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block: drop unused function create_disk_file

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Signed-off-by: Wei Liu <liuwe@microsoft.com>
This commit is contained in:
Wei Liu 2024-12-20 05:17:03 +00:00 committed by Wei Liu
parent 1cdb91a40f
commit 9973d28849
1 changed files with 1 additions and 22 deletions
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23
block/src/lib.rs
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@ -59,9 +59,7 @@ use vmm_sys_util::eventfd::EventFd;
use vmm_sys_util::{aio, ioctl_io_nr, ioctl_ioc_nr};
use crate::async_io::{AsyncIo, AsyncIoError, AsyncIoResult};
use crate::fixed_vhd::FixedVhd;
use crate::qcow::{QcowFile, RawFile};
use crate::vhdx::{Vhdx, VhdxError};
use crate::vhdx::VhdxError;
const SECTOR_SHIFT: u8 = 9;
pub const SECTOR_SIZE: u64 = 0x01 << SECTOR_SHIFT;
@ -793,25 +791,6 @@ pub trait BlockBackend: Read + Write + Seek + Send + Debug {
fn size(&self) -> Result<u64, Error>;
}
/// Inspect the image file type and create an appropriate disk file to match it.
pub fn create_disk_file(mut file: File, direct_io: bool) -> Result<Box<dyn BlockBackend>, Error> {
let image_type = detect_image_type(&mut file).map_err(Error::DetectImageType)?;
Ok(match image_type {
ImageType::Qcow2 => {
Box::new(QcowFile::from(RawFile::new(file, direct_io)).map_err(Error::QcowError)?)
as Box<dyn BlockBackend>
}
ImageType::FixedVhd => {
Box::new(FixedVhd::new(file).map_err(Error::FixedVhdError)?) as Box<dyn BlockBackend>
}
ImageType::Vhdx => {
Box::new(Vhdx::new(file).map_err(Error::VhdxError)?) as Box<dyn BlockBackend>
}
ImageType::Raw => Box::new(RawFile::new(file, direct_io)) as Box<dyn BlockBackend>,
})
}
#[derive(Debug)]
pub struct DiskTopology {
pub logical_block_size: u64,