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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
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config NTFS3_FS
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tristate "NTFS Read-Write file system support"
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select BUFFER_HEAD
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select NLS
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select LEGACY_DIRECT_IO
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help
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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,
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write, journal replaying, sparse/compressed files support).
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File system type to use on mount is "ntfs3". Module name (M option)
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is also "ntfs3".
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Documentation: <file:Documentation/filesystems/ntfs3.rst>
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config NTFS3_64BIT_CLUSTER
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bool "64 bits per NTFS clusters"
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depends on NTFS3_FS && 64BIT
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help
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Windows implementation of ntfs.sys uses 32 bits per clusters.
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If activated 64 bits per clusters you will be able to use 4k cluster
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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
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bool "activate support of external compressions lzx/xpress"
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depends on NTFS3_FS
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help
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In Windows 10 one can use command "compact" to compress any files.
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4 possible variants of compression are: xpress4k, xpress8k, xpress16k and lzx.
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If activated you will be able to read such files correctly.
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It is recommended to say Y here.
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config NTFS3_FS_POSIX_ACL
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bool "NTFS POSIX Access Control Lists"
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depends on NTFS3_FS
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select FS_POSIX_ACL
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help
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POSIX Access Control Lists (ACLs) support additional access rights
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for users and groups beyond the standard owner/group/world scheme,
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and this option selects support for ACLs specifically for ntfs
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filesystems.
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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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