From 3b11769c772ab667f6f7a1863f6a614a095445ad Mon Sep 17 00:00:00 2001
From: Nicolas Lacasse <nlacasse@google.com>
Date: Tue, 28 Aug 2018 15:17:32 -0700
Subject: fs: Don't bother saving negative dirents.

PiperOrigin-RevId: 210616454
Change-Id: I3f536e2b4d603e540cdd9a67c61b8ec3351f4ac3
---
 pkg/sentry/fs/dirent_state.go | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'pkg/sentry')

diff --git a/pkg/sentry/fs/dirent_state.go b/pkg/sentry/fs/dirent_state.go
index fb81e7d54..58dd01202 100644
--- a/pkg/sentry/fs/dirent_state.go
+++ b/pkg/sentry/fs/dirent_state.go
@@ -45,7 +45,13 @@ func (d *Dirent) saveChildren() map[string]*Dirent {
 		if rc := w.Get(); rc != nil {
 			// Drop the reference count obtain in w.Get()
 			rc.DecRef()
-			c[name] = rc.(*Dirent)
+
+			cd := rc.(*Dirent)
+			if cd.IsNegative() {
+				// Don't bother saving negative Dirents.
+				continue
+			}
+			c[name] = cd
 		}
 	}
 	return c
-- 
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