X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=ioengines.c;h=3c75fa6bfed6812e9027e832ff0d26505034b7d9;hp=f4eae04db6df5d072103191f05b187fcb6f19e80;hb=632f415c8d67a1ade18834a0f56d95c508aaa8af;hpb=8ea39c32d29428b17bfe9c806fc33f0c8adfe118

diff --git a/ioengines.c b/ioengines.c
index f4eae04d..3c75fa6b 100644
--- a/ioengines.c
+++ b/ioengines.c
@@ -107,6 +107,20 @@ static struct ioengine_ops *dlopen_ioengine(struct thread_data *td,
 	ops = dlsym(dlhandle, engine_lib);
 	if (!ops)
 		ops = dlsym(dlhandle, "ioengine");
+
+	/*
+	 * For some external engines (like C++ ones) it is not that trivial
+	 * to provide a non-static ionengine structure that we can reference.
+	 * Instead we call a method which allocates the required ioengine
+	 * structure.
+	 */
+	if (!ops) {
+		get_ioengine_t get_ioengine = dlsym(dlhandle, "get_ioengine");
+
+		if (get_ioengine)
+			get_ioengine(&ops);
+	}
+
 	if (!ops) {
 		td_vmsg(td, -1, dlerror(), "dlsym");
 		dlclose(dlhandle);
@@ -287,6 +301,13 @@ int td_io_queue(struct thread_data *td, struct io_u *io_u)
 
 	unlock_file(td, io_u->file);
 
+	/*
+	 * If an error was seen and the io engine didn't propagate it
+	 * back to 'td', do so.
+	 */
+	if (io_u->error && !td->error)
+		td_verror(td, io_u->error, "td_io_queue");
+
 	/*
 	 * Add warning for O_DIRECT so that users have an easier time
 	 * spotting potentially bad alignment. If this triggers for the first
@@ -475,7 +496,9 @@ int td_io_close_file(struct thread_data *td, struct fio_file *f)
 	fio_file_set_closing(f);
 
 	disk_util_dec(f->du);
-	unlock_file_all(td, f);
+
+	if (td->o.file_lock_mode != FILE_LOCK_NONE)
+		unlock_file_all(td, f);
 
 	return put_file(td, f);
 }