Function flush_loose_object_transaction

object-file.c:545–575

* Cleanup after batch-mode fsync_object_files. */

 * Cleanup after batch-mode fsync_object_files.
 */
static void flush_loose_object_transaction(struct odb_transaction_files *transaction)
{
	struct strbuf temp_path = STRBUF_INIT;
	struct tempfile *temp;

	if (!transaction->objdir)
		return;

	/*
	 * Issue a full hardware flush against a temporary file to ensure
	 * that all objects are durable before any renames occur. The code in
	 * fsync_loose_object_transaction has already issued a writeout
	 * request, but it has not flushed any writeback cache in the storage
	 * hardware or any filesystem logs. This fsync call acts as a barrier
	 * to ensure that the data in each new object file is durable before
	 * the final name is visible.
	 */
	strbuf_addf(&temp_path, "%s/bulk_fsync_XXXXXX",
		    repo_get_object_directory(transaction->base.source->odb->repo));
	temp = xmks_tempfile(temp_path.buf);
	fsync_or_die(get_tempfile_fd(temp), get_tempfile_path(temp));
	delete_tempfile(&temp);
	strbuf_release(&temp_path);

	/*
	 * Make the object files visible in the primary ODB after their data is
	 * fully durable.
	 */
	tmp_objdir_migrate(transaction->objdir);
	transaction->objdir = NULL;
}

/* Finalize a file on disk, and close it. */
static void close_loose_object(struct odb_source_loose *loose,