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Improve the efficiency of unmap in VmMappingInner

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Chen Chengjun
2024-04-28 16:54:15 +08:00
committed by Tate, Hongliang Tian
parent ab87f473c4
commit 0594a73ac9
1 changed files with 5 additions and 5 deletions
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10
kernel/aster-nix/src/vm/vmar/vm_mapping.rs
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@ -503,13 +503,13 @@ impl VmMappingInner {
let vmo_map_range = (range.start - map_to_addr + self.vmo_offset)
..(range.end - map_to_addr + self.vmo_offset);
let page_idx_range = get_page_idx_range(&vmo_map_range);
for page_idx in page_idx_range {
if self.mapped_pages.contains(&page_idx) {
self.unmap_one_page(vm_space, page_idx)?;
}
let original_mapped_pages = self.mapped_pages.clone();
let mapped_pages_in_range = original_mapped_pages.range(page_idx_range);
for page_idx in mapped_pages_in_range {
self.unmap_one_page(vm_space, *page_idx)?;
}
if may_destroy && *range == self.range() {
self.is_destroyed = false;
self.is_destroyed = true;
}
Ok(())
}