From 0739476294f6925b01ad12b1b198f85b41bc657d Mon Sep 17 00:00:00 2001 From: Samuel Mendoza-Jonas Date: Thu, 7 Apr 2016 15:29:02 +1000 Subject: discover/devmapper: Read device size from sysfs If udev doesn't export the ID_PART_ENTRY_SIZE variable for a device we skip creating a snapshot for it. However in most cases the sysfs attribute which udev reads to find ID_PART_ENTRY_SIZE is still available. Therefore if we don't have access to ID_PART_ENTRY_SIZE try to find the size in sysfs directly. This allows us to create snapshots for devices which often don't have this udev variable set, such as software raid (md) devices and NVMe devices. Signed-off-by: Samuel Mendoza-Jonas --- discover/udev.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'discover/udev.c') diff --git a/discover/udev.c b/discover/udev.c index 537ef10..23057bf 100644 --- a/discover/udev.c +++ b/discover/udev.c @@ -176,10 +176,9 @@ static int udev_handle_block_add(struct pb_udev *udev, struct udev_device *dev, udev_setup_device_params(dev, ddev); - /* Create a snapshot for all disks, unless it is an assembled RAID array */ + /* Create a snapshot for all disk devices */ if ((ddev->device->type == DEVICE_TYPE_DISK || - ddev->device->type == DEVICE_TYPE_USB) && - !udev_device_get_property_value(dev, "MD_LEVEL")) + ddev->device->type == DEVICE_TYPE_USB)) devmapper_init_snapshot(udev->handler, ddev); device_handler_discover(udev->handler, ddev); -- cgit v1.2.1