Revert "io_uring/kbuf: protect io_buffer_list teardown with a reference"
This reverts commit b392402d which is commit 6b69c4ab upstream. It breaks the Android kernel abi and can be brought back in the future in an abi-safe way if it is really needed. Bug: 161946584 Change-Id: I180235b1f125eca55504bddee36b3a4d8c5f7698 Signed-off-by:Greg Kroah-Hartman <gregkh@google.com>
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