From 8eb20827c273df183986f95fc13cad8b28ea8ae6 Mon Sep 17 00:00:00 2001
From: rtm <rtm>
Date: Mon, 20 Oct 2008 18:05:48 +0000
Subject: [PATCH] Explain why itrunc() is OK w.r.t. crashes.

---
 fs.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs.c b/fs.c
index 70c7ec1..91533d1 100644
--- a/fs.c
+++ b/fs.c
@@ -359,6 +359,8 @@ bmap(struct inode *ip, uint bn, int alloc)
 }
 
 // Truncate inode (discard contents).
+// Only called after the last dirent referring
+// to this inode has been erased on disk.
 static void
 itrunc(struct inode *ip)
 {