hor Martin K. Petersen <martin.petersen@oracle.com> 1243093417 -0400
committer James Bottomley <James.Bottomley@HansenPartnership.com> 1245599557 -0500

sd: Physical block size and alignment support

Extract physical block size and lowest aligned LBA from READ
CAPACITY(16) response and adjust queue parameters.

Report physical block size and alignment when applicable.

[jejb: fix up trailing whitespace]
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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