CONFIG_BLK_DEV_RAM_DAX: Support Direct Access (DAX) to RAM block devices

General informations

The Linux kernel configuration item CONFIG_BLK_DEV_RAM_DAX:

• prompt: Support Direct Access (DAX) to RAM block devices
• type: bool
• depends on: CONFIG_BLK_DEV_RAM && CONFIG_FS_DAX
• defined in drivers/block/Kconfig
• found in Linux kernels: 4.0–4.14

Help text

Support filesystems using DAX to access RAM block devices. This avoids double-buffering data in the page cache before copying it to the block device. Answering Y will slightly enlarge the kernel, and will prevent RAM block device backing store memory from being allocated from highmem (only a problem for highmem systems).

Hardware

LKDDb

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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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