Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) # SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) config NILFS2_FS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) 	tristate "NILFS2 file system support"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 	select CRC32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 	  NILFS2 is a log-structured file system (LFS) supporting continuous
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 	  snapshotting.  In addition to versioning capability of the entire
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 	  file system, users can even restore files mistakenly overwritten or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 	  destroyed just a few seconds ago.  Since this file system can keep
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 	  consistency like conventional LFS, it achieves quick recovery after
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 	  system crashes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 	  NILFS2 creates a number of checkpoints every few seconds or per
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	  synchronous write basis (unless there is no change).  Users can
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	  select significant versions among continuously created checkpoints,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 	  and can change them into snapshots which will be preserved for long
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	  periods until they are changed back to checkpoints.  Each
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	  snapshot is mountable as a read-only file system concurrently with
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	  its writable mount, and this feature is convenient for online backup.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	  Some features including atime, extended attributes, and POSIX ACLs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	  are not supported yet.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	  To compile this file system support as a module, choose M here: the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	  module will be called nilfs2.  If unsure, say N.