fs/Kconfig: move nilfs2 outside misc filesystems

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>

fs/Kconfig

@@ -43,6 +43,7 @@ source "fs/xfs/Kconfig"
 source "fs/gfs2/Kconfig"
 source "fs/ocfs2/Kconfig"
 source "fs/btrfs/Kconfig"
+source "fs/nilfs2/Kconfig"
 
 endif # BLOCK
 
@@ -186,7 +187,6 @@ source "fs/romfs/Kconfig"
 source "fs/sysv/Kconfig"
 source "fs/ufs/Kconfig"
 source "fs/exofs/Kconfig"
-source "fs/nilfs2/Kconfig"
 
 endif # MISC_FILESYSTEMS
 

fs/nilfs2/Kconfig

 config NILFS2_FS
 	tristate "NILFS2 file system support (EXPERIMENTAL)"
-	depends on BLOCK && EXPERIMENTAL
+	depends on EXPERIMENTAL
 	select CRC32
 	help
 	  NILFS2 is a log-structured file system (LFS) supporting continuous