Q_SETQUOTA(2const)                                          Q_SETQUOTA(2const)

NAME
       Q_SETQUOTA - set quota information for user or group

LIBRARY
       Standard C library (libc, -lc)

SYNOPSIS
       #include <sys/quota.h>

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

       #include <sys/quota.h>    /* Definition of Q_* constants */
       #include <sys/syscall.h>  /* Definition of SYS_* constants */
       #include <unistd.h>

       int syscall(SYS_quotactl_fd, int fd, QCMD(Q_SETQUOTA, type),
                    int id, struct dqblk *addr);

DESCRIPTION
       Set quota information for user or group id, using the information
       supplied in the dqblk(2type) structure pointed to by addr.

       The .dqb_valid field of the dqblk(2type) structure indicates which
       entries in the structure have been set by the caller.

       This operation requires privilege (CAP_SYS_ADMIN).

RETURN VALUE
       See quotactl(2).

ERRORS
       See quotactl(2).

       ERANGE The specified limits are out of the range allowed by the quota
              format.

STANDARDS
       Linux.

HISTORY
       Linux.

       This operation supersedes the Q_SETQLIM and Q_SETUSE operations in the
       previous quota interfaces.

SEE ALSO
       quotactl(2), quotactl_fd(2), dqblk(2type)

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