From 6a824d3a2184c6f9929dabf55930bd48fcb54323 Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Wed, 18 Aug 2021 18:50:18 +0200
Subject: fork(): store information about the parent too

---
 src/kernel/proc.c | 4 +++-
 src/kernel/proc.h | 1 +
 2 files changed, 4 insertions(+), 1 deletion(-)

(limited to 'src/kernel')

diff --git a/src/kernel/proc.c b/src/kernel/proc.c
index 02826d8..eea651f 100644
--- a/src/kernel/proc.c
+++ b/src/kernel/proc.c
@@ -12,7 +12,8 @@ struct process *process_seed() {
 	proc->pages = pagedir_new();
 	proc->state = PS_RUNNING;
 	proc->sibling = NULL;
-	proc->child = NULL;
+	proc->child   = NULL;
+	proc->parent  = NULL;
 
 	process_first = proc;
 
@@ -37,6 +38,7 @@ struct process *process_fork(struct process *parent) {
 	child->pages = pagedir_copy(parent->pages);
 	child->sibling = parent->child;
 	child->child   = NULL;
+	child->parent  = parent;
 	parent->child  = child;
 
 	return child;
diff --git a/src/kernel/proc.h b/src/kernel/proc.h
index 05ab66a..f50ab33 100644
--- a/src/kernel/proc.h
+++ b/src/kernel/proc.h
@@ -14,6 +14,7 @@ struct process {
 
 	struct process *sibling;
 	struct process *child;
+	struct process *parent;
 };
 
 extern struct process *process_first;
-- 
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