From: FUJITA Tomonori <tomof@acm.org>
Date: Tue, 5 Feb 2008 06:28:13 +0000 (-0800)
Subject: iommu sg merging: add accessors for segment_boundary_mask in device_dma_parameters()
X-Git-Tag: v2.6.25-rc1~1000
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d22a6966b8029913fac37d078ab2403898d94c63;p=pandora-kernel.git

iommu sg merging: add accessors for segment_boundary_mask in device_dma_parameters()

This adds new accessors for segment_boundary_mask in device_dma_parameters
structure in the same way I did for max_segment_size.  So we can easily change
where to place struct device_dma_parameters in the future.

dma_get_segment boundary returns 0xffffffff if dma_parms in struct device
isn't set up properly.  0xffffffff is the default value used in the block
layer and the scsi mid layer.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Greg KH <greg@kroah.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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