CONFIG_DMABUF_SYSFS_STATS: DMA-BUF sysfs statistics (DEPRECATED)

General informations

The Linux kernel configuration item CONFIG_DMABUF_SYSFS_STATS has multiple definitions:

DMA-BUF sysfs statistics (DEPRECATED) found in drivers/dma-buf/Kconfig

The configuration item CONFIG_DMABUF_SYSFS_STATS:

• prompt: DMA-BUF sysfs statistics (DEPRECATED)
• type: bool
• depends on: CONFIG_DMA_SHARED_BUFFER
• defined in drivers/dma-buf/Kconfig
• found in Linux kernels: 6.0–6.12, 6.13-rc+HEAD

Help text

Choose this option to enable DMA-BUF sysfs statistics in location /sys/kernel/dmabuf/buffers.

/sys/kernel/dmabuf/buffers/<inode_number> will contain statistics for the DMA-BUF with the unique inode number <inode_number>.

This option is deprecated and should sooner or later be removed. Android is the only user of this and it turned out that this resulted in quite some performance problems.

DMA-BUF sysfs statistics found in drivers/dma-buf/Kconfig

The configuration item CONFIG_DMABUF_SYSFS_STATS:

• prompt: DMA-BUF sysfs statistics
• type: bool
• depends on: CONFIG_DMA_SHARED_BUFFER
• defined in drivers/dma-buf/Kconfig
• found in Linux kernels: 5.15–5.19, 5.19+HEAD

Help text

Choose this option to enable DMA-BUF sysfs statistics in location /sys/kernel/dmabuf/buffers.

/sys/kernel/dmabuf/buffers/<inode_number> will contain statistics for the DMA-BUF with the unique inode number <inode_number>.

Hardware

LKDDb

Raw data from LKDDb:

• (none)

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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