diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2009-09-08 17:55:54 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2009-09-08 17:55:54 -0700 |
| commit | 9134d02bc0af4a8747d448d1f811ec5f8eb96df6 (patch) | |
| tree | 704c3e5dcc10f360815c4868a74711f82fb62e27 /fs/nilfs2/Kconfig | |
| parent | bbb20089a3275a19e475dbc21320c3742e3ca423 (diff) | |
| parent | 80ffb3cceaefa405f2ecd46d66500ed8d53efe74 (diff) | |
Merge commit 'md/for-linus' into async-tx-next
Conflicts:
drivers/md/raid5.c
Diffstat (limited to 'fs/nilfs2/Kconfig')
| -rw-r--r-- | fs/nilfs2/Kconfig | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/fs/nilfs2/Kconfig b/fs/nilfs2/Kconfig new file mode 100644 index 00000000000..72da095d400 --- /dev/null +++ b/fs/nilfs2/Kconfig @@ -0,0 +1,25 @@ +config NILFS2_FS + tristate "NILFS2 file system support (EXPERIMENTAL)" + depends on BLOCK && 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. |