From: Horst Hummel The open_count is increased for every opener, that includes the blkdev_get in dasd_scan_partitions. This tampers the open_count in BIODASDINFO. Hide the internal open from user-space. Signed-off-by: Horst Hummel Signed-off-by: Martin Schwidefsky Signed-off-by: Heiko Carstens Signed-off-by: Andrew Morton --- drivers/s390/block/dasd_ioctl.c | 9 ++++++++- 1 files changed, 8 insertions(+), 1 deletion(-) diff -puN drivers/s390/block/dasd_ioctl.c~s390-dasd-open-counter drivers/s390/block/dasd_ioctl.c --- devel/drivers/s390/block/dasd_ioctl.c~s390-dasd-open-counter 2006-01-18 20:11:36.000000000 -0800 +++ devel-akpm/drivers/s390/block/dasd_ioctl.c 2006-01-18 20:11:36.000000000 -0800 @@ -344,8 +344,15 @@ dasd_ioctl_information(struct block_devi dasd_info->cu_model = cdev->id.cu_model; dasd_info->dev_type = cdev->id.dev_type; dasd_info->dev_model = cdev->id.dev_model; - dasd_info->open_count = atomic_read(&device->open_count); dasd_info->status = device->state; + /* + * The open_count is increased for every opener, that includes + * the blkdev_get in dasd_scan_partitions. + * This must be hidden from user-space. + */ + dasd_info->open_count = atomic_read(&device->open_count); + if (!device->bdev) + dasd_info->open_count++; /* * check if device is really formatted _