def notifyKernel(self):
if not self.device:
return
if self.device.startswith("/dev/mapper/"):
try:
name = devicemapper.dm_node_from_name(os.path.basename(self.device))
except Exception, e:
ctx.logger.warning("failed to get dm node for %s" % self.device)
return
def updateSysfsPath(self):
""" Update this device's sysfs path. """
if not self.parents:
self.sysfsPath = ''
elif self.parents[0]._devDir == "/dev/mapper":
dm_node = devicemapper.dm_node_from_name(self.name)
path = os.path.join("/sys", self.sysfsBlockDir, dm_node)
self.sysfsPath = os.path.realpath(path)[4:]
else:
Device.updateSysfsPath(self)
def notifyKernel(self):
if not self.device:
return
if self.device.startswith("/dev/mapper/"):
try:
name = devicemapper.dm_node_from_name(
os.path.basename(self.device))
except Exception, e:
ctx.logger.warning("failed to get dm node for %s" %
self.device)
return
def updateSysfsPath(self):
""" Update this device's sysfs path. """
if not self.parents:
self.sysfsPath = ''
elif self.parents[0]._devDir == "/dev/mapper":
dm_node = devicemapper.dm_node_from_name(self.name)
path = os.path.join("/sys", self.sysfsBlockDir, dm_node)
self.sysfsPath = os.path.realpath(path)[4:]
else:
Device.updateSysfsPath(self)
def swap_status(device):
alt_dev = None
if device.startswith("/dev/mapper/"):
# get the real device node for device-mapper devices since the ones
# with meaningful names are just symlinks
try:
alt_dev = "/dev/%s" % devicemapper.dm_node_from_name(device.split("/")[-1])
except devicemapper.DeviceMapperError:
alt_dev = None
lines = open("/proc/swaps").readlines()
status = False
for line in lines:
if not line.strip():
continue
swap_dev = line.split()[0]
if swap_dev in [device, alt_dev]:
status = True
break
return status
def swap_status(device):
alt_dev = None
if device.startswith("/dev/mapper/"):
# get the real device node for device-mapper devices since the ones
# with meaningful names are just symlinks
try:
alt_dev = "/dev/%s" % devicemapper.dm_node_from_name(
device.split("/")[-1])
except devicemapper.DeviceMapperError:
alt_dev = None
lines = open("/proc/swaps").readlines()
status = False
for line in lines:
if not line.strip():
continue
swap_dev = line.split()[0]
if swap_dev in [device, alt_dev]:
status = True
break
return status
def getDMNode(self):
""" Return the dm-X (eg: dm-0) device node for this device. """
if not self.exists:
raise DeviceError("device has not been created", self.name)
return devicemapper.dm_node_from_name(self.name)
def getDMNode(self):
""" Return the dm-X (eg: dm-0) device node for this device. """
if not self.exists:
raise DeviceMapperError("device has not been created", self.name)
return devicemapper.dm_node_from_name(self.name)