Enum MountType

pub enum MountType {
    Regular,
    Bind {
        source_mount_node: Arc<MountNode>,
        source_relative_path: String,
        bind_type: BindType,
    },
    Overlay {
        lower_layers: Vec<String>,
        upper_layer: String,
        work_dir: String,
    },
}

Mount type classification for different mount strategies

This enum defines the various mount types supported by the VFS system, each with different behaviors and resource handling approaches.

Variants

Regular

Regular filesystem mount

Standard mount where the filesystem directly handles all operations at the mount point. This is the most common mount type.

Bind

Bind mount - maps one directory tree to another location

Bind mounts allow the same filesystem content to be accessible from multiple mount points. They support:

• Cross-VFS sharing for container resource sharing
• Read-only restrictions for security
• Shared propagation for namespace management

Fields

source_mount_node: Arc<MountNode>

Source mount node that provides the actual filesystem

source_relative_path: String

Relative path within the source filesystem

bind_type: BindType

Type of bind mount (read-only, read-write, shared)

Overlay

Overlay filesystem mount

Combines multiple filesystem layers into a unified view, typically used for container images and copy-on-write scenarios.

Fields

lower_layers: Vec<String>

Lower filesystem layers (read-only)

upper_layer: String

Upper layer for writes

work_dir: String

Working directory for overlay operations

Trait Implementations

impl Clone for MountType

fn clone(&self) -> MountType

Returns a copy of the value.

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

Performs copy-assignment from source.