What: /sys/kernel/dmabuf/buffers Date: May 2021 KernelVersion: v5.13 Contact: Hridya Valsaraju <hridya@google.com> Description: The /sys/kernel/dmabuf/buffers directory contains a snapshot of the internal state of every DMA-BUF. /sys/kernel/dmabuf/buffers/<inode_number> will contain the statistics for the DMA-BUF with the unique inode number <inode_number> Users: kernel memory tuning/debugging tools What: /sys/kernel/dmabuf/buffers/<inode_number>/exporter_name Date: May 2021 KernelVersion: v5.13 Contact: Hridya Valsaraju <hridya@google.com> Description: This file is read-only and contains the name of the exporter of the DMA-BUF. What: /sys/kernel/dmabuf/buffers/<inode_number>/size Date: May 2021 KernelVersion: v5.13 Contact: Hridya Valsaraju <hridya@google.com> Description: This file is read-only and specifies the size of the DMA-BUF in bytes.