journal: don't write tag objects if nothing has been written since the last time

2 files changed, 6 insertions, 7 deletions

diff --git a/src/journal/journal-authenticate.c b/src/journal/journal-authenticate.c
index ae64d3c8e0..9853edb58c 100644
--- a/src/journal/journal-authenticate.c
+++ b/src/journal/journal-authenticate.c
@@ -51,8 +51,6 @@ int journal_file_append_tag(JournalFile *f) {
         if (!f->hmac_running)
                 return 0;
 
-        log_debug("Writing tag for epoch %llu\n", (unsigned long long) FSPRG_GetEpoch(f->fsprg_state));
-
         assert(f->hmac);
 
         r = journal_file_append_object(f, OBJECT_TAG, sizeof(struct TagObject), &o, &p);
@@ -62,6 +60,10 @@ int journal_file_append_tag(JournalFile *f) {
         o->tag.seqnum = htole64(journal_file_tag_seqnum(f));
         o->tag.epoch = htole64(FSPRG_GetEpoch(f->fsprg_state));
 
+        log_debug("Writing tag %llu for epoch %llu\n",
+                  (unsigned long long) le64toh(o->tag.seqnum),
+                  (unsigned long long) FSPRG_GetEpoch(f->fsprg_state));
+
         /* Add the tag object itself, so that we can protect its
          * header. This will exclude the actual hash value in it */
         r = journal_file_hmac_put_object(f, OBJECT_TAG, p);
@@ -221,10 +223,6 @@ int journal_file_maybe_append_tag(JournalFile *f, uint64_t realtime) {
         if (r < 0)
                 return r;
 
-        r = journal_file_hmac_start(f);
-        if (r < 0)
-                return r;
-
         return 0;
 }
 
diff --git a/src/journal/journal-verify.c b/src/journal/journal-verify.c
index 8eefb841b2..9907c5fe26 100644
--- a/src/journal/journal-verify.c
+++ b/src/journal/journal-verify.c
@@ -35,7 +35,6 @@
 
 /* FIXME:
  *
- * - write tag only if non-tag objects have been written
  * - write bit mucking test
  * - tag timestamps should be between entry timestamps
  * - output validated time ranges
@@ -857,6 +856,8 @@ int journal_file_verify(JournalFile *f, const char *key) {
                                 goto fail;
                         }
 
+                        log_debug("Checking tag %llu..", (unsigned long long) le64toh(o->tag.seqnum));
+
                         if (le64toh(o->tag.seqnum) != n_tags + 1) {
                                 log_error("Tag sequence number out of synchronization at %llu", (unsigned long long) p);
                                 r = -EBADMSG;