lkml.org 
[lkml]   [2007]   [Oct]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v4 2/2] libata: Utilize new SCSI event infrastructure
Date
An end to CD-ROM polling (if you have a device that supports AN)...
hooray!

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
---
drivers/ata/libata-scsi.c | 12 ++++++++----
1 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index f752edd..e6d5627 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -773,6 +773,9 @@ static void ata_scsi_dev_config(struct scsi_device *sdev,
blk_queue_max_hw_segments(q, q->max_hw_segments - 1);
}

+ if (dev->flags & ATA_DFLAG_AN)
+ set_bit(SDEV_EVT_MEDIA_CHANGE, sdev->supported_events);
+
if (dev->flags & ATA_DFLAG_NCQ) {
int depth;

@@ -3225,10 +3228,11 @@ static void ata_scsi_handle_link_detach(struct ata_link *link)
*/
void ata_scsi_media_change_notify(struct ata_device *dev)
{
-#ifdef OTHER_AN_PATCHES_HAVE_BEEN_APPLIED
- if (dev->sdev)
- scsi_device_event_notify(dev->sdev, SDEV_MEDIA_CHANGE);
-#endif
+ if (dev->sdev) {
+ DECLARE_BITMAP(map, SDEV_EVT_MAXBITS);
+ __set_bit(SDEV_EVT_MEDIA_CHANGE, map);
+ sdev_evt_notify(dev->sdev, map);
+ }
}

/**
--
1.5.2.4
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-10-29 17:37    [W:0.056 / U:0.628 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site