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[MEMORY] Process memory management

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This commit is contained in:
Thomas Lovén
2016-12-19 12:06:24 +01:00
parent ba2ecd725f
commit 0101440894
4 changed files with 154 additions and 10 deletions
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10
kernel/proc/process.c
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@@ -12,7 +12,6 @@ process_t *process_spawn(process_t *parent)
process_t *proc = kcalloc(1, sizeof(process_t));
proc->pid = pid++;
proc->parent = parent;
proc->P4 = vmm_new_P4();
proc->state = PROC_STATE_READY;
LIST_INIT(proc, children);
@@ -23,7 +22,10 @@ process_t *process_spawn(process_t *parent)
{
spin_lock(&parent->lock);
LIST_APPEND(parent->children, proc, siblings);
proc->mmap = procmm_new_map(proc, parent->mmap);
spin_unlock(&parent->lock);
} else {
proc->mmap = procmm_new_map(proc, 0);
}
if(proc->pid == 1)
@@ -55,7 +57,7 @@ void switch_process(process_t *proc)
if(proc)
{
proc->state = PROC_STATE_RUNNING;
vmm_set_P4(proc->P4);
vmm_set_P4(proc->mmap->P4);
}
else
{
@@ -91,8 +93,8 @@ void process_free(process_t *proc)
free_thread(th);
}
LIST_REMOVE(proc->parent->children, proc, siblings);
// Free page directory
vmm_free_P4(proc->P4);
// Free memory mappings
procmm_free_map(proc);
// Free process structure
kfree(proc);
}