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Filename Latest commit message Latest commit date
Yuezhang Mo 2ae96136ee exfat: fix referencing wrong parent directory information 
During renaming, the parent directory information maybe
updated. But the file/directory still references to the
old parent directory information.

This bug will cause 2 problems.

(1) The renamed file can not be written.

    [10768.175172] exFAT-fs (sda1): error, failed to bmap (inode : 7afd50e4 iblock : 0, err : -5)
    [10768.184285] exFAT-fs (sda1): Filesystem has been set read-only
    ash: write error: Input/output error

(2) Some dentries of the renamed file/directory are not set
    to deleted after removing the file/directory.

exfat_update_parent_info() is a workaround for the wrong parent
directory information being used after renaming. Now that bug is
fixed, this is no longer needed, so remove it.

Fixes: 5f2aa075070c ("exfat: add inode operations")
Cc: stable@vger.kernel.org # v5.7+
Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Reviewed-by: Andy Wu <Andy.Wu@sony.com>
Reviewed-by: Aoyama Wataru <wataru.aoyama@sony.com>
Reviewed-by: Daniel Palmer <daniel.palmer@sony.com>
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
2022-04-04 12:08:51 +09:00
.travis_cmd_wrapper.pl exfat: add travis-CI build and test support 2020-02-03 22:43:47 +09:00
.travis_get_mainline_kernel exfat: add travis-CI build and test support 2020-02-03 22:43:47 +09:00
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: allow access to paths with trailing dots 2022-03-18 22:24:29 +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 exfat: initial commit 2020-02-03 21:47:19 +09:00
Makefile exfat: fix typo in Makefile 2021-10-14 22:24:23 -07:00
misc.c exfat: fix missing REQ_SYNC in exfat_update_bhs() 2021-12-21 21:47:07 +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 exfat: fix typo 2020-02-10 21:35:58 +09:00
super.c exfat: do not clear VolumeDirty in writeback 2022-03-29 16:44:49 +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