Right now, tgt-admin looks into /etc/mtab, /proc/swaps etc. to determine if the device it wants to allocate is in use. This is a good way to prevent the user from corrupting filesystems (i.e., mounting the device locally to correct a config file, forgetting to unmount it, and allocating it as a target), but unfortunately, it doesn't check all kinds of "device-in-use" scenarios. The following patches add a full support for detecting "used devices": - used by the system: mounted, swap devices, parts of RAID array, LVM, dm-crypt, etc. - used by userspace, i.e. dd, e2fsck, existing tgtd target etc. For "userspace" tests, lsof is needed. If it's not present, a warning will be shown, informing the user that we can't check reliably if the device is in use. The check can be overridden by using --force command line option or "allow-in-use yes" config option. -- Tomasz Chmielewski http://wpkg.org -- To unsubscribe from this list: send the line "unsubscribe stgt" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html |