tree 1590c87323c9f9235945ba03627fd1ce0b731a1f
parent 9ef3e4a4527e1f65b8776287c6d4fd1fca5ba98f
author FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> 1180155843 +0900
committer James Bottomley <jejb@mulgrave.il.steeleye.com> 1180214999 -0500

[SCSI] scsi_lib: add scatter/gather data buffer accessors

This adds a set of accessors for the scsi data buffer. This is in
preparation for chaining sg lists and bidirectional requests (and
possibly, the mid-layer dma mapping).

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>