tree 84b6e574a4d913dd2abe59f052b5848424e4ce38
parent 4280e3126f641898f0ed1a931645373d3489e2a6
author FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> 1228166041 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1228190124 -0800

DMA-API.txt: fix description of pci_map_sg/dma_map_sg scatterlists handling

- pci_map_sg/dma_map_sg are used with a scatter gather list that doesn't
  come from the block layer (e.g.  some network drivers do).

- how IOMMUs merge adjacent elements of the scatter/gather list is
  independent of how the block layer determines sees elements.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Tejun Heo <htejun@gmail.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>