def majorminor(self):
        """A string suitable for using as a pseudo-unique ID in kickstart."""
        if not self._majorminor:
            # If this is a device-mapper device, we have to get the DM node and
            # build the sysfs path from that.
            try:
                device = dm_node_from_name(os.path.basename(self.device))
            except DMError:
                device = self.device

            try:
                sysfs_path = get_sysfs_path_by_name(device)
            except RuntimeError:
                raise StorageError("DeviceFormat.majorminor: "
                                   "can not get majorminor for '%s'" % device)
            dev = udev_get_device(sysfs_path[4:])

            self._majorminor = "%03d%03d" %\
                (udev_device_get_major(dev), udev_device_get_minor(dev))
        return self._majorminor
    def majorminor(self):
        """A string suitable for using as a pseudo-unique ID in kickstart."""
        if not self._majorminor:
            # If this is a device-mapper device, we have to get the DM node and
            # build the sysfs path from that.
            try:
                device = dm_node_from_name(os.path.basename(self.device))
            except DMError:
                device = self.device

            try:
                sysfs_path = get_sysfs_path_by_name(device)
            except RuntimeError:
                raise StorageError("DeviceFormat.majorminor: "
                                   "can not get majorminor for '%s'" % device)
            dev = udev_get_device(sysfs_path[4:])

            self._majorminor = "%03d%03d" %\
                (udev_device_get_major(dev), udev_device_get_minor(dev))
        return self._majorminor
Exemplo n.º 3
0
    def notifyKernel(self):
        log_method_call(self, device=self.device,
                        type=self.type)
        if not self.device:
            return

        if self.device.startswith("/dev/mapper/"):
            try:
                name = dm_node_from_name(os.path.basename(self.device))
            except DMError:
                log.warning("failed to get dm node for %s" % self.device)
                return
        else:
            name = self.device

        path = get_sysfs_path_by_name(name)
        try:
            notify_kernel(path, action="change")
        except (ValueError, IOError) as e:
            log.warning("failed to notify kernel of change: %s" % e)
    def notifyKernel(self):
        log_method_call(self, device=self.device, type=self.type)
        if not self.device:
            return

        if self.device.startswith("/dev/mapper/"):
            try:
                name = dm_node_from_name(os.path.basename(self.device))
            except Exception, e:
                log.warning("failed to get dm node for %s" % self.device)
                return
        else:
            name = self.device

        path = get_sysfs_path_by_name(name)
        try:
            notify_kernel(path, action="change")
        except Exception, e:
            log.warning("failed to notify kernel of change: %s" % e)

    def cacheMajorminor(self):
        """ Cache the value of self.majorminor.

            Once a device node of this format's device disappears (for instance
            after a teardown), it is no longer possible to figure out the value
            of self.majorminor pseudo-unique string. Call this method before
            that happens for caching this.
        """
        self._majorminor = None
        try:
    def notifyKernel(self):
        log_method_call(self, device=self.device,
                        type=self.type)
        if not self.device:
            return

        if self.device.startswith("/dev/mapper/"):
            try:
                name = dm_node_from_name(os.path.basename(self.device))
            except Exception, e:
                log.warning("failed to get dm node for %s" % self.device)
                return
        else:
            name = self.device

        path = get_sysfs_path_by_name(name)
        try:
            notify_kernel(path, action="change")
        except Exception, e:
            log.warning("failed to notify kernel of change: %s" % e)

    def cacheMajorminor(self):
        """ Cache the value of self.majorminor.

            Once a device node of this format's device disappears (for instance
            after a teardown), it is no longer possible to figure out the value
            of self.majorminor pseudo-unique string. Call this method before
            that happens for caching this.
        """
        self._majorminor = None
        try: