Struct btrfs_diskformat::DevItem [−][src]
Represents a complete block device.
Fields
devid: U64<LE>
The internal btrfs device ID.
This should match the devid found in the filesystem’s list of devices.
total_bytes: U64<LE>
The size of the device.
bytes_used: U64<LE>
The bytes in use by the filesystem on the device.
io_align: U32<LE>
The optimal I/O alignment for this device.
io_width: U32<LE>
The optimal I/O width for this device.
sector_size: U32<LE>
The minimum I/O size for this device.
type: U64<LE>
The type and info for this device.
generation: U64<LE>
The expected generation for this device.
start_offset: U64<LE>
The starting byte of this partition on the device, to allow for stripe alignment.
dev_group: U32<LE>
Grouping information for allocation decisions.
seek_speed: u8
The seek speed of the device on a scale from 0 to 100, where 100 is the fastest.
bandwith: u8
The bandwidth of the device on a scale from 0 to 100, where 100 is the fastest.
uuid: UuidBytes
The generated UUID for this device.
fsid: UuidBytes
The UUID of the filesystem that owns this device.
Trait Implementations
impl AsBytes for DevItem
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fn only_derive_is_allowed_to_implement_this_trait() where
Self: Sized,
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Self: Sized,
pub fn as_bytes(&self) -> &[u8]
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pub fn as_bytes_mut(&mut self) -> &mut [u8] where
Self: FromBytes,
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Self: FromBytes,
impl Clone for DevItem
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impl Copy for DevItem
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impl Debug for DevItem
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impl FromBytes for DevItem
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fn only_derive_is_allowed_to_implement_this_trait() where
Self: Sized,
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Self: Sized,
impl Unaligned for DevItem
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fn only_derive_is_allowed_to_implement_this_trait() where
Self: Sized,
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Self: Sized,
Auto Trait Implementations
impl RefUnwindSafe for DevItem
impl Send for DevItem
impl Sync for DevItem
impl Unpin for DevItem
impl UnwindSafe for DevItem
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,