systemd/0001-journal-warn-when-we-fail-to-append-a-tag-to-a-journ.patch

From 9f47fe6b6a9aad001e99f1fdea78a0c54ce8ae55 Mon Sep 17 00:00:00 2001
From: Franck Bui <fbui@suse.com>
Date: Fri, 23 Sep 2016 12:12:13 +0200
Subject: [PATCH 1/1] journal: warn when we fail to append a tag to a journal

We shouldn't silently fail when appending the tag to a journal file
since FSS protection will simply be disabled in this case.

(cherry picked from commit 43cd8794839548a6f332875e8bee8bed2652bf2c)
---
 src/journal/journal-file.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/journal/journal-file.c b/src/journal/journal-file.c
index e7eecad..a9882cf 100644
--- a/src/journal/journal-file.c
+++ b/src/journal/journal-file.c
@@ -145,8 +145,13 @@ JournalFile* journal_file_close(JournalFile *f) {
 
 #ifdef HAVE_GCRYPT
         /* Write the final tag */
-        if (f->seal && f->writable)
-                journal_file_append_tag(f);
+        if (f->seal && f->writable) {
+                int r;
+
+                r = journal_file_append_tag(f);
+                if (r < 0)
+                        log_error_errno(r, "Failed to append tag when closing journal: %m");
+        }
 #endif
 
         journal_file_set_offline(f);
-- 
2.10.0