Lession 14 Linux内核构建中文件系统选项介绍

Lession 14 Linux内核构建中文件系统选项介绍

文件系统作为操作系统的一个模块，需要对内核进行配置才能使用；内核提供对文件系统功能选项的配置功能。

一、文件系统公共选项: fs/Kconfig
CONFIG_FS_POSIX_ACL (ACL控制)
CONFIG_FILE_LOCKING (NFS网络文件系统, flock系统调用)

[Notify]
	CONFIG_FSNOTIFY
	CONFIG_DNOTIFY (基于目录的文件变化的通知机制)
	CONFIG_INOTIFY_USER (替代Dnotify)
	CONFIG_FANOTIFY
	CONFIG_FANOTIFY_ACCESS_PERMISSIONS

[Quota: ext2,ext3,reiserfs]
	CONFIG_QUOTA
	CONFIG_QUOTA_NETLINK_INTERFACE
	CONFIG_PRINT_QUOTA_WARNING
	CONFIG_QUOTA_DEBUG
	CONFIG_QUOTA_TREE
	CONFIG_QFMT_V1
	CONFIG_QFMT_V2
	CONFIG_QUOTACTL
	CONFIG_QUOTACTL_COMPAT

[Autofs4: 类似Windows上的网络驱动器]
	CONFIG_AUTOFS4_FS

[FUSE]
	CONFIG_FUSE_FS
	CONFIG_CUSE (FUSE extension)

[Caches]
	CONFIG_FSCACHE
	CONFIG_FSCACHE_XXX
	CONFIG_CACHEFILES
	CONFIG_CACHEFILES_XXX

[Partition Types]
	CONFIG_PARTITION_ADVANCED (hard disks)

[NLS: Native Language Support]
	CONFIG_NLS
	CONFIG_NLS_DEFAULT
	CONFIG_NLS_CODEPAGE_XXX (CP936,GB2312)
	CONFIG_NLS_ISO8859_XXX

[DLM: Distributed Lock Manager]
	CONFIG_DLM (为各种分布式文件系统提供通用的锁定支持)

二、具体文件系统特性选项:
CONFIG_EXT2_XXX
CONFIG_EXT3_XXX
CONFIG_EXT4_XXX

CONFIG_REISERFS_XXX
CONFIG_BTRFS_XXX
CONFIG_JFS_XXX

......

CONFIG_UDF_XXX

[Windows FS]
	CONFIG_FAT_FS (base functions to support MS-DOS/VFAT)
	CONFIG_VFAT_FS (windows 95,fat32)
	CONFIG_MSDOS_FS
	CONFIG_FAT_DEFAULT_CODEPAGE
	CONFIG_FAT_DEFAULT_IOCHARSET (vfat use, "utf8" not recommened here)
	CONFIG_NTFS_XXX

CONFIG_PROC_XXX
CONFIG_TMPFS_XXX
CONFIG_SYSFS

.......

[Misc FS]
CONFIG_YAFFS2_XXX
	YAFFS_YAFFS1: 512B/page
	YAFFS_DOES_ECC: fs ECC or MTD-NAND ECC
	YAFFS_YAFFS2: >=2K bytes/page
	YAFFS_AUTO_YAFFS2
	YAFFS_ALWAYS_CHECK_CHUNK_ERASED
	YAFFS_EMPTY_LOST_AND_FOUND
	YAFFS_DISABLE_BLOCK_REFRESHING (useful for MLC)
	YAFFS_DISABLE_BACKGROUND
	YAFFS_XATTR

CONFIG_JFFS2_XXX
	JFFS2_FS_DEBUG
	JFFS2_FS_WRITEBUFFER
	JFFS2_FS_WBUF_VERIFY
	JFFS2_SUMMARY (EXPERIMENTAL:sumtool,for faster mount)
	JFFS2_FS_XATTR(EXPERIMENTAL)
	JFFS2_FS_POSIX_ACL (xattr)
	JFFS2_FS_SECURITY (xattr)
	JFFS2_COMPRESSION_OPTIONS: ZLIB,LZO,RTIME,RUBIN
	JFFS2_CMODE_NONE
	JFFS2_CMODE_PRIORITY (first successful one)
	JFFS2_CMODE_SIZE (smallest size one)
	JFFS2_CMODE_FAVOURLZO (smallest, but lzo favour)

CONFIG_CRAMFS

CONFIG_SQUASHFS_XXX
	SQUASHFS_XATTR
	SQUASHFS_LZO (aimed at embedded systems with slower CPUs)
	SQUASHFS_XZ
	SQUASHFS_EMBEDDED
	SQUASHFS_FRAGMENT_CACHE_SIZE (default: the last 3 fragments)

CONFIG_UBIFS_XXX
CONFIG_LOGFS_XXX
......

[Network FS]
	CONFIG_NFS_XXX  (client)
		NFS_COMMON
		NFS_ACL_SUPPORT
		Version: V3 V4
		ROOT_NFS
		NFS_FSCACHE
		NFS_USE_LEGACY_DNS / NFS_USE_KERNEL_DNS
	CONFIG_NFSD_XXX
	CONFIG_SUNRPC_XXX
	CONFIG_CIFS_XXX(samba)