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Filename Latest commit message Latest commit date
Hyeongseok Kim 73138cb2dc exfat: fix erroneous discard when clear cluster bit 
If mounted with discard option, exFAT issues discard command when clear
cluster bit to remove file. But the input parameter of cluster-to-sector
calculation is abnormally added by reserved cluster size which is 2,
leading to discard unrelated sectors included in target+2 cluster.
With fixing this, remove the wrong comments in set/clear/find bitmap
functions.

Fixes: 1e49a94cf707 ("exfat: add bitmap operations")
Cc: stable@vger.kernel.org # v5.7+
Signed-off-by: Hyeongseok Kim <hyeongseok@gmail.com>
Acked-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2021-03-04 08:48:53 +09:00
.travis.yml
.travis_cmd_wrapper.pl
.travis_get_mainline_kernel
balloc.c exfat: fix erroneous discard when clear cluster bit 2021-03-04 08:48:53 +09:00
cache.c
dir.c
exfat_fs.h exfat: improve performance of exfat_free_cluster when using dirsync mount option 2021-02-01 10:33:25 +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: improve performance of exfat_free_cluster when using dirsync mount option 2021-02-01 10:33:25 +09:00
file.c
inode.c
Kconfig
Makefile
misc.c
namei.c
nls.c
README.md
super.c exfat: fix shift-out-of-bounds in exfat_fill_super() 2021-02-01 10:35:05 +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