diff options
| author | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2009-04-06 19:01:41 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-04-07 08:31:16 -0700 |
| commit | 0c4fb877641c5c72d4a3ce8921a256bfe44055c0 (patch) | |
| tree | 496ab331abe225266beabac80f1172b866ef2a15 | |
| parent | 7942b919f7321f95a777d396ff7894a7a83dc9b0 (diff) | |
| download | lwn-0c4fb877641c5c72d4a3ce8921a256bfe44055c0.tar.gz lwn-0c4fb877641c5c72d4a3ce8921a256bfe44055c0.zip | |
nilfs2: update makefile and Kconfig
This adds a Makefile for the nilfs2 file system, and updates the
makefile and Kconfig file in the file system directory.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | fs/Kconfig | 27 | ||||
| -rw-r--r-- | fs/Makefile | 1 | ||||
| -rw-r--r-- | fs/nilfs2/Makefile | 5 |
3 files changed, 32 insertions, 1 deletions
diff --git a/fs/Kconfig b/fs/Kconfig index 86b203fc3c56..9f7270f36b2a 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -175,9 +175,34 @@ source "fs/qnx4/Kconfig" source "fs/romfs/Kconfig" source "fs/sysv/Kconfig" source "fs/ufs/Kconfig" - source "fs/exofs/Kconfig" +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. + endif # MISC_FILESYSTEMS menuconfig NETWORK_FILESYSTEMS diff --git a/fs/Makefile b/fs/Makefile index 70b2aed87133..af6d04700d9c 100644 --- a/fs/Makefile +++ b/fs/Makefile @@ -114,6 +114,7 @@ obj-$(CONFIG_JFS_FS) += jfs/ obj-$(CONFIG_XFS_FS) += xfs/ obj-$(CONFIG_9P_FS) += 9p/ obj-$(CONFIG_AFS_FS) += afs/ +obj-$(CONFIG_NILFS2_FS) += nilfs2/ obj-$(CONFIG_BEFS_FS) += befs/ obj-$(CONFIG_HOSTFS) += hostfs/ obj-$(CONFIG_HPPFS) += hppfs/ diff --git a/fs/nilfs2/Makefile b/fs/nilfs2/Makefile new file mode 100644 index 000000000000..df3e62c1ddc5 --- /dev/null +++ b/fs/nilfs2/Makefile @@ -0,0 +1,5 @@ +obj-$(CONFIG_NILFS2_FS) += nilfs2.o +nilfs2-y := inode.o file.o dir.o super.o namei.o page.o mdt.o \ + btnode.o bmap.o btree.o direct.o dat.o recovery.o \ + the_nilfs.o segbuf.o segment.o cpfile.o sufile.o \ + ifile.o alloc.o gcinode.o ioctl.o gcdat.o |