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Use HashMap instead of BTreeMap where possible

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This shrinks the kernel from 905840 bytes to 862408 bytes.
This commit is contained in:
bjorn3
2023-12-12 22:23:16 +01:00
parent 78beae5c92
commit 2d065083df
28 changed files with 117 additions and 57 deletions
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src/arch/x86/idt.rs
+3 -3
View File
@@ -3,7 +3,7 @@ use core::sync::atomic::{AtomicU32, Ordering};
use core::mem;
use alloc::boxed::Box;
use alloc::collections::BTreeMap;
use hashbrown::HashMap;
use x86::segmentation::Descriptor as X86IdtEntry;
use x86::dtables::{self, DescriptorTablePointer};
@@ -68,7 +68,7 @@ impl Idt {
static mut INIT_BSP_IDT: Idt = Idt::new();
// TODO: VecMap?
pub static IDTS: RwLock<Option<BTreeMap<LogicalCpuId, &'static mut Idt>>> = RwLock::new(None);
pub static IDTS: RwLock<Option<HashMap<LogicalCpuId, &'static mut Idt>>> = RwLock::new(None);
#[inline]
pub fn is_reserved(cpu_id: LogicalCpuId, index: u8) -> bool {
@@ -128,7 +128,7 @@ const fn new_idt_reservations() -> [AtomicU32; 8] {
/// Initialize the IDT for a
pub unsafe fn init_paging_post_heap(is_bsp: bool, cpu_id: LogicalCpuId) {
let mut idts_guard = IDTS.write();
let idts_btree = idts_guard.get_or_insert_with(BTreeMap::new);
let idts_btree = idts_guard.get_or_insert_with(HashMap::new);
if is_bsp {
idts_btree.insert(cpu_id, &mut INIT_BSP_IDT);
src/arch/x86_64/idt.rs
+3 -3
View File
@@ -3,7 +3,7 @@ use core::sync::atomic::{AtomicU64, Ordering};
use core::mem;
use alloc::boxed::Box;
use alloc::collections::BTreeMap;
use hashbrown::HashMap;
use x86::segmentation::Descriptor as X86IdtEntry;
use x86::dtables::{self, DescriptorTablePointer};
@@ -69,7 +69,7 @@ impl Idt {
static mut INIT_BSP_IDT: Idt = Idt::new();
// TODO: VecMap?
pub static IDTS: RwLock<Option<BTreeMap<LogicalCpuId, &'static mut Idt>>> = RwLock::new(None);
pub static IDTS: RwLock<Option<HashMap<LogicalCpuId, &'static mut Idt>>> = RwLock::new(None);
#[inline]
pub fn is_reserved(cpu_id: LogicalCpuId, index: u8) -> bool {
@@ -113,7 +113,7 @@ const fn new_idt_reservations() -> [AtomicU64; 4] {
/// Initialize the IDT for a
pub unsafe fn init_paging_post_heap(is_bsp: bool, cpu_id: LogicalCpuId) {
let mut idts_guard = IDTS.write();
let idts_btree = idts_guard.get_or_insert_with(BTreeMap::new);
let idts_btree = idts_guard.get_or_insert_with(HashMap::new);
if is_bsp {
idts_btree.insert(cpu_id, &mut INIT_BSP_IDT);