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Introduce XArray and refactor the COW mechanism of Vmo

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This commit is contained in:
Chen Chengjun
2024-04-08 14:26:36 +08:00
committed by Tate, Hongliang Tian
parent 233e1fac98
commit 33c8727a13
11 changed files with 575 additions and 310 deletions
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9
kernel/aster-nix/src/vm/vmo/dyn_cap.rs
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@ -2,7 +2,7 @@
use core::ops::Range;
use aster_frame::vm::VmIo;
use aster_frame::vm::{VmFrame, VmIo};
use aster_rights::{Rights, TRights};
use super::{
@ -68,9 +68,9 @@ impl Vmo<Rights> {
}
/// commit a page at specific offset
pub fn commit_page(&self, offset: usize) -> Result<()> {
pub fn commit_page(&self, offset: usize) -> Result<VmFrame> {
self.check_rights(Rights::WRITE)?;
self.0.commit_page(offset)
self.0.commit_page(offset, false)
}
/// Commits the pages specified in the range (in bytes).
@ -84,7 +84,8 @@ impl Vmo<Rights> {
/// The method requires the Write right.
pub fn commit(&self, range: Range<usize>) -> Result<()> {
self.check_rights(Rights::WRITE)?;
self.0.commit(range)
self.0.commit(range, false)?;
Ok(())
}
/// Decommits the pages specified in the range (in bytes).