x 20ecf652c129d..260e063e3bc2d 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -1752,7 +1752,7 @@ dax_iomap_rw(struct kiocb *iocb, struct iov_iter *iter,
 	if (iov_iter_rw(iter) == WRITE) {
 		lockdep_assert_held_write(&iomi.inode->i_rwsem);
 		iomi.flags |= IOMAP_WRITE;
-	} else {
+	} else if (!sb_rdonly(iomi.inode->i_sb)) {
 		lockdep_assert_held(&iomi.inode->i_rwsem);
 	}
 
-- 
2.51.0[PATCH 6.17 058/159] dax: skip read lock assertion for read-only filesystemsGreg Kroah-Hartman <gregkh@linuxfoundation.org> undefinedstable@vger.kernel.org undefined undefined undefined undefined undefined undefined undefined undefined�