[PATCH 08/16] dac960: Convert to bdops->check_events()

From: Tejun Heo
Date: Wed Mar 09 2011 - 04:18:44 EST


Convert from ->media_changed() to ->check_events().

DAC960 media change notification seems to be one way (once set, never
cleared) and will generate spurious events when polled once the
condition triggers.

Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>
Cc: Jens Axboe <axboe@xxxxxxxxx>
Cc: Kay Sievers <kay.sievers@xxxxxxxx>
---
drivers/block/DAC960.c | 8 +++++---
1 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/block/DAC960.c b/drivers/block/DAC960.c
index 1f286ab..7988210 100644
--- a/drivers/block/DAC960.c
+++ b/drivers/block/DAC960.c
@@ -140,13 +140,14 @@ static int DAC960_getgeo(struct block_device *bdev, struct hd_geometry *geo)
return 0;
}

-static int DAC960_media_changed(struct gendisk *disk)
+static unsigned int DAC960_check_events(struct gendisk *disk,
+ unsigned int clearing)
{
DAC960_Controller_T *p = disk->queue->queuedata;
int drive_nr = (long)disk->private_data;

if (!p->LogicalDriveInitiallyAccessible[drive_nr])
- return 1;
+ return DISK_EVENT_MEDIA_CHANGE;
return 0;
}

@@ -163,7 +164,7 @@ static const struct block_device_operations DAC960_BlockDeviceOperations = {
.owner = THIS_MODULE,
.open = DAC960_open,
.getgeo = DAC960_getgeo,
- .media_changed = DAC960_media_changed,
+ .check_events = DAC960_check_events,
.revalidate_disk = DAC960_revalidate_disk,
};

@@ -2546,6 +2547,7 @@ static bool DAC960_RegisterBlockDevice(DAC960_Controller_T *Controller)
disk->major = MajorNumber;
disk->first_minor = n << DAC960_MaxPartitionsBits;
disk->fops = &DAC960_BlockDeviceOperations;
+ disk->events = DISK_EVENT_MEDIA_CHANGE;
}
/*
Indicate the Block Device Registration completed successfully,
--
1.7.1

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