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Add VmSegment and rewrite the vm allocation code with VmAllocOptions

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This commit is contained in:
LI Qing
2023-10-30 15:37:59 +08:00
committed by Tate, Hongliang Tian
parent b0b25f9282
commit 4c72f5b7fa
12 changed files with 447 additions and 210 deletions
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13
services/libs/jinux-std/src/vm/vmo/mod.rs
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@ -153,10 +153,7 @@ impl VmoInner {
return Ok(());
}
let frame = match &self.pager {
None => {
let vm_alloc_option = VmAllocOptions::new(1);
VmFrameVec::allocate(&vm_alloc_option)?.pop().unwrap()
}
None => VmAllocOptions::new(1).alloc_single()?,
Some(pager) => pager.commit_page(offset)?,
};
self.insert_frame(page_idx, frame);
@ -205,8 +202,7 @@ impl VmoInner {
if page_idx >= inherited_frames.len() {
if self.is_cow {
let options = VmAllocOptions::new(1);
return Ok(VmFrameVec::allocate(&options)?.pop().unwrap());
return Ok(VmAllocOptions::new(1).alloc_single()?);
}
return_errno_with_message!(Errno::EINVAL, "the page is not inherited from parent");
}
@ -217,10 +213,7 @@ impl VmoInner {
return Ok(inherited_frame);
}
let frame = {
let options = VmAllocOptions::new(1);
VmFrameVec::allocate(&options)?.pop().unwrap()
};
let frame = VmAllocOptions::new(1).alloc_single()?;
frame.copy_from_frame(&inherited_frame);
Ok(frame)
}