tree 5a79187b309cc1a2115a94bc7927c85dd3c67ac9
parent 0c95fdc59640824d7e0b017be295fb912ceef4ab
author FUJITA Tomonori <tomof@acm.org> 1202192887 -0800
committer Linus Torvalds <torvalds@woody.linux-foundation.org> 1202233451 -0800

iommu sg: add IOMMU helper functions for the free area management

This adds IOMMU helper functions for the free area management.  These
functions take care of LLD's segment boundary limit for IOMMUs.  They would be
useful for IOMMUs that use bitmap for the free area management.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.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>