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Protect kernel allocations

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This code is absolutely not-reentrant
This commit is contained in:
Baptiste Wicht 2016-07-03 13:24:43 +02:00
parent e66314ae96
commit 3c38ead19f
1 changed files with 5 additions and 0 deletions
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5
kernel/src/kalloc.cpp
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@ -10,6 +10,7 @@
#include "physical_allocator.hpp"
#include "paging.hpp"
#include "e820.hpp"
#include "int_lock.hpp"
#include "fs/sysfs.hpp"
@ -337,6 +338,8 @@ void kalloc::finalize(){
}
void* kalloc::k_malloc(uint64_t bytes){
direct_int_lock lock;
auto current = malloc_head->next();
//Try not to create too small blocks
@ -421,6 +424,8 @@ void* kalloc::k_malloc(uint64_t bytes){
}
void kalloc::k_free(void* block){
direct_int_lock lock;
auto free_header = reinterpret_cast<malloc_header_chunk*>(
reinterpret_cast<uintptr_t>(block) - sizeof(malloc_header_chunk));