Struct statmount_t

#[repr(C)]
pub struct statmount_t {

    pub size: u32,
    pub mask: u64,
    pub sb_dev_major: u32,
    pub sb_dev_minor: u32,
    pub sb_magic: u64,
    pub sb_flags: u32,
    pub fs_type: u32,
    pub mnt_id: u64,
    pub mnt_parent_id: u64,
    pub mnt_id_old: u32,
    pub mnt_parent_id_old: u32,
    pub mnt_attr: u64,
    pub mnt_propagation: u64,
    pub mnt_peer_group: u64,
    pub mnt_master: u64,
    pub propagate_from: u64,
    pub mnt_root: u32,
    pub mnt_point: u32,
    pub str_: [u8; 1],
    /* private fields */
}

Available on crate feature dep_nc only.

Structure for getting mount/superblock/filesystem info with statmount(2).

The interface is similar to statx(2): individual fields or groups can be selected with the mask argument of statmount(). Kernel will set the mask field according to the supported fields.

If string fields are selected, then the caller needs to pass a buffer that has space after the fixed part of the structure. Nul terminated strings are copied there and offsets relative to str_ are stored in the relevant fields.

If the buffer is too small, then EOVERFLOW is returned. The actually used size is returned in size.

Fields

size: u32

Total size, including strings

mask: u64

What results were written

sb_dev_major: u32

Device ID

sb_dev_minor: u32

sb_magic: u64

…_SUPER_MAGIC

sb_flags: u32

SB_{RDONLY,SYNCHRONOUS,DIRSYNC,LAZYTIME}

fs_type: u32

[str] Filesystem type

mnt_id: u64

Unique ID of mount

mnt_parent_id: u64

Unique ID of parent (for root == mnt_id)

mnt_id_old: u32

Reused IDs used in proc/…/mountinfo

mnt_parent_id_old: u32

mnt_attr: u64

MOUNT_ATTR_…

mnt_propagation: u64

MS_{SHARED,SLAVE,PRIVATE,UNBINDABLE}

mnt_peer_group: u64

ID of shared peer group

mnt_master: u64

Mount receives propagation from this ID

propagate_from: u64

Propagation from in current namespace

mnt_root: u32

str Root of mount relative to root of fs

mnt_point: u32

str Mountpoint relative to current root

str_: [u8; 1]

Variable size part containing strings

Trait Implementations

impl Clone for statmount_t

fn clone(&self) -> statmount_t

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for statmount_t

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Default for statmount_t

fn default() -> statmount_t

Returns the “default value” for a type.