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path: root/drivers/ide/ide-gd.c
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Diffstat (limited to 'drivers/ide/ide-gd.c')
-rw-r--r--drivers/ide/ide-gd.c19
1 files changed, 13 insertions, 6 deletions
diff --git a/drivers/ide/ide-gd.c b/drivers/ide/ide-gd.c
index 35c4b43585e..70ea8763567 100644
--- a/drivers/ide/ide-gd.c
+++ b/drivers/ide/ide-gd.c
@@ -285,11 +285,12 @@ static int ide_gd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
return 0;
}
-static int ide_gd_media_changed(struct gendisk *disk)
+static unsigned int ide_gd_check_events(struct gendisk *disk,
+ unsigned int clearing)
{
struct ide_disk_obj *idkp = ide_drv_g(disk, ide_disk_obj);
ide_drive_t *drive = idkp->drive;
- int ret;
+ bool ret;
/* do not scan partitions twice if this is a removable device */
if (drive->dev_flags & IDE_DFLAG_ATTACH) {
@@ -297,10 +298,16 @@ static int ide_gd_media_changed(struct gendisk *disk)
return 0;
}
- ret = !!(drive->dev_flags & IDE_DFLAG_MEDIA_CHANGED);
+ /*
+ * The following is used to force revalidation on the first open on
+ * removeable devices, and never gets reported to userland as
+ * genhd->events is 0. This is intended as removeable ide disk
+ * can't really detect MEDIA_CHANGE events.
+ */
+ ret = drive->dev_flags & IDE_DFLAG_MEDIA_CHANGED;
drive->dev_flags &= ~IDE_DFLAG_MEDIA_CHANGED;
- return ret;
+ return ret ? DISK_EVENT_MEDIA_CHANGE : 0;
}
static void ide_gd_unlock_native_capacity(struct gendisk *disk)
@@ -318,7 +325,7 @@ static int ide_gd_revalidate_disk(struct gendisk *disk)
struct ide_disk_obj *idkp = ide_drv_g(disk, ide_disk_obj);
ide_drive_t *drive = idkp->drive;
- if (ide_gd_media_changed(disk))
+ if (ide_gd_check_events(disk, 0))
drive->disk_ops->get_capacity(drive);
set_capacity(disk, ide_gd_capacity(drive));
@@ -340,7 +347,7 @@ static const struct block_device_operations ide_gd_ops = {
.release = ide_gd_release,
.ioctl = ide_gd_ioctl,
.getgeo = ide_gd_getgeo,
- .media_changed = ide_gd_media_changed,
+ .check_events = ide_gd_check_events,
.unlock_native_capacity = ide_gd_unlock_native_capacity,
.revalidate_disk = ide_gd_revalidate_disk
};