fs: initial qnx6fs addition

Adds support for qnx6fs readonly support to the linux kernel.

* Mount option
  The option mmi_fs can be used to mount Harman Becker/Audi MMI 3G
  HDD qnx6fs filesystems.

* Documentation
  A high level filesystem stucture description can be found in the
  Documentation/filesystems directory. (qnx6.txt)

* Additional features
  - Active (stable) superblock selection
  - Superblock checksum check (enforced)
  - Supports mount of qnx6 filesystems with to host different endianess
  - Automatic endianess detection
  - Longfilename support (with non-enfocing crc check)
  - All blocksizes (512, 1024, 2048 and 4096 supported)

Signed-off-by: Kai Bankett <chaosman@ontika.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 26 insertions, 0 deletions

diff --git a/fs/qnx6/Kconfig b/fs/qnx6/Kconfig
new file mode 100644
index 000000000000..edbba5c17cc8
--- /dev/null
+++ b/fs/qnx6/Kconfig
@@ -0,0 +1,26 @@
+config QNX6FS_FS
+	tristate "QNX6 file system support (read only)"
+	depends on BLOCK && CRC32
+	help
+	  This is the file system used by the real-time operating systems
+	  QNX 6 (also called QNX RTP).
+	  Further information is available at <http://www.qnx.com/>.
+	  Say Y if you intend to mount QNX hard disks or floppies formatted
+          with a mkqnx6fs.
+	  However, keep in mind that this currently is a readonly driver!
+
+	  To compile this file system support as a module, choose M here: the
+	  module will be called qnx6.
+
+	  If you don't know whether you need it, then you don't need it:
+	  answer N.
+
+config QNX6FS_DEBUG
+	bool "QNX6 debugging information"
+	depends on QNX6FS_FS
+	help
+	  Turns on extended debugging output.
+
+	  If you are not a developer working on the QNX6FS, you probably don't
+	  want this:
+	  answer N.