LXR linux/fs/ntfs/Kconfig

   1# SPDX-License-Identifier: GPL-2.0-only
   2config NTFS_FS
   3        tristate "NTFS file system support"
   4        select NLS
   5        help
   6          NTFS is the file system of Microsoft Windows NT, 2000, XP and 2003.
   7
   8          Saying Y or M here enables read support.  There is partial, but
   9          safe, write support available.  For write support you must also
  10          say Y to "NTFS write support" below.
  11
  12          There are also a number of user-space tools available, called
  13          ntfsprogs.  These include ntfsundelete and ntfsresize, that work
  14          without NTFS support enabled in the kernel.
  15
  16          This is a rewrite from scratch of Linux NTFS support and replaced
  17          the old NTFS code starting with Linux 2.5.11.  A backport to
  18          the Linux 2.4 kernel series is separately available as a patch
  19          from the project web site.
  20
  21          For more information see <file:Documentation/filesystems/ntfs.rst>
  22          and <http://www.linux-ntfs.org/>.
  23
  24          To compile this file system support as a module, choose M here: the
  25          module will be called ntfs.
  26
  27          If you are not using Windows NT, 2000, XP or 2003 in addition to
  28          Linux on your computer it is safe to say N.
  29
  30config NTFS_DEBUG
  31        bool "NTFS debugging support"
  32        depends on NTFS_FS
  33        help
  34          If you are experiencing any problems with the NTFS file system, say
  35          Y here.  This will result in additional consistency checks to be
  36          performed by the driver as well as additional debugging messages to
  37          be written to the system log.  Note that debugging messages are
  38          disabled by default.  To enable them, supply the option debug_msgs=1
  39          at the kernel command line when booting the kernel or as an option
  40          to insmod when loading the ntfs module.  Once the driver is active,
  41          you can enable debugging messages by doing (as root):
  42          echo 1 > /proc/sys/fs/ntfs-debug
  43          Replacing the "1" with "0" would disable debug messages.
  44
  45          If you leave debugging messages disabled, this results in little
  46          overhead, but enabling debug messages results in very significant
  47          slowdown of the system.
  48
  49          When reporting bugs, please try to have available a full dump of
  50          debugging messages while the misbehaviour was occurring.
  51
  52config NTFS_RW
  53        bool "NTFS write support"
  54        depends on NTFS_FS
  55        help
  56          This enables the partial, but safe, write support in the NTFS driver.
  57
  58          The only supported operation is overwriting existing files, without
  59          changing the file length.  No file or directory creation, deletion or
  60          renaming is possible.  Note only non-resident files can be written to
  61          so you may find that some very small files (<500 bytes or so) cannot
  62          be written to.
  63
  64          While we cannot guarantee that it will not damage any data, we have
  65          so far not received a single report where the driver would have
  66          damaged someones data so we assume it is perfectly safe to use.
  67
  68          Note:  While write support is safe in this version (a rewrite from
  69          scratch of the NTFS support), it should be noted that the old NTFS
  70          write support, included in Linux 2.5.10 and before (since 1997),
  71          is not safe.
  72
  73          This is currently useful with TopologiLinux.  TopologiLinux is run
  74          on top of any DOS/Microsoft Windows system without partitioning your
  75          hard disk.  Unlike other Linux distributions TopologiLinux does not
  76          need its own partition.  For more information see
  77          <http://topologi-linux.sourceforge.net/>
  78
  79          It is perfectly safe to say N here.
  80