From b8e2be5557287a00905aa30f78eff42519b164d5 Mon Sep 17 00:00:00 2001
From: Nick Mathewson <nickm@torproject.org>
Date: Tue, 7 Oct 2014 09:34:28 -0400
Subject: [PATCH] Don't reset the download failure status of any object marked
 as impossible

---
 src/or/directory.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/or/directory.c b/src/or/directory.c
index 1aaa75ccee..8e75bfdeeb 100644
--- a/src/or/directory.c
+++ b/src/or/directory.c
@@ -3442,6 +3442,9 @@ download_status_increment_failure(download_status_t *dls, int status_code,
 void
 download_status_reset(download_status_t *dls)
 {
+  if (dls->n_download_failures == IMPOSSIBLE_TO_DOWNLOAD)
+    return; /* Don't reset this. */
+
   const smartlist_t *schedule = find_dl_schedule_and_len(
                           dls, get_options()->DirPort_set);