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Add Ext2 fs and basic bio layer

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This commit is contained in:
LI Qing
2023-09-18 11:47:17 +08:00
committed by Tate, Hongliang Tian
parent 1616f2d32c
commit 9473889c6b
51 changed files with 5346 additions and 427 deletions
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10
framework/aster-frame/src/vm/frame.rs
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@ -170,7 +170,7 @@ impl<'a> Iterator for VmFrameVecIter<'a> {
}
bitflags::bitflags! {
pub(crate) struct VmFrameFlags : usize{
pub(crate) struct VmFrameFlags : usize {
const NEED_DEALLOC = 1 << 63;
}
}
@ -543,7 +543,7 @@ impl<'a> VmReader<'a> {
/// Limits the length of remaining data.
///
/// This method ensures the postcondition of `self.remain() <= max_remain`.
pub const fn limit(&mut self, max_remain: usize) -> &mut Self {
pub const fn limit(mut self, max_remain: usize) -> Self {
if max_remain < self.remain() {
// Safety: the new end is less than the old end.
unsafe { self.end = self.cursor.add(max_remain) };
@ -557,7 +557,7 @@ impl<'a> VmReader<'a> {
/// # Panic
///
/// If `nbytes` is greater than `self.remain()`, then the method panics.
pub fn skip(&mut self, nbytes: usize) -> &mut Self {
pub fn skip(mut self, nbytes: usize) -> Self {
assert!(nbytes <= self.remain());
// Safety: the new cursor is less than or equal to the end.
@ -653,7 +653,7 @@ impl<'a> VmWriter<'a> {
/// Limits the length of available space.
///
/// This method ensures the postcondition of `self.avail() <= max_avail`.
pub const fn limit(&mut self, max_avail: usize) -> &mut Self {
pub const fn limit(mut self, max_avail: usize) -> Self {
if max_avail < self.avail() {
// Safety: the new end is less than the old end.
unsafe { self.end = self.cursor.add(max_avail) };
@ -667,7 +667,7 @@ impl<'a> VmWriter<'a> {
/// # Panic
///
/// If `nbytes` is greater than `self.avail()`, then the method panics.
pub fn skip(&mut self, nbytes: usize) -> &mut Self {
pub fn skip(mut self, nbytes: usize) -> Self {
assert!(nbytes <= self.avail());
// Safety: the new cursor is less than or equal to the end.