nilfs2: update makefile and Kconfig

[linux-2.6-omap-h63xx.git] / fs / Kconfig

diff --git a/fs/Kconfig b/fs/Kconfig
index 93945dd0b1aed999107f55452a2f44a67077c3f5..9f7270f36b2af4e207b26ff52f9b98ad502d8c00 100644 (file)
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -56,61 +56,7 @@ endif # BLOCK
 
 source "fs/notify/Kconfig"
 
-config QUOTA
-       bool "Quota support"
-       help
-         If you say Y here, you will be able to set per user limits for disk
-         usage (also called disk quotas). Currently, it works for the
-         ext2, ext3, and reiserfs file system. ext3 also supports journalled
-         quotas for which you don't need to run quotacheck(8) after an unclean
-         shutdown.
-         For further details, read the Quota mini-HOWTO, available from
-         <http://www.tldp.org/docs.html#howto>, or the documentation provided
-         with the quota tools. Probably the quota support is only useful for
-         multi user systems. If unsure, say N.
-
-config QUOTA_NETLINK_INTERFACE
-       bool "Report quota messages through netlink interface"
-       depends on QUOTA && NET
-       help
-         If you say Y here, quota warnings (about exceeding softlimit, reaching
-         hardlimit, etc.) will be reported through netlink interface. If unsure,
-         say Y.
-
-config PRINT_QUOTA_WARNING
-       bool "Print quota warnings to console (OBSOLETE)"
-       depends on QUOTA
-       default y
-       help
-         If you say Y here, quota warnings (about exceeding softlimit, reaching
-         hardlimit, etc.) will be printed to the process' controlling terminal.
-         Note that this behavior is currently deprecated and may go away in
-         future. Please use notification via netlink socket instead.
-
-# Generic support for tree structured quota files. Seleted when needed.
-config QUOTA_TREE
-        tristate
-
-config QFMT_V1
-       tristate "Old quota format support"
-       depends on QUOTA
-       help
-         This quota format was (is) used by kernels earlier than 2.4.22. If
-         you have quota working and you don't want to convert to new quota
-         format say Y here.
-
-config QFMT_V2
-       tristate "Quota format v2 support"
-       depends on QUOTA
-       select QUOTA_TREE
-       help
-         This quota format allows using quotas with 32-bit UIDs/GIDs. If you
-         need this functionality say Y here.
-
-config QUOTACTL
-       bool
-       depends on XFS_QUOTA || QUOTA
-       default y
+source "fs/quota/Kconfig"
 
 source "fs/autofs/Kconfig"
 source "fs/autofs4/Kconfig"
@@ -120,6 +66,13 @@ config GENERIC_ACL
        bool
        select FS_POSIX_ACL
 
+menu "Caches"
+
+source "fs/fscache/Kconfig"
+source "fs/cachefiles/Kconfig"
+
+endmenu
+
 if BLOCK
 menu "CD-ROM/DVD Filesystems"
 
@@ -222,6 +175,33 @@ 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