blkfront: Remove obsolete info->users
This is just bd_openers, protected by the bd_mutex.
Signed-off-by: Daniel Stodden <daniel.stodden@citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 9c5a25a..b01167b 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -96,12 +96,6 @@
unsigned long shadow_free;
int feature_barrier;
int is_ready;
-
- /**
- * The number of people holding this device open. We won't allow a
- * hot-unplug unless this is 0.
- */
- int users;
};
static DEFINE_SPINLOCK(blkif_io_lock);
@@ -977,7 +971,7 @@
mutex_lock(&bdev->bd_mutex);
- if (info->users) {
+ if (bdev->bd_openers) {
xenbus_dev_error(xbdev, -EBUSY,
"Device in use; refusing to close");
xenbus_switch_state(xbdev, XenbusStateClosing);
@@ -1126,7 +1120,7 @@
mutex_lock(&bdev->bd_mutex);
info = disk->private_data;
- if (info && !info->users) {
+ if (info && !bdev->bd_openers) {
xlvbd_release_gendisk(info);
disk->private_data = NULL;
kfree(info);
