#endif
}
+static int journal_file_empty(int dir_fd, const char *name) {
+ int r;
+ le64_t n_entries;
+ _cleanup_close_ int fd;
+
+ fd = openat(dir_fd, name, O_RDONLY|O_CLOEXEC|O_NOFOLLOW|O_NONBLOCK);
+ if (fd < 0)
+ return -errno;
+
+ if (lseek(fd, offsetof(Header, n_entries), SEEK_SET) < 0)
+ return -errno;
+
+ r = read(fd, &n_entries, sizeof(n_entries));
+ if (r != sizeof(n_entries))
+ return r == 0 ? -EINVAL : -errno;
+
+ return le64toh(n_entries) == 0;
+}
+
int journal_directory_vacuum(
const char *directory,
uint64_t max_use,
struct vacuum_info *list = NULL;
unsigned n_list = 0, i;
size_t n_allocated = 0;
- uint64_t sum = 0;
+ uint64_t sum = 0, freed = 0;
usec_t retention_limit = 0;
assert(directory);
/* We do not vacuum active files or unknown files! */
continue;
- patch_realtime(directory, de->d_name, &st, &realtime);
+ if (journal_file_empty(dirfd(d), p)) {
+ /* Always vacuum empty non-online files. */
+
+ uint64_t size = 512UL * (uint64_t) st.st_blocks;
+
+ if (unlinkat(dirfd(d), p, 0) >= 0) {
+ log_info("Deleted empty journal %s/%s (%"PRIu64" bytes).",
+ directory, p, size);
+ freed += size;
+ } else if (errno != ENOENT)
+ log_warning("Failed to delete %s/%s: %m", directory, p);
+
+ free(p);
+
+ continue;
+ }
+
+ patch_realtime(directory, p, &st, &realtime);
GREEDY_REALLOC(list, n_allocated, n_list + 1);
n_list ++;
}
- if (n_list > 0)
- qsort(list, n_list, sizeof(struct vacuum_info), vacuum_compare);
+ qsort_safe(list, n_list, sizeof(struct vacuum_info), vacuum_compare);
for (i = 0; i < n_list; i++) {
struct statvfs ss;
break;
if (unlinkat(dirfd(d), list[i].filename, 0) >= 0) {
- log_debug("Deleted archived journal %s/%s.", directory, list[i].filename);
+ log_debug("Deleted archived journal %s/%s (%"PRIu64" bytes).",
+ directory, list[i].filename, list[i].usage);
+ freed += list[i].usage;
if (list[i].usage < sum)
sum -= list[i].usage;
free(list[i].filename);
free(list);
+ log_info("Vacuuming done, freed %"PRIu64" bytes", freed);
+
return r;
}