blkfront: Klog the unclean release path (d54142c7) · Commits · 戴 / test

drivers/block/xen-blkfront.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -1120,6 +1120,10 @@ static int blkfront_remove(struct xenbus_device *xbdev)
		mutex_lock(&bdev->bd_mutex);
		info = disk->private_data;

		dev_warn(disk_to_dev(disk),
		"%s was hot-unplugged, %d stale handles\n",
		xbdev->nodename, bdev->bd_openers);

		if (info && !bdev->bd_openers) {
		xlvbd_release_gendisk(info);
		disk->private_data = NULL;
		@@ -1191,6 +1195,7 @@ static int blkif_release(struct gendisk *disk, fmode_t mode)

		if (xbdev && xbdev->state == XenbusStateClosing) {
		/* pending switch to state closed */
		dev_info(disk_to_dev(bdev->bd_disk), "releasing disk\n");
		xlvbd_release_gendisk(info);
		xenbus_frontend_closed(info->xbdev);
		}
		@@ -1199,6 +1204,7 @@ static int blkif_release(struct gendisk *disk, fmode_t mode)

		if (!xbdev) {
		/* sudden device removal */
		dev_info(disk_to_dev(bdev->bd_disk), "releasing disk\n");
		xlvbd_release_gendisk(info);
		disk->private_data = NULL;
		kfree(info);