[patch 4/4] libata: expose AN to user space

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From: Kristen Carlson Accardi <kristen.c.accardi@xxxxxxxxx>

If Asynchronous Notification of media change events is supported, pass that
information up to the SCSI layer.

Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@xxxxxxxxx>
Cc: Jeff Garzik <jeff@xxxxxxxxxx>
Cc: Tejun Heo <htejun@xxxxxxxxx>
Cc: James Bottomley <James.Bottomley@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 drivers/ata/libata-scsi.c |    3 +++
 1 file changed, 3 insertions(+)

diff -puN drivers/ata/libata-scsi.c~libata-expose-an-to-user-space drivers/ata/libata-scsi.c
--- a/drivers/ata/libata-scsi.c~libata-expose-an-to-user-space
+++ a/drivers/ata/libata-scsi.c
@@ -773,6 +773,9 @@ static void ata_scsi_dev_config(struct s
 		blk_queue_max_hw_segments(q, q->max_hw_segments - 1);
 	}
 
+	if (dev->flags & ATA_DFLAG_AN)
+		sdev->media_change_notify = 1;
+
 	if (dev->flags & ATA_DFLAG_NCQ) {
 		int depth;
 
_
-
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