CONFIG_TMPFS: Tmpfs virtual memory file system support (former shm fs)

General informations

The Linux kernel configuration item CONFIG_TMPFS has multiple definitions:

Tmpfs virtual memory file system support (former shm fs) found in fs/Kconfig

The configuration item CONFIG_TMPFS:

• prompt: Tmpfs virtual memory file system support (former shm fs)
• type: bool
• depends on: CONFIG_SHMEM
• defined in fs/Kconfig
• found in Linux kernels: 3.2–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.17, 6.18-rc+HEAD

Help text

Tmpfs is a file system which keeps all files in virtual memory.

Everything in tmpfs is temporary in the sense that no files will be created on your hard drive. The files live in memory and swap space. If you unmount a tmpfs instance, everything stored therein is lost.

See Documentation/filesystems/tmpfs.rst for details.

Virtual memory file system support (former shm fs) found in fs/Kconfig

The configuration item CONFIG_TMPFS:

• prompt: Virtual memory file system support (former shm fs)
• type: bool
• depends on: CONFIG_SHMEM
• defined in fs/Kconfig
• found in Linux kernels: 2.5.45–2.5.75, 2.6.0–2.6.39, 3.0–3.1

Help text

Tmpfs is a file system which keeps all files in virtual memory.

Everything in tmpfs is temporary in the sense that no files will be created on your hard drive. The files live in memory and swap space. If you unmount a tmpfs instance, everything stored therein is lost.

See Documentation/filesystems/tmpfs.txt for details.

Hardware

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The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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