From 5b03a1b140e13a28ff6be1526892a9dc538ddef6 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 9 Mar 2011 19:54:27 +0100 Subject: ide: Convert to bdops->check_events() Convert ->media_changed() to the new ->check_events() method. The conversion is mostly mechanical. The only notable change is that cdrom now doesn't generate any event if @slot_nr isn't CDSL_CURRENT. It used to return -EINVAL which would be treated as media changed. As media changer isn't supported anyway, this doesn't make any difference. This makes ide emit the standard disk events and allows kernel event polling. Currently, only MEDIA_CHANGE event is implemented. Adding support for EJECT_REQUEST shouldn't be difficult; however, given that ide driver is already deprecated, it probably is best to leave it alone. Signed-off-by: Tejun Heo Acked-by: Jens Axboe Cc: Kay Sievers Cc: "David S. Miller" Cc: linux-ide@vger.kernel.org --- drivers/ide/ide-gd.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) (limited to 'drivers/ide/ide-gd.c') diff --git a/drivers/ide/ide-gd.c b/drivers/ide/ide-gd.c index 35c4b43585e3..c4ffd4888939 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 +298,10 @@ static int ide_gd_media_changed(struct gendisk *disk) return 0; } - ret = !!(drive->dev_flags & IDE_DFLAG_MEDIA_CHANGED); + 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 +319,7 @@ 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 +341,7 @@ 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 }; @@ -412,6 +413,7 @@ static int ide_gd_probe(ide_drive_t *drive) if (drive->dev_flags & IDE_DFLAG_REMOVABLE) g->flags = GENHD_FL_REMOVABLE; g->fops = &ide_gd_ops; + g->events = DISK_EVENT_MEDIA_CHANGE; add_disk(g); return 0; -- cgit v1.2.3