linux/fs/ntfs3/Kconfig
Christoph Hellwig 925c86a19b fs: add CONFIG_BUFFER_HEAD
Add a new config option that controls building the buffer_head code, and
select it from all file systems and stacking drivers that need it.

For the block device nodes and alternative iomap based buffered I/O path
is provided when buffer_head support is not enabled, and iomap needs a
a small tweak to define the IOMAP_F_BUFFER_HEAD flag to 0 to not call
into the buffer_head code when it doesn't exist.

Otherwise this is just Kconfig and ifdef changes.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20230801172201.1923299-7-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-08-02 09:13:09 -06:00

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# SPDX-License-Identifier: GPL-2.0-only
config NTFS3_FS
tristate "NTFS Read-Write file system support"
select BUFFER_HEAD
select NLS
select LEGACY_DIRECT_IO
help
Windows OS native file system (NTFS) support up to NTFS version 3.1.
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".
Documentation: <file:Documentation/filesystems/ntfs3.rst>
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.
It is recommended to say N here.
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.
If activated you will be able to read such files correctly.
It is recommended to say Y here.
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.
If you don't know what Access Control Lists are, say N.