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feat(filesystem): 引入Umount系统调用 (#719)

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* feat(filesystem): 引入Umount系统调用

* 将所有ENOSYS误用更正

* 修复了一个使同一个挂载点可以挂载2个文件系统的bug

* 统一注释，增强程序稳定性，统一接口。注意：Umount时在fatfs的路径要使用大写，此受限于当前文件系统设计。
This commit is contained in:
Samuel Dai
2024-04-15 13:02:04 +08:00
committed by GitHub
parent ceeb2e943c
commit 1074eb34e7
46 changed files with 1274 additions and 463 deletions
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12
kernel/src/time/clocksource.rs
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@ -196,29 +196,29 @@ pub trait Clocksource: Send + Sync + Debug {
fn read(&self) -> CycleNum;
/// optional function to enable the clocksource
fn enable(&self) -> Result<i32, SystemError> {
return Err(SystemError::EOPNOTSUPP_OR_ENOTSUP);
return Err(SystemError::ENOSYS);
}
/// optional function to disable the clocksource
fn disable(&self) -> Result<(), SystemError> {
return Err(SystemError::EOPNOTSUPP_OR_ENOTSUP);
return Err(SystemError::ENOSYS);
}
/// vsyscall based read
fn vread(&self) -> Result<CycleNum, SystemError> {
return Err(SystemError::EOPNOTSUPP_OR_ENOTSUP);
return Err(SystemError::ENOSYS);
}
/// suspend function for the clocksource, if necessary
fn suspend(&self) -> Result<(), SystemError> {
return Err(SystemError::EOPNOTSUPP_OR_ENOTSUP);
return Err(SystemError::ENOSYS);
}
/// resume function for the clocksource, if necessary
fn resume(&self) -> Result<(), SystemError> {
return Err(SystemError::EOPNOTSUPP_OR_ENOTSUP);
return Err(SystemError::ENOSYS);
}
// 获取时钟源数据
fn clocksource_data(&self) -> ClocksourceData;
fn update_clocksource_data(&self, _data: ClocksourceData) -> Result<(), SystemError> {
return Err(SystemError::EOPNOTSUPP_OR_ENOTSUP);
return Err(SystemError::ENOSYS);
}
// 获取时钟源
fn clocksource(&self) -> Arc<dyn Clocksource>;