Struct ChunkEntry 

pub struct ChunkEntry {
    pub devid: u64,
    pub physical_start: u64,
    pub logical_start: u64,
    pub length: u64,
    pub flags: BlockGroupFlags,
    pub used: u64,
}

One physical chunk stripe as seen in the chunk tree, with usage data from the extent tree.

For striped profiles (RAID0, RAID10, …) each logical chunk maps to multiple stripes on different devices; each stripe yields one ChunkEntry. For non-striped profiles (single, DUP) there is one ChunkEntry per chunk.

Fields

devid: u64

btrfs device ID that holds this stripe.

physical_start: u64

Physical byte offset of this stripe on the device.

logical_start: u64

Logical byte offset of the chunk within the filesystem address space.

length: u64

Logical length of the chunk in bytes (shared across all stripes of the same chunk).

flags: BlockGroupFlags

Combined block-group type and profile flags.

used: u64

Bytes currently used within this chunk, as reported by the extent tree. 0 if the block-group item could not be read.

Trait Implementations

impl Clone for ChunkEntry

fn clone(&self) -> ChunkEntry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ChunkEntry

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

Formats the value using the given formatter.

impl PartialEq for ChunkEntry

fn eq(&self, other: &ChunkEntry) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for ChunkEntry

impl StructuralPartialEq for ChunkEntry