CONFIG_BLK_DEV_UBLK: Userspace block driver (Experimental)

General informations

The Linux kernel configuration item CONFIG_BLK_DEV_UBLK:

• prompt: Userspace block driver (Experimental)
• type: tristate
• depends on: (none)
• defined in drivers/block/Kconfig
• found in Linux kernels: 6.0–6.8, 6.9-rc+HEAD
• modules built: ublk_drv

Help text

io_uring based userspace block driver. Together with ublk server, ublk has been working well, but interface with userspace or command data definition isn't finalized yet, and might change according to future requirement, so mark is as experimental now.

Say Y if you want to get better performance because task_work_add() can be used in IO path for replacing io_uring cmd, which will become shared between IO tasks and ubq daemon, meantime task_work_add() can can handle batch more effectively, but task_work_add() isn't exported for module, so ublk has to be built to kernel.

Hardware

LKDDb

Raw data from LKDDb:

• lkddb module ublk_drv CONFIG_BLK_DEV_UBLK : drivers/block/Kconfig : "Userspace block driver (Experimental)" # in 6.0–6.8, 6.9-rc+HEAD

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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