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libata: set queue SSD flag for SSD devices

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SSD devices should give an RPM setting of 1 in word 217 of the ID
page. If we see such a device, tell the block layer about it.

Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Jens Axboe 2008-09-24 13:05:10 +02:00
commit 8bff7c6b0f
2 changed files with 10 additions and 0 deletions
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4
drivers/ata/libata-scsi.c
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@ -977,6 +977,10 @@ static int ata_scsi_dev_config(struct scsi_device *sdev,
blk_queue_dma_drain(q, atapi_drain_needed, buf, ATAPI_MAX_DRAIN);
} else {
if (ata_id_is_ssd(dev->id))
queue_flag_set_unlocked(QUEUE_FLAG_NONROT,
sdev->request_queue);
/* ATA devices must be sector aligned */
blk_queue_update_dma_alignment(sdev->request_queue,
ATA_SECT_SIZE - 1);