[systemd-devel] [PATCH 2/2] journal: forget file after encountering an error

[Zbigniew Jędrzejewski-Szmek]

If we encounter an inconsistency in a file, let's just
ignore it. Otherwise, after previous patch, we would try,
and fail, to use this file in every invocation of sd_journal_next
or sd_journal_previous that happens afterwards.
---
 src/journal/sd-journal.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/src/journal/sd-journal.c b/src/journal/sd-journal.c
index ef455e9..b54bc21 100644
--- a/src/journal/sd-journal.c
+++ b/src/journal/sd-journal.c
@@ -51,6 +51,8 @@
 
 #define DEFAULT_DATA_THRESHOLD (64*1024)
 
+static void remove_file_real(sd_journal *j, JournalFile *f);
+
 static bool journal_pid_changed(sd_journal *j) {
         assert(j);
 
@@ -885,6 +887,7 @@ static int real_journal_next(sd_journal *j, direction_t direction) {
                 r = next_beyond_location(j, f, direction, &o, &p);
                 if (r < 0) {
                         log_debug("Can't iterate through %s, ignoring: %s", f->path, strerror(-r));
+                        remove_file_real(j, f);
                         continue;
                 } else if (r == 0)
                         continue;
@@ -1339,7 +1342,7 @@ static int add_file(sd_journal *j, const char *prefix, const char *filename) {
 }
 
 static int remove_file(sd_journal *j, const char *prefix, const char *filename) {
-        char *path;
+        _cleanup_free_ char *path;
         JournalFile *f;
 
         assert(j);
@@ -1351,10 +1354,17 @@ static int remove_file(sd_journal *j, const char *prefix, const char *filename)
                 return -ENOMEM;
 
         f = hashmap_get(j->files, path);
-        free(path);
         if (!f)
                 return 0;
 
+        remove_file_real(j, f);
+        return 0;
+}
+
+static void remove_file_real(sd_journal *j, JournalFile *f) {
+        assert(j);
+        assert(f);
+
         hashmap_remove(j->files, f->path);
 
         log_debug("File %s removed.", f->path);
@@ -1372,8 +1382,6 @@ static int remove_file(sd_journal *j, const char *prefix, const char *filename)
         journal_file_close(f);
 
         j->current_invalidate_counter ++;
-
-        return 0;
 }
 
 static int add_directory(sd_journal *j, const char *prefix, const char *dirname) {
-- 
1.8.5.3