lfsr: ensure we don't generate an offset + buflen that exceeds the max size

[fio.git] / ioengines.c

diff --git a/ioengines.c b/ioengines.c
index b43374e7afebb03a63d059fd5f09a36d582e67ba..a87175a23aa74999999ec18a64edf823e84aff90 100644 (file)
--- a/ioengines.c
+++ b/ioengines.c
@@ -104,7 +104,9 @@ static struct ioengine_ops *dlopen_ioengine(struct thread_data *td,
         * Unlike the included modules, external engines should have a
         * non-static ioengine structure that we can reference.
         */
-       ops = dlsym(dlhandle, "ioengine");
+       ops = dlsym(dlhandle, engine_lib);
+       if (!ops)
+               ops = dlsym(dlhandle, "ioengine");
        if (!ops) {
                td_vmsg(td, -1, dlerror(), "dlsym");
                dlclose(dlhandle);
@@ -501,7 +503,7 @@ int do_io_u_sync(struct thread_data *td, struct io_u *io_u)
        if (io_u->ddir == DDIR_SYNC) {
                ret = fsync(io_u->file->fd);
        } else if (io_u->ddir == DDIR_DATASYNC) {
-#ifdef FIO_HAVE_FDATASYNC
+#ifdef CONFIG_FDATASYNC
                ret = fdatasync(io_u->file->fd);
 #else
                ret = io_u->xfer_buflen;