blkfront: Remove obsolete info->users (acfca3c6) · Commits · 戴 / test

This is just bd_openers, protected by the bd_mutex. Signed-off-by:

drivers/block/xen-blkfront.c

+3 −6

Original line number	Diff line number	Diff line
		@@ -1168,9 +1168,6 @@ static int blkif_open(struct block_device *bdev, fmode_t mode)

		mutex_unlock(&info->mutex);

		if (!err)
		++info->users;

		out:
		unlock_kernel();
		return err;
		@@ -1183,12 +1180,13 @@ static int blkif_release(struct gendisk *disk, fmode_t mode)
		struct xenbus_device *xbdev;

		lock_kernel();
		if (--info->users)
		goto out;

		bdev = bdget_disk(disk, 0);
		bdput(bdev);

		if (bdev->bd_openers)
		goto out;

		/*
		* Check if we have been instructed to close. We will have
		* deferred this request, because the bdev was still open.
		@@ -1212,7 +1210,6 @@ static int blkif_release(struct gendisk *disk, fmode_t mode)
		kfree(info);
		}

		out:
		unlock_kernel();
		return 0;
		}