Anders Larsen wrote:

  If you remove any code inside the #ifdef CONFIG_QNX4FS_RW we might as well
  remove the option "config QNX4FS_RW" altogether.  It's horribly broken, and
  I don't intend to fix it; while I was thinking about how to properly
  implement write-support, somebody else went away and did it.  As that
  alternative seems to work well and is being actively maintained, I won't try
  to reinvent it.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>