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block: Implement DiskSize trait for RawFileDiskSync

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Add disk_file::DiskSize trait implementation for
RawFileDiskSync using BlockError and BlockResult. Uses
metadata().len() instead of seek(SeekFrom::End(0)), taking
&self instead of &mut self.

Add BlockError, BlockErrorKind, BlockResult, and disk_file
imports needed by this and subsequent trait impls.

Signed-off-by: Muminul Islam <muislam@microsoft.com>
This commit is contained in:
Muminul Islam
2026-03-24 17:34:57 -07:00
committed by Bo Chen
parent 98fedac77f
commit 00a355d273
1 changed files with 10 additions and 1 deletions
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11
block/src/raw_sync.rs
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@@ -13,7 +13,8 @@ use vmm_sys_util::eventfd::EventFd;
use crate::async_io::{
AsyncIo, AsyncIoError, AsyncIoResult, BorrowedDiskFd, DiskFile, DiskFileError, DiskFileResult,
};
use crate::{DiskTopology, SECTOR_SIZE, probe_sparse_support, query_device_size};
use crate::error::{BlockError, BlockErrorKind, BlockResult};
use crate::{DiskTopology, SECTOR_SIZE, disk_file, probe_sparse_support, query_device_size};
#[derive(Debug)]
pub struct RawFileDiskSync {
@@ -64,6 +65,14 @@ impl DiskFile for RawFileDiskSync {
}
}
impl disk_file::DiskSize for RawFileDiskSync {
fn logical_size(&self) -> BlockResult<u64> {
query_device_size(&self.file)
.map(|(logical_size, _)| logical_size)
.map_err(|e| BlockError::new(BlockErrorKind::Io, DiskFileError::Size(e)))
}
}
pub struct RawFileSync {
fd: RawFd,
eventfd: EventFd,