1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/staging/erofs/internal.h b/drivers/staging/erofs/internal.h
index 5096b27bcf0d..57575c7f5635 100644
--- a/drivers/staging/erofs/internal.h
+++ b/drivers/staging/erofs/internal.h
@@ -517,6 +517,15 @@ erofs_get_inline_page(struct inode *inode,
 }
 
 /* inode.c */
+static inline unsigned long erofs_inode_hash(erofs_nid_t nid)
+{
+#if BITS_PER_LONG == 32
+	return (nid >> 32) ^ (nid & 0xffffffff);
+#else
+	return nid;
+#endif
+}
+
 extern struct inode *erofs_iget(struct super_block *sb,
 	erofs_nid_t nid, bool dir);