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-rw-r--r--fs/pnode.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/pnode.h b/fs/pnode.h
index b59f0e9fe6b1..020e1bb60fdb 100644
--- a/fs/pnode.h
+++ b/fs/pnode.h
@@ -15,6 +15,7 @@
#define IS_MNT_SLAVE(mnt) (mnt->mnt_master)
#define IS_MNT_NEW(mnt) (!mnt->mnt_namespace)
#define CLEAR_MNT_SHARED(mnt) (mnt->mnt_flags &= ~MNT_SHARED)
+#define IS_MNT_UNBINDABLE(mnt) (mnt->mnt_flags & MNT_UNBINDABLE)
#define CL_EXPIRE 0x01
#define CL_SLAVE 0x02