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-rw-r--r--sys/geom/geom.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/geom/geom.h b/sys/geom/geom.h
index c93053a1d5f9..35255e8de71c 100644
--- a/sys/geom/geom.h
+++ b/sys/geom/geom.h
@@ -310,6 +310,8 @@ extern struct sx topology_lock;
sx_xlock(&topology_lock); \
} while (0)
+#define g_topology_try_lock() sx_try_xlock(&topology_lock)
+
#define g_topology_unlock() \
do { \
sx_xunlock(&topology_lock); \