[PATCH 2/4] ioengine: allow several external ioengines
From: Dmitry Monakhov <hidden>
Date: 2012-09-19 19:22:54
Also in:
fio
Subsystem:
the rest · Maintainer:
Linus Torvalds
Currently only one external ioengine can be exported because it use hardcoded 'ioengine' symbol, but if we allow external modules to have ops symbol similar to it's name then several extrnal engines become possible. NOTE: Old linking layout preserved Signed-off-by: Dmitry Monakhov <redacted> --- ioengines.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/ioengines.c b/ioengines.c
index b43374e..c2a64cb 100644
--- 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);
--
1.7.7.6