From bc943c230960c414fd43b93317c3825f1a99c611 Mon Sep 17 00:00:00 2001 From: Robert Morris Date: Thu, 5 Nov 2020 07:32:10 -0500 Subject: don't over-lock in exit() --- kernel/proc.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'kernel/proc.h') diff --git a/kernel/proc.h b/kernel/proc.h index e86bde1..8e90008 100644 --- a/kernel/proc.h +++ b/kernel/proc.h @@ -88,12 +88,14 @@ struct proc { // p->lock must be held when using these: enum procstate state; // Process state - struct proc *parent; // Parent process void *chan; // If non-zero, sleeping on chan int killed; // If non-zero, have been killed int xstate; // Exit status to be returned to parent's wait int pid; // Process ID + // proc_tree_lock must be held when using this: + struct proc *parent; // Parent process + // these are private to the process, so p->lock need not be held. uint64 kstack; // Virtual address of kernel stack uint64 sz; // Size of process memory (bytes) -- cgit v1.2.3