On Fri, Jun 18, 2010 at 01:38:02PM -0500, Ryan Harper wrote: > Create a new attribute for virtio-blk devices that will fetch the serial number > of the block device. This attribute can be used by udev to create disk/by-id > symlinks for devices that don't have a UUID (filesystem) associated with them. > > ATA_IDENTIFY strings are special in that they can be up to 20 chars long > and aren't required to be NULL-terminated. The buffer is also zero-padded > meaning that if the serial is 19 chars or less that we get a NULL terminated > string. When copying this value into a string buffer, we must be careful to > copy up to the NULL (if it present) and only 20 if it is longer and not to > attempt to NULL terminate; this isn't needed. Why is this virtio-blk specific? In a later mail you mention you want to use it for udev. So please export this from scsi/libata as well and we have one proper interface that we can use for all devices. _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/virtualization
