On 08/02/2012 07:09 AM, Daniel P. Berrange wrote:
From: "Daniel P. Berrange" <berrange@redhat.com>
Both LVM volumes and SCSI LUNs have a globally unique identifier associated with them. It is useful to be able to query this identifier to then perform disk locking, rather than try to figure out a stable pathname. --- src/util/storage_file.c | 93 +++++++++++++++++++++++++++++++++++++++++++++++++ src/util/storage_file.h | 3 ++ 2 files changed, 96 insertions(+)
+#ifdef HAVE_UDEV +const char *virStorageFileGetSCSIKey(const char *path) +{ + char *key = NULL; + virCommandPtr cmd = virCommandNewArgList( + "/lib/udev/scsi_id",
Are we okay hard-coding the name of this utility, or should it be learned during configure? At any rate, changing that can be an incremental improvement later. ACK. -- Eric Blake eblake@redhat.com +1-919-301-3266 Libvirt virtualization library http://libvirt.org