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-rw-r--r--include/linux/dcache.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 484c8792da82..f28100f6b556 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -575,5 +575,17 @@ static inline struct inode *vfs_select_inode(struct dentry *dentry,
return inode;
}
+/**
+ * d_real_inode - Return the real inode
+ * @dentry: The dentry to query
+ *
+ * If dentry is on an union/overlay, then return the underlying, real inode.
+ * Otherwise return d_inode().
+ */
+static inline struct inode *d_real_inode(struct dentry *dentry)
+{
+ return d_backing_inode(d_real(dentry));
+}
+
#endif /* __LINUX_DCACHE_H */