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Filename Latest commit message Latest commit date
Chung-Chiang Cheng 8dbffe2044 exfat: introduce mount option 'sys_tz' 
EXFAT_TZ_VALID bit in {create,modify,access}_tz is corresponding to
OffsetValid field in exfat specification [1]. When this bit isn't
set, timestamps should be treated as having the same UTC offset as
the current local time.

Currently, there is an option 'time_offset' for users to specify the
UTC offset for this issue. This patch introduces a new mount option
'sys_tz' to use system timezone as time offset.

Link: [1] https://docs.microsoft.com/en-us/windows/win32/fileio/exfat-specification#74102-offsetvalid-field

Signed-off-by: Chung-Chiang Cheng <cccheng@synology.com>
Acked-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
2022-04-08 22:02:12 +09:00
.travis_cmd_wrapper.pl
.travis_get_mainline_kernel
balloc.c exfat: remove argument 'sector' from exfat_get_dentry() 2021-12-16 21:30:53 +09:00
cache.c exfat: fix use of uninitialized spinlock on error path 2020-10-12 22:56:52 +09:00
dir.c exfat: remove argument 'sector' from exfat_get_dentry() 2021-12-16 21:30:53 +09:00
exfat_fs.h exfat: introduce mount option 'sys_tz' 2022-04-08 22:02:12 +09:00
exfat_raw.h exfat: fix shift-out-of-bounds in exfat_fill_super() 2021-02-01 10:35:05 +09:00
fatent.c exfat: simplify is_valid_cluster() 2021-11-03 11:09:14 +09:00
file.c exfat: do not clear VolumeDirty in writeback 2022-03-29 16:44:49 +09:00
inode.c exfat: reuse exfat_inode_info variable instead of calling EXFAT_I() 2021-11-03 11:09:20 +09:00
Kconfig
Makefile exfat: fix typo in Makefile 2021-10-14 22:24:23 -07:00
misc.c exfat: introduce mount option 'sys_tz' 2022-04-08 22:02:12 +09:00
namei.c exfat: fix referencing wrong parent directory information 2022-04-04 12:08:51 +09:00
nls.c exfat: remove argument 'sector' from exfat_get_dentry() 2021-12-16 21:30:53 +09:00
README.md
super.c exfat: introduce mount option 'sys_tz' 2022-04-08 22:02:12 +09:00

README.md

exFAT filesystem

This is the exfat filesystem for support from the linux 4.1 kernel to the latest kernel.

Installing as a stand-alone module

Install prerequisite package for Fedora, RHEL:

	yum install kernel-devel-$(uname -r)

Build step:

	make
	sudo make install

To load the driver manually, run this as root:

	modprobe exfat

Installing as a part of the kernel

  1. Let's take [linux] as the path to your kernel source dir.
	cd [linux]
	cp -ar exfat [linux]/fs/
  1. edit [linux]/fs/Kconfig
	source "fs/fat/Kconfig"
	+source "fs/exfat/Kconfig"
	source "fs/ntfs/Kconfig"
  1. edit [linux]/fs/Makefile
	obj-$(CONFIG_FAT_FS)          += fat/
	+obj-$(CONFIG_EXFAT_FS)       += exfat/
	obj-$(CONFIG_BFS_FS)          += bfs/
  1. make menuconfig and set exfat
	File systems  --->
		DOS/FAT/NT Filesystems  --->
			<M> exFAT filesystem support
			(utf8) Default iocharset for exFAT

build your kernel