pytorch

23c14340 - use mutable_data_ptr for grad_input in backward passes (#98999)

use mutable_data_ptr for grad_input in backward passes (#98999) Summary: Test Plan: Rely on CI. Reviewers: ezyang Subscribers: Tasks: Tags: Pull Request resolved: https://github.com/pytorch/pytorch/pull/98999 Approved by: https://github.com/ezyang