From 0ed2f796d7723af8321f35d4ef5e6781ea41e36d Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Thu, 18 Aug 2022 14:11:31 +0200
Subject: syscall/fork: FORK_SHAREMEM for primitive "threads"

---
 src/kernel/proc.h | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/kernel/proc.h')

diff --git a/src/kernel/proc.h b/src/kernel/proc.h
index 27327c4..e7946b2 100644
--- a/src/kernel/proc.h
+++ b/src/kernel/proc.h
@@ -20,6 +20,9 @@ enum process_state {
 
 struct process {
 	struct pagedir *pages;
+	/* if NULL, refcount == 1. kmalloc'd */
+	uint64_t *pages_refcount;
+
 	struct registers regs;
 	struct process *sibling, *child, *parent;
 
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