*" addr );
.fi
.SH DESCRIPTION
Free the disk space taken by disk quotas.
.P
The
.I addr
argument should be a pointer to an
.I "unsigned int"
value containing flags
(the same as in
.I .d_flags
field of the
.BR fs_disk_quota (2type)
structure)
which identify what types of quota
should be removed.
.P
Quotas must have already been turned off.
.SH RETURN VALUE
See
.BR quotactl (2).
.SH ERRORS
See
.BR quotactl (2).
.TP
.BR EINVAL " (since Linux 5.5)"
.\" 3dd4d40b420846dd35869ccc8f8627feef2cff32
.I addr
does not point to valid quota types.
.SH STANDARDS
Linux.
.SH HISTORY
Buggy until Linux 3.16.
.\" 9da93f9b7cdf8ab28da6b364cdc1fafc8670b4dc
.SH CAVEATS
The quota
.I type
argument is ignored,
but should remain valid
in order to pass preliminary quotactl syscall handler checks.
.SH SEE ALSO
.BR quotactl (2),
.BR quotactl_fd (2),
.BR fs_disk_quota (2type)