What: /sys/kernel/dmabuf/buffers
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Date: January 2021
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KernelVersion: v5.12
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Contact: Hridya Valsaraju <hridya@google.com>
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Description: The /sys/kernel/dmabuf/buffers directory contains a
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snapshot of the internal state of every DMA-BUF.
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/sys/kernel/dmabuf/buffers/<inode_number> will contain the
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statistics for the DMA-BUF with the unique inode number
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<inode_number>
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Users: kernel memory tuning/debugging tools
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What: /sys/kernel/dmabuf/buffers/<inode_number>/exporter_name
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Date: January 2021
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KernelVersion: v5.12
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Contact: Hridya Valsaraju <hridya@google.com>
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Description: This file is read-only and contains the name of the exporter of
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the DMA-BUF.
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What: /sys/kernel/dmabuf/buffers/<inode_number>/size
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Date: January 2021
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KernelVersion: v5.12
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Contact: Hridya Valsaraju <hridya@google.com>
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Description: This file is read-only and specifies the size of the DMA-BUF in
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bytes.
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