mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-12 20:56:46 +07:00
41f4db0f48
Some people asked me questions like the following: On Wed, 15 Jul 2009 13:11:21 +0200, Leon Woestenberg wrote: > just wondering, any reasons why NILFS2 is one of the miscellaneous > filesystems and, for example, btrfs, is not in Kconfig? Actually, nilfs is NOT a filesystem came from other operating systems, but a filesystem created purely for Linux. Nor is it a flash filesystem but that for generic block devices. So, this moves nilfs outside the misc category as I responded in LKML "Re: Why does NILFS2 hide under Miscellaneous filesystems?" (Message-Id: <20090716.002526.93465395.ryusuke@osrg.net>). Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
26 lines
1.2 KiB
Plaintext
26 lines
1.2 KiB
Plaintext
config NILFS2_FS
|
|
tristate "NILFS2 file system support (EXPERIMENTAL)"
|
|
depends on EXPERIMENTAL
|
|
select CRC32
|
|
help
|
|
NILFS2 is a log-structured file system (LFS) supporting continuous
|
|
snapshotting. In addition to versioning capability of the entire
|
|
file system, users can even restore files mistakenly overwritten or
|
|
destroyed just a few seconds ago. Since this file system can keep
|
|
consistency like conventional LFS, it achieves quick recovery after
|
|
system crashes.
|
|
|
|
NILFS2 creates a number of checkpoints every few seconds or per
|
|
synchronous write basis (unless there is no change). Users can
|
|
select significant versions among continuously created checkpoints,
|
|
and can change them into snapshots which will be preserved for long
|
|
periods until they are changed back to checkpoints. Each
|
|
snapshot is mountable as a read-only file system concurrently with
|
|
its writable mount, and this feature is convenient for online backup.
|
|
|
|
Some features including atime, extended attributes, and POSIX ACLs,
|
|
are not supported yet.
|
|
|
|
To compile this file system support as a module, choose M here: the
|
|
module will be called nilfs2. If unsure, say N.
|