VisionFive2 Linux kernel

ec8f24b7faaf3 (Thomas Gleixner       2019-05-19 13:07:45 +0100  1) # SPDX-License-Identifier: GPL-2.0-only
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300  2) config NTFS_FS
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300  3) 	tristate "NTFS file system support"
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300  4) 	select NLS
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300  5) 	help
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300  6) 	  NTFS is the file system of Microsoft Windows NT, 2000, XP and 2003.
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300  7) 
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300  8) 	  Saying Y or M here enables read support.  There is partial, but
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300  9) 	  safe, write support available.  For write support you must also
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 10) 	  say Y to "NTFS write support" below.
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 11) 
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 12) 	  There are also a number of user-space tools available, called
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 13) 	  ntfsprogs.  These include ntfsundelete and ntfsresize, that work
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 14) 	  without NTFS support enabled in the kernel.
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 15) 
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 16) 	  This is a rewrite from scratch of Linux NTFS support and replaced
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 17) 	  the old NTFS code starting with Linux 2.5.11.  A backport to
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 18) 	  the Linux 2.4 kernel series is separately available as a patch
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 19) 	  from the project web site.
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 20) 
0c1bc6b84525b (Mauro Carvalho Chehab 2020-04-14 18:48:37 +0200 21) 	  For more information see <file:Documentation/filesystems/ntfs.rst>
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 22) 	  and <http://www.linux-ntfs.org/>.
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 23) 
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 24) 	  To compile this file system support as a module, choose M here: the
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 25) 	  module will be called ntfs.
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 26) 
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 27) 	  If you are not using Windows NT, 2000, XP or 2003 in addition to
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 28) 	  Linux on your computer it is safe to say N.
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 29) 
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 30) config NTFS_DEBUG
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 31) 	bool "NTFS debugging support"
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 32) 	depends on NTFS_FS
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 33) 	help
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 34) 	  If you are experiencing any problems with the NTFS file system, say
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 35) 	  Y here.  This will result in additional consistency checks to be
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 36) 	  performed by the driver as well as additional debugging messages to
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 37) 	  be written to the system log.  Note that debugging messages are
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 38) 	  disabled by default.  To enable them, supply the option debug_msgs=1
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 39) 	  at the kernel command line when booting the kernel or as an option
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 40) 	  to insmod when loading the ntfs module.  Once the driver is active,
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 41) 	  you can enable debugging messages by doing (as root):
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 42) 	  echo 1 > /proc/sys/fs/ntfs-debug
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 43) 	  Replacing the "1" with "0" would disable debug messages.
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 44) 
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 45) 	  If you leave debugging messages disabled, this results in little
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 46) 	  overhead, but enabling debug messages results in very significant
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 47) 	  slowdown of the system.
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 48) 
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 49) 	  When reporting bugs, please try to have available a full dump of
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 50) 	  debugging messages while the misbehaviour was occurring.
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 51) 
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 52) config NTFS_RW
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 53) 	bool "NTFS write support"
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 54) 	depends on NTFS_FS
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 55) 	help
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 56) 	  This enables the partial, but safe, write support in the NTFS driver.
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 57) 
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 58) 	  The only supported operation is overwriting existing files, without
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 59) 	  changing the file length.  No file or directory creation, deletion or
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 60) 	  renaming is possible.  Note only non-resident files can be written to
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 61) 	  so you may find that some very small files (<500 bytes or so) cannot
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 62) 	  be written to.
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 63) 
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 64) 	  While we cannot guarantee that it will not damage any data, we have
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 65) 	  so far not received a single report where the driver would have
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 66) 	  damaged someones data so we assume it is perfectly safe to use.
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 67) 
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 68) 	  Note:  While write support is safe in this version (a rewrite from
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 69) 	  scratch of the NTFS support), it should be noted that the old NTFS
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 70) 	  write support, included in Linux 2.5.10 and before (since 1997),
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 71) 	  is not safe.
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 72) 
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 73) 	  This is currently useful with TopologiLinux.  TopologiLinux is run
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 74) 	  on top of any DOS/Microsoft Windows system without partitioning your
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 75) 	  hard disk.  Unlike other Linux distributions TopologiLinux does not
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 76) 	  need its own partition.  For more information see
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 77) 	  <http://topologi-linux.sourceforge.net/>
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 78) 
9d73ac9e8faff (Alexey Dobriyan       2009-01-22 10:39:20 +0300 79) 	  It is perfectly safe to say N here.