dqinfo(2type)                                                    dqinfo(2type)

NAME
       dqinfo - disk quota information

LIBRARY
       Standard C library (libc)

SYNOPSIS
       #include <sys/quota.h>

       struct dqinfo {
            uint64_t  dqi_bgrace;
            uint64_t  dqi_igrace;
            uint32_t  dqi_flags;
            uint32_t  dqi_valid;
       };

       /* Quota format QFMT_VFS_OLD */
       #define DQF_ROOT_SQUASH (1 << 0)

       /* Quota format QFMT_VFS_V0 / QFMT_VFS_V1 */
       #define DQF_SYS_FILE    (1 << 16)

       #define IIF_BGRACE  1
       #define IIF_IGRACE  2
       #define IIF_FLAGS   4
       #define IIF_ALL     (IIF_BGRACE | IIF_IGRACE | IIF_FLAGS)

DESCRIPTION
   struct dqinfo
       .dqi_bgrace
              Time before block soft limit becomes hard limit.

       .dqi_igrace
              Time before inode soft limit becomes hard limit.

       .dqi_flags
              Flags for quotafile (DQF_*).

       .dqi_valid
              Bit mask of IIF_* constants.  It is set to indicate which fields
              in the dqinfo structure are valid.

   DQF_*
       DQF_ROOT_SQUASH
              Root squash enabled.

       DQF_SYS_FILE
              Quota stored in a system file.

STANDARDS
       Linux.

HISTORY
       Linux 2.4.22.

       Before Linux 4.0, DQF_ROOT_SQUASH had been defined privately as
       V1_DQF_RSQUASH.

SEE ALSO
       Q_GETINFO(2const), Q_SETINFO(2const)

Linux man-pages 6.19              2026-06-05                     dqinfo(2type)