tree b5104116cd40cdd2d06bd1ae555c9558efed6829
parent 814073620a2eb520c8bb38e0038fd1c78011fe21
author Matthew Wilcox <matthew@wil.cx> 1192602687 -0700
committer Linus Torvalds <torvalds@woody.linux-foundation.org> 1192635786 -0700

Update DMA-mapping documentation

A couple of updates haven't considered whether the documentation makes
sense as a whole any more.  Three changes here:

 - Remove the reference to the "DAC Addressing for Address Space Hungry
   Devices" section which was deleted by Jan Beulich.
 - Remove the comment about DMA_24BIT_MASK which became obsolete when
   Tobias Klauser changed the code to actually use DMA_24BIT_MASK.
 - Remove the section "64-bit DMA and DAC cycle support" since it's
   fully covered above, and contains a reference to the section deleted
   by Jan.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>