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fs/ntfs3: Add Kconfig, Makefile and doc
This adds Kconfig, Makefile and doc Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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.. SPDX-License-Identifier: GPL-2.0 | ||
===== | ||
NTFS3 | ||
===== | ||
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Summary and Features | ||
==================== | ||
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NTFS3 is fully functional NTFS Read-Write driver. The driver works with | ||
NTFS versions up to 3.1, normal/compressed/sparse files | ||
and journal replaying. File system type to use on mount is 'ntfs3'. | ||
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- This driver implements NTFS read/write support for normal, sparse and | ||
compressed files. | ||
- Supports native journal replaying; | ||
- Supports extended attributes | ||
Predefined extended attributes: | ||
- 'system.ntfs_security' gets/sets security | ||
descriptor (SECURITY_DESCRIPTOR_RELATIVE) | ||
- 'system.ntfs_attrib' gets/sets ntfs file/dir attributes. | ||
Note: applied to empty files, this allows to switch type between | ||
sparse(0x200), compressed(0x800) and normal; | ||
- Supports NFS export of mounted NTFS volumes. | ||
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Mount Options | ||
============= | ||
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The list below describes mount options supported by NTFS3 driver in addition to | ||
generic ones. | ||
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=============================================================================== | ||
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nls=name This option informs the driver how to interpret path | ||
strings and translate them to Unicode and back. If | ||
this option is not set, the default codepage will be | ||
used (CONFIG_NLS_DEFAULT). | ||
Examples: | ||
'nls=utf8' | ||
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uid= | ||
gid= | ||
umask= Controls the default permissions for files/directories created | ||
after the NTFS volume is mounted. | ||
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fmask= | ||
dmask= Instead of specifying umask which applies both to | ||
files and directories, fmask applies only to files and | ||
dmask only to directories. | ||
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nohidden Files with the Windows-specific HIDDEN (FILE_ATTRIBUTE_HIDDEN) | ||
attribute will not be shown under Linux. | ||
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sys_immutable Files with the Windows-specific SYSTEM | ||
(FILE_ATTRIBUTE_SYSTEM) attribute will be marked as system | ||
immutable files. | ||
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discard Enable support of the TRIM command for improved performance | ||
on delete operations, which is recommended for use with the | ||
solid-state drives (SSD). | ||
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force Forces the driver to mount partitions even if 'dirty' flag | ||
(volume dirty) is set. Not recommended for use. | ||
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sparse Create new files as "sparse". | ||
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showmeta Use this parameter to show all meta-files (System Files) on | ||
a mounted NTFS partition. | ||
By default, all meta-files are hidden. | ||
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prealloc Preallocate space for files excessively when file size is | ||
increasing on writes. Decreases fragmentation in case of | ||
parallel write operations to different files. | ||
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no_acs_rules "No access rules" mount option sets access rights for | ||
files/folders to 777 and owner/group to root. This mount | ||
option absorbs all other permissions: | ||
- permissions change for files/folders will be reported | ||
as successful, but they will remain 777; | ||
- owner/group change will be reported as successful, but | ||
they will stay as root | ||
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acl Support POSIX ACLs (Access Control Lists). Effective if | ||
supported by Kernel. Not to be confused with NTFS ACLs. | ||
The option specified as acl enables support for POSIX ACLs. | ||
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noatime All files and directories will not update their last access | ||
time attribute if a partition is mounted with this parameter. | ||
This option can speed up file system operation. | ||
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=============================================================================== | ||
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ToDo list | ||
========= | ||
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- Full journaling support (currently journal replaying is supported) over JBD. | ||
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References | ||
========== | ||
https://www.paragon-software.com/home/ntfs-linux-professional/ | ||
- Commercial version of the NTFS driver for Linux. | ||
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almaz.alexandrovich@paragon-software.com | ||
- Direct e-mail address for feedback and requests on the NTFS3 implementation. |
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# SPDX-License-Identifier: GPL-2.0-only | ||
config NTFS3_FS | ||
tristate "NTFS Read-Write file system support" | ||
select NLS | ||
help | ||
Windows OS native file system (NTFS) support up to NTFS version 3.1. | ||
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Y or M enables the NTFS3 driver with full features enabled (read, | ||
write, journal replaying, sparse/compressed files support). | ||
File system type to use on mount is "ntfs3". Module name (M option) | ||
is also "ntfs3". | ||
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Documentation: <file:Documentation/filesystems/ntfs3.rst> | ||
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config NTFS3_64BIT_CLUSTER | ||
bool "64 bits per NTFS clusters" | ||
depends on NTFS3_FS && 64BIT | ||
help | ||
Windows implementation of ntfs.sys uses 32 bits per clusters. | ||
If activated 64 bits per clusters you will be able to use 4k cluster | ||
for 16T+ volumes. Windows will not be able to mount such volumes. | ||
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It is recommended to say N here. | ||
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config NTFS3_LZX_XPRESS | ||
bool "activate support of external compressions lzx/xpress" | ||
depends on NTFS3_FS | ||
help | ||
In Windows 10 one can use command "compact" to compress any files. | ||
4 possible variants of compression are: xpress4k, xpress8k, xpress16k and lzx. | ||
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It is recommended to say Y here. | ||
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config NTFS3_FS_POSIX_ACL | ||
bool "NTFS POSIX Access Control Lists" | ||
depends on NTFS3_FS | ||
select FS_POSIX_ACL | ||
help | ||
POSIX Access Control Lists (ACLs) support additional access rights | ||
for users and groups beyond the standard owner/group/world scheme, | ||
and this option selects support for ACLs specifically for ntfs | ||
filesystems. | ||
NOTE: this is linux only feature. Windows will ignore these ACLs. | ||
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If you don't know what Access Control Lists are, say N |
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# SPDX-License-Identifier: GPL-2.0 | ||
# | ||
# Makefile for the ntfs3 filesystem support. | ||
# | ||
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obj-$(CONFIG_NTFS3_FS) += ntfs3.o | ||
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ntfs3-y := attrib.o \ | ||
attrlist.o \ | ||
bitfunc.o \ | ||
bitmap.o \ | ||
dir.o \ | ||
fsntfs.o \ | ||
frecord.o \ | ||
file.o \ | ||
fslog.o \ | ||
inode.o \ | ||
index.o \ | ||
lznt.o \ | ||
namei.o \ | ||
record.o \ | ||
run.o \ | ||
super.o \ | ||
upcase.o \ | ||
xattr.o | ||
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ntfs3-$(CONFIG_NTFS3_LZX_XPRESS) += $(addprefix lib/,\ | ||
decompress_common.o \ | ||
lzx_decompress.o \ | ||
xpress_decompress.o \ | ||
) |