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Remove the level in RawPageTableNode

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This commit is contained in:
Ruihan Li
2024-06-05 20:36:35 +08:00
committed by Tate, Hongliang Tian
parent 6cfccccab1
commit 4f2d537516
2 changed files with 9 additions and 18 deletions
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14
ostd/src/mm/page_table/cursor.rs
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@ -271,12 +271,16 @@ where
fn level_down(&mut self) {
debug_assert!(self.level > 1);
if let Child::PageTable(nxt_lvl_ptn) = self.cur_child() {
self.level -= 1;
self.guards[(self.level - 1) as usize] = Some(nxt_lvl_ptn.lock());
} else {
let Child::PageTable(nxt_lvl_ptn) = self.cur_child() else {
panic!("Trying to level down when it is not mapped to a page table");
}
};
let nxt_lvl_ptn_locked = nxt_lvl_ptn.lock();
self.level -= 1;
debug_assert_eq!(self.level, nxt_lvl_ptn_locked.level());
self.guards[(self.level - 1) as usize] = Some(nxt_lvl_ptn_locked);
}
fn cur_node(&self) -> &PageTableNode<E, C> {