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(parent: 65b32a5) | patch
block: Fix topology stacking for data and discard alignment
authorMartin K. Petersen <martin.petersen@oracle.com>
Mon, 21 Dec 2009 14:55:51 +0000 (15:55 +0100)
committerJens Axboe <jens.axboe@oracle.com>
Mon, 21 Dec 2009 14:55:51 +0000 (15:55 +0100)
commit9504e0864b58b4a304820dcf3755f1da80d5e72f
tree1e5bc5e7b2c57b343fab13709178be3aff6f477etree | snapshot
parent65b32a573eefa1cdd3cbe5ea59326308e6c3b9adcommit | diff
block: Fix topology stacking for data and discard alignment

The stacking code incorrectly scaled up the data offset in some cases
causing misaligned devices to report alignment.  Rewrite the stacking
algorithm to remedy this and apply the same alignment principles to the
discard handling.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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