linux-kernel - [PATCH 17/17] f2fs: update Kconfig and Makefile

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Date:	Wed, 31 Oct 2012 18:50:25 +0900
From:	Jaegeuk Kim <jaegeuk.kim@...sung.com>
To:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	gregkh@...uxfoundation.org, viro@...iv.linux.org.uk, arnd@...db.de,
	tytso@....edu, chur.lee@...sung.com, cm224.lee@...sung.com,
	jooyoung.hwang@...sung.com
Subject: [PATCH 17/17] f2fs: update Kconfig and Makefile

This adds Makefile and Kconfig for f2fs, and updates Makefile and Kconfig files
in the fs directory.
In addition, add F2FS_SUPER_MAGIC in magic.h.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@...sung.com>
---
 fs/Kconfig                 |    1 +
 fs/Makefile                |    1 +
 fs/f2fs/Kconfig            |   52 ++++++++++++++++++++++++++++++++++++++++++++
 fs/f2fs/Makefile           |    7 ++++++
 include/uapi/linux/magic.h |    1 +
 5 files changed, 62 insertions(+)
 create mode 100644 fs/f2fs/Kconfig
 create mode 100644 fs/f2fs/Makefile

diff --git a/fs/Kconfig b/fs/Kconfig
index f95ae3a..e352b37 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -220,6 +220,7 @@ source "fs/pstore/Kconfig"
 source "fs/sysv/Kconfig"
 source "fs/ufs/Kconfig"
 source "fs/exofs/Kconfig"
+source "fs/f2fs/Kconfig"
 
 endif # MISC_FILESYSTEMS
 
diff --git a/fs/Makefile b/fs/Makefile
index 1d7af79..9d53192 100644
--- a/fs/Makefile
+++ b/fs/Makefile
@@ -123,6 +123,7 @@ obj-$(CONFIG_DEBUG_FS)		+= debugfs/
 obj-$(CONFIG_OCFS2_FS)		+= ocfs2/
 obj-$(CONFIG_BTRFS_FS)		+= btrfs/
 obj-$(CONFIG_GFS2_FS)           += gfs2/
+obj-$(CONFIG_F2FS_FS)		+= f2fs/
 obj-y				+= exofs/ # Multiple modules
 obj-$(CONFIG_CEPH_FS)		+= ceph/
 obj-$(CONFIG_PSTORE)		+= pstore/
diff --git a/fs/f2fs/Kconfig b/fs/f2fs/Kconfig
new file mode 100644
index 0000000..37a6b8e
--- /dev/null
+++ b/fs/f2fs/Kconfig
@@ -0,0 +1,52 @@
+config F2FS_FS
+	tristate "F2FS filesystem support (EXPERIMENTAL)"
+	help
+	  F2FS is based on Log-structured File System (LFS), which supports
+	  versatile "flash-friendly" features. The design has been focused on
+	  addressing the fundamental issues in LFS, which are snowball effect
+	  of wandering tree and high cleaning overhead.
+
+	  Since flash-based storages show different characteristics according to
+	  the internal geometry or flash memory management schemes aka FTL, F2FS
+	  and tools support various parameters not only for configuring on-disk
+	  layout, but also for selecting allocation and cleaning algorithms.
+
+	  If unsure, say N.
+
+config F2FS_STAT_FS
+	bool "F2FS Status Information"
+	depends on F2FS_FS && DEBUG_FS
+	default y
+	help
+	  /sys/kernel/debug/f2fs/ contains information about all the partitions
+	  mounted as f2fs. Each file shows the whole f2fs information.
+
+	  /sys/kernel/debug/f2fs/status includes:
+	    - major file system information managed by f2fs currently
+	    - average SIT information about whole segments
+	    - current memory footprint consumed by f2fs.
+
+config F2FS_FS_XATTR
+	bool "F2FS extended attributes"
+	depends on F2FS_FS
+	default y
+	help
+	  Extended attributes are name:value pairs associated with inodes by
+	  the kernel or by users (see the attr(5) manual page, or visit
+	  <http://acl.bestbits.at/> for details).
+
+	  If unsure, say N.
+
+config F2FS_FS_POSIX_ACL
+	bool "F2FS Access Control Lists"
+	depends on F2FS_FS_XATTR
+	select FS_POSIX_ACL
+	default y
+	help
+	  Posix Access Control Lists (ACLs) support permissions for users and
+	  gourps beyond the owner/group/world scheme.
+
+	  To learn more about Access Control Lists, visit the POSIX ACLs for
+	  Linux website <http://acl.bestbits.at/>.
+
+	  If you don't know what Access Control Lists are, say N
diff --git a/fs/f2fs/Makefile b/fs/f2fs/Makefile
new file mode 100644
index 0000000..27a0820
--- /dev/null
+++ b/fs/f2fs/Makefile
@@ -0,0 +1,7 @@
+obj-$(CONFIG_F2FS_FS) += f2fs.o
+
+f2fs-y		:= dir.o file.o inode.o namei.o hash.o super.o
+f2fs-y		+= checkpoint.o gc.o data.o node.o segment.o recovery.o
+f2fs-$(CONFIG_F2FS_STAT_FS) += debug.o
+f2fs-$(CONFIG_F2FS_FS_XATTR) += xattr.o
+f2fs-$(CONFIG_F2FS_FS_POSIX_ACL) += acl.o
diff --git a/include/uapi/linux/magic.h b/include/uapi/linux/magic.h
index e15192c..66353ff 100644
--- a/include/uapi/linux/magic.h
+++ b/include/uapi/linux/magic.h
@@ -23,6 +23,7 @@
 #define EXT4_SUPER_MAGIC	0xEF53
 #define BTRFS_SUPER_MAGIC	0x9123683E
 #define NILFS_SUPER_MAGIC	0x3434
+#define F2FS_SUPER_MAGIC	0xF2F52010
 #define HPFS_SUPER_MAGIC	0xf995e849
 #define ISOFS_SUPER_MAGIC	0x9660
 #define JFFS2_SUPER_MAGIC	0x72b6
-- 
1.7.9.5




---
Jaegeuk Kim
Samsung


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