CONFIG_OVERLAY_FS: Overlay filesystem support

General informations

The Linux kernel configuration item CONFIG_OVERLAY_FS:

• prompt: Overlay filesystem support
• type: tristate
• depends on: (none)
• defined in fs/overlayfs/Kconfig
• found in Linux kernels: 3.18–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.12
• modules built: overlay

Help text

An overlay filesystem combines two filesystems - an 'upper' filesystem and a 'lower' filesystem. When a name exists in both filesystems, the object in the 'upper' filesystem is visible while the object in the 'lower' filesystem is either hidden or, in the case of directories, merged with the 'upper' object.

For more information see Documentation/filesystems/overlayfs.rst

Hardware

LKDDb

Raw data from LKDDb:

• lkddb fs "overlay" : CONFIG_OVERLAY_FS : fs/overlayfs/super.c # in 3.18–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.12
• lkddb module overlay CONFIG_OVERLAY_FS : fs/overlayfs/Kconfig : "Overlay filesystem support" # in 3.18–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.12

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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