mirror of
https://github.com/torvalds/linux.git
synced 2024-11-23 20:51:44 +00:00
925c86a19b
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>
49 lines
1.7 KiB
Plaintext
49 lines
1.7 KiB
Plaintext
# 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.
|