The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/fs/ntfs/Kconfig

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

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