fs/sdfat: Import from https://github.com/cryptomilk/kernel-sdfat

config SDFAT_FS

	tristate "sdFAT filesystem support"

	select NLS

	select NLS_UTF8

	select NLS_CODEPAGE_437

	select NLS_ISO8859_1

	help

	  If you want to use the sdFAT file system, then you must say Y or M

	  here to inlucde sdFAT support.

	  sdFAT is unified FAT-based file system which supports not only fat12/

	  16/32 with vfat but also exfat. sdFAT supports winnt short-name rule.

	  (winnt: emulate the Windows NT rule for display/create.)

	  To compile this as a module, choose M here: the module will be called

	  sdfat_core and sdfat_fs.

config SDFAT_USE_FOR_EXFAT

	bool "Register sdFAT as exFAT"

	default y

	depends on SDFAT_FS && !EXFAT_FS

	help

	  If you want to register sdFAT as available for exFAT, say Y.

config SDFAT_USE_FOR_VFAT

	bool "Register sdFAT as VFAT"

	default y

	depends on SDFAT_FS && !VFAT_FS

	help

	  If you want to register sdFAT as available for VFAT, say Y.

config SDFAT_DELAYED_META_DIRTY

	bool "Enable delayed metadata dirty"

	default y

	depends on SDFAT_FS

	help

	  If you enable this feature, metadata(FAT/Directory entry) is updated

	  by flush thread.

config SDFAT_SUPPORT_DIR_SYNC

	bool "Enable supporting dir sync"

	default n

	depends on SDFAT_FS

	help

	  If you enable this feature, the modification for directory operation

	  is written to a storage at once.

config SDFAT_DEFAULT_CODEPAGE

	int "Default codepage for sdFAT"

	default 437

	depends on SDFAT_FS

	help

	  This option should be set to the codepage of your sdFAT filesystems.

config SDFAT_DEFAULT_IOCHARSET

	string "Default iocharset for sdFAT"

	default "utf8"

	depends on SDFAT_FS

	help

	  Set this to the default input/output character set you'd

	  like sdFAT to use. It should probably match the character set

	  that most of your sdFAT filesystems use, and can be overridden

	  with the "iocharset" mount option for sdFAT filesystems.

config SDFAT_CHECK_RO_ATTR

	bool "Check read-only attribute"

	default n

	depends on SDFAT_FS

config SDFAT_ALIGNED_MPAGE_WRITE

	bool "Enable supporting aligned mpage_write"

	default y if SDFAT_FS=y

	default n if SDFAT_FS=m

	depends on SDFAT_FS

config SDFAT_VIRTUAL_XATTR

	bool "Virtual xattr support for sdFAT"

	default n

	depends on SDFAT_FS

	help

	  If you enable this feature, it supports virtual xattr.

	  This feature will be deprecated because it might be the same with

	  "context" mount option.

config SDFAT_VIRTUAL_XATTR_SELINUX_LABEL

	string "Default string for SELinux label"

	default "u:object_r:sdcard_external:s0"

	depends on SDFAT_FS && SDFAT_VIRTUAL_XATTR

	help

	  Set this to the default string for SELinux label.

config SDFAT_SUPPORT_STLOG

	bool "Enable storage log"

	default y

	depends on SDFAT_FS && PROC_STLOG

config SDFAT_DEBUG

	bool "enable debug features"

	depends on SDFAT_FS

	default y

config SDFAT_DBG_IOCTL

	bool "enable debug-ioctl features"

	depends on SDFAT_FS && SDFAT_DEBUG

	default n

config SDFAT_DBG_MSG

	bool "enable debug messages"

	depends on SDFAT_FS && SDFAT_DEBUG

	default y

config SDFAT_DBG_BUGON

	bool "enable strict BUG_ON() for debugging"

	depends on SDFAT_FS && SDFAT_DEBUG

	default n

config SDFAT_DBG_WARNON

	bool "enable strict WARN_ON() for debugging"

	depends on SDFAT_FS && SDFAT_DEBUG

	default n

config SDFAT_STATISTICS

	bool "enable statistics for bigdata"

	depends on SDFAT_FS

	default y

config SDFAT_UEVENT

	bool "enable uevent"

	depends on SDFAT_FS

	default y

                    GNU GENERAL PUBLIC LICENSE

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#

# Makefile for the linux FAT12/16/32(VFAT)/64(exFAT) filesystem driver.

#

obj-$(CONFIG_SDFAT_FS) += sdfat_fs.o

sdfat_fs-objs	:= sdfat.o core.o core_fat.o core_exfat.o api.o blkdev.o \

		   fatent.o amap_smart.o cache.o dfr.o nls.o misc.o \

		   mpage.o extent.o

sdfat_fs-$(CONFIG_SDFAT_VIRTUAL_XATTR) += xattr.o

sdfat_fs-$(CONFIG_SDFAT_STATISTICS) += statistics.o

all:

	make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules

clean:

	make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean

cscope:

	rm -rf cscope.files cscope.files

	find $(PWD) \( -name '*.c' -o -name '*.cpp' -o -name '*.cc' -o -name '*.h' -o -name '*.s' -o -name '*.S' \) -print > cscope.files

	cscope

sdFAT FS support for Linux Kernel 4.4

=====================================

sdFAT is unified FAT-based file system which supports not only fat12/16/32 with

vfat but also exfat. sdFAT supports winnt short-name rule.

Suggested Kernel config:

    CONFIG_SDFAT_FS=y

    CONFIG_SDFAT_DELAYED_META_DIRTY=y

    CONFIG_SDFAT_SUPPORT_DIR_SYNC=y

    CONFIG_SDFAT_DEFAULT_CODEPAGE=437

    CONFIG_SDFAT_DEFAULT_IOCHARSET="utf8"

    CONFIG_SDFAT_ALIGNED_MPAGE_WRITE=y

    CONFIG_SDFAT_VIRTUAL_XATTR=y

    CONFIG_SDFAT_VIRTUAL_XATTR_SELINUX_LABEL="u:object_r:vfat:s0"

    CONFIG_SDFAT_DEBUG=y

    CONFIG_SDFAT_DBG_MSG=y

    CONFIG_SDFAT_STATISTICS=y