* dm.c: Add check whether DM_VERSION_MAJOR equals to 4, provide empty
dm_ioctl if check fails.
---
dm.c | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/dm.c b/dm.c
index ebdfc44..79bb7c7 100644
--- a/dm.c
+++ b/dm.c
@@ -5,6 +5,8 @@
# include <sys/ioctl.h>
# include <linux/dm-ioctl.h>
+# if DM_VERSION_MAJOR == 4
+
static void
dm_decode_device(const unsigned int code, const struct dm_ioctl *ioc)
{
@@ -375,4 +377,13 @@ dm_ioctl(struct tcb *tcp, const unsigned int code, long
arg)
}
}
-#endif
+# else /* !(DM_VERSION_MAJOR == 4) */
+
+int
+dm_ioctl(struct tcb *tcp, const unsigned int code, long arg)
+{
+ return 0;
+}
+
+# endif /* DM_VERSION_MAJOR == 4 */
+#endif /* HAVE_LINUX_DM_IOCTL_H */
--
1.7.10.4
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