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-rw-r--r--ipc/ipc_object.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/ipc/ipc_object.h b/ipc/ipc_object.h
index 8504a23..e43c7d2 100644
--- a/ipc/ipc_object.h
+++ b/ipc/ipc_object.h
@@ -89,6 +89,7 @@ extern struct kmem_cache ipc_object_caches[IOT_NUMBER];
#define io_lock(io) lock_write(&(io)->io_lock_data)
#define io_lock_try(io) lock_try_write(&(io)->io_lock_data)
#define io_unlock(io) lock_write_done(&(io)->io_lock_data)
+#define have_io_lock(io) have_write_lock(&(io)->io_lock_data)
#define io_check_unlock(io) \
MACRO_BEGIN \