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| author | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-01-01 10:00:10 -0600 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-01-11 18:29:22 -0600 |
| commit | 465ff3185e0cb76d46137335a4d21d0d9d3ac8a2 (patch) | |
| tree | 171068cd7d99600cd094c2eb72bac712649fd9eb /init | |
| parent | 11c3e689f1c3a73e3af7b0ea767b1b0626da8033 (diff) | |
| download | op-kernel-dev-465ff3185e0cb76d46137335a4d21d0d9d3ac8a2.zip op-kernel-dev-465ff3185e0cb76d46137335a4d21d0d9d3ac8a2.tar.gz | |
[SCSI] relax scsi dma alignment
This patch relaxes the default SCSI DMA alignment from 512 bytes to 4
bytes. I remember from previous discussions that usb and firewire have
sector size alignment requirements, so I upped their alignments in the
respective slave allocs.
The reason for doing this is so that we don't get such a huge amount of
copy overhead in bio_copy_user() for udev. (basically all inquiries it
issues can now be directly mapped).
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'init')
0 files changed, 0 insertions, 0 deletions
