[PATCH] Add skeleton external io engine

[fio.git] / ioengines.c

diff --git a/ioengines.c b/ioengines.c
index a71357c67ddce9002b97f5d1afa4749a1e49100d..56a718c6cfea2f9cd26738560d76036d5a8385a1 100644 (file)
--- a/ioengines.c
+++ b/ioengines.c
@@ -98,6 +98,10 @@ static struct ioengine_ops *dlopen_ioengine(struct thread_data *td,
                return NULL;
        }
 
+       /*
+        * Unlike the included modules, external engines should have a
+        * non-static ioengine structure that we can reference.
+        */
        ops = dlsym(dlhandle, "ioengine");
        if (!ops) {
                td_vmsg(td, -1, dlerror());