sata_nv: revert use of notifiers for now
Commit 721449bf added support for using the ADMA notifier bits to determine which commands to check for completion. However there have been reports that this causes command timeouts in certain cases. This is still being investigated. In addition, apparently the notifiers won't work if ADMA is disabled on the other port as a result of an ATAPI device being connected, and we don't handle this case properly. For now, just restore the previous behavior of checking all active commands to see if they are complete, without relying on the notifiers. Signed-off-by: NRobert Hancock <hancockr@shaw.ca> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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