On 11/10/2009 05:59 AM, Ales Kozumplik wrote:
> patch created by Masahiro Matsuya (mmatsuya@redhat.com), he claims
> that the change works for him. I have reviewed Masahiro's patch
> carefully for not breaking existing stufff but did not do any tests
> of the new functionality. The BZ lists three new tests cases for the
> QA team.
> ---
> dmraid.py | 4 +-
> fsset.py | 8 +++++-
> iutil.py | 40 +++++++++++++++++++++++++++++++++
> kickstart.py | 46 ++++++++++++++++++++++++++++++-------
> yuminstall.py | 69 ++++++++++++++++++++++++++++++++++++++-------------------
> 5 files changed, 132 insertions(+), 35 deletions(-)
>
> diff --git a/dmraid.py b/dmraid.py
> index 4fb7129..ed05341 100644
> --- a/dmraid.py
> +++ b/dmraid.py
> @@ -82,7 +82,7 @@ class DmDriveCache:
> if self.cache.has_key(obj.name):
> del self.cache[obj.name][obj.name]
> for k,v in self.cache[obj.name].items():
> - log.debug("adding %s to isys cache" % (name,))
> + log.debug("adding %s to isys cache" % (k,))
> isys.cachedDrives[k] = v
> log.debug("removing %s from dm cache" % (obj,))
> del self.cache[obj.name]
> @@ -91,7 +91,7 @@ class DmDriveCache:
> oldname = 'mapper/' + obj.name
> if isys.cachedDrives.has_key(oldname):
> dmNameUpdates[obj.name] = newname
> - self.remove(oldname)
> + self.remove(obj.name)
> # XXX why doesn't setting the property work?
> obj.set_name(newname)
> self.add(obj)
I'd like to see this bugfix in a separate commit with a commit message that
explains why we should be using e.g. obj.name instead of oldname is the right
thing here, so we can figure it out later.
> diff --git a/fsset.py b/fsset.py
> index 771a482..54753a0 100644
> --- a/fsset.py
> +++ b/fsset.py
> @@ -1380,8 +1380,14 @@ class FileSystemSet:
> if entry.mountpoint:
> # use LABEL if the device has a label except for multipath
> # devices and LUKS devices, which always use devname
> + ismpath = False
> + for mpdev in self.anaconda.id.diskset.mpList or []:
> + if not entry.device.getDevice().find(mpdev.get_name()) == -1:
> + ismpath = True
> + break
> +
> if entry.getLabel() and
> - entry.device.getDevice().find('mpath') == -1 and
> + not ismpath and
> not entry.device.crypto:
> device = "LABEL=%s" % (entry.getLabel(),)
> else:
> diff --git a/iutil.py b/iutil.py
> index d221d9c..289f5c7 100644
> --- a/iutil.py
> +++ b/iutil.py
> @@ -490,3 +490,43 @@ def inVmware():
> if "VMware" in out:
> return True
> return False
> +
> +
> +def getScsiDeviceByWwpnLunid(wwpn, lunid):
> + found = 0
> + for tgt in os.listdir('/sys/class/fc_transport'):
> + if tgt[:6] != "target":
> + continue
> + dir= '/sys/class/fc_transport/%s' % tgt
> + f = open('%s/port_name' % dir, "r")
> + tgt_wwpn = f.readline()
> + tgt_wwpn = tgt_wwpn.rstrip("
")
> + if tgt_wwpn.startswith("0x"):
> + tgt_wwpn = tgt_wwpn[2:]
> + tgt_wwpn = tgt_wwpn.upper()
> + f.close()
> + ## check the first match only
> + if tgt_wwpn == wwpn:
> + found = 1
> + break
> +
> + if found == 0:
> + return ""
> +
> + scsi_hctl="%s:%s" % (tgt[6:], lunid)
> +
> + found = 0
> + for tgt in os.listdir('/sys/block'):
> + devf = '/sys/block/%s/device' % tgt
> + if not os.path.exists(devf):
> + continue
> + devf = os.readlink(devf)
> + devf = os.path.basename(devf)
> + if devf == scsi_hctl:
> + found = 1
> + break
> + if found == 0:
> + tgt = ""
> + return tgt
> +
> +
> diff --git a/kickstart.py b/kickstart.py
> index 37b4246..deb46d4 100644
> --- a/kickstart.py
> +++ b/kickstart.py
> @@ -133,6 +133,7 @@ class AnacondaKSHandlers(KickstartHandlers):
> def doBootloader (self, args):
> KickstartHandlers.doBootloader(self, args)
> dict = self.ksdata.bootloader
> + self.id.bootloader.updateDriveList()
>
> if dict["location"] == "none":
> location = None
> @@ -359,23 +360,50 @@ class AnacondaKSHandlers(KickstartHandlers):
> ds = DiskSet(self.anaconda)
> ds.startMPath()
>
> + from bdevid import bdevid as _bdevid
> + bd = _bdevid()
> + bd.load("scsi")
> +
> mpath = self.ksdata.mpaths[-1]
> - log.debug("Searching for mpath '%s'" % (mpath.name,))
> for mp in DiskSet.mpList or []:
> + newname = ""
> it = True
> - for dev in mpath.devices:
> - dev = dev.split('/')[-1]
> + for path in mpath.paths:
> + dev = path.device
> + log.debug("Searching for mpath having '%s' as a member, the scsi id or wwpn:lunid" % (dev,))
> log.debug("mpath '%s' has members %s" % (mp.name, list(mp.members)))
> + if dev.find(':') != -1:
> + (wwpn, lunid) = dev.split(':')
> + if wwpn != "" and lunid != "":
> + if wwpn.startswith("0x"):
> + wwpn = wwpn[2:]
> + wwpn = wwpn.upper()
> + scsidev = iutil.getScsiDeviceByWwpnLunid(wwpn, lunid)
> + if scsidev != "":
> + dev = "/dev/%s" % scsidev
> + log.debug("'%s' is a member of the multipath device WWPN '%s' LUNID '%s'" % (dev, wwpn, lunid))
> if not dev in mp.members:
> - log.debug("mpath '%s' does not have device %s, skipping"
> - % (mp.name, dev))
> - it = False
> - if it:
> + mpscsiid = bd.probe("/dev/mapper/%s" % mp.name)[0]['unique_id']
> + if dev != mpscsiid:
> + log.debug("mpath '%s' does not have device %s, skipping"
> + % (mp.name, dev))
> + it = False
> + else:
> + log.debug("Recognized --device=%s as the scsi id of '%s'" % (dev, mp.name))
> + newname = path.name
> + break
> + else:
> + log.debug("Recognized --device=%s as a member of '%s'" % (dev, mp.name))
> + newname = path.name
> + break
> + if it and mp.name != newname:
> log.debug("found mpath '%s', changing name to %s"
> - % (mp.name, mpath.name))
> - newname = mpath.name
> + % (mp.name, newname))
> + mpath.name = mp.name
> ds.renameMPath(mp, newname)
> + bd.unload("scsi")
> return
> + bd.unload("scsi")
> ds.startMPath()
>
> def doDmRaid(self, args):
> diff --git a/yuminstall.py b/yuminstall.py
> index 50e6bb5..df898bf 100644
> --- a/yuminstall.py
> +++ b/yuminstall.py
> @@ -1424,31 +1424,46 @@ class YumBackend(AnacondaBackend):
> if not os.path.isdir(d):
> os.makedirs(d, mode=0755)
>
> + mpdevlst = []
> + for mpdev in anaconda.id.diskset.mpList or []:
> + mpdevlst.append(mpdev.name)
> +
> for entry in anaconda.id.fsset.entries:
> dev = entry.device.getDevice()
> - if dev.find('mpath') != -1:
> - # grab just the mpathXXX part of the device name
> - mpathname = dev.replace('/dev/', ')
> - mpathname = mpathname.replace('mpath/', ')
> - mpathname = mpathname.replace('mapper/', ')
> -
> - # we only want 'mpathNNN' where NNN is an int, strip all
> - # trailing subdivisions of mpathNNN
> - trail = re.search("(?<=^mpath).*$", mpathname)
> - if trail is not None:
> - i = 1
> - major = None
> -
> - while i <= len(trail.group()):
> - try:
> - major = int(trail.group()[0:i])
> - i += 1
> - except:
> - break
> -
> - if major is not None:
> - mpathname = mpathname.replace(trail.group(), ')
> - mpathname = "%s%d" % (mpathname, major,)
> + for mpdev in mpdevlst:
> + # eliminate the major number (ex. mpath0 -> mpath)
> + pos = 0
> + while pos < len(mpdev):
> + if mpdev[pos].isdigit():
> + mpdev = mpdev[
os]
> + break
> + pos += 1
> + if dev.find(mpdev) != -1:
> + # grab just the basename of the device
> + mpathname = dev.replace('/dev/', ')
> + mpathname = mpathname.replace('mpath/', ')
> + mpathname = mpathname.replace('mapper/', ')
> +
> + # In case of mpathNNNpMMM, we only want 'mpathNNN' where
> + # NNN is an int, strip all trailing subdivisions of mpathNNN
> + mpregex = "(?<=^%s).*$" % mpdev
> + trail = re.search(mpregex, mpathname)
> + if trail is not None:
> + i = 1
> + major = None
> +
> + while i <= len(trail.group()):
> + try:
> + major = int(trail.group()[0:i])
> + i += 1
> + except:
> + break
> +
> + if major is not None:
> + mpathname = mpathname.replace(trail.group(), ')
> + mpathname = "%s%d" % (mpathname, major,)
> + else:
> + continue
>
> # if we have seen this mpath device, continue
> if wwids != []:
> @@ -1624,6 +1639,14 @@ class YumBackend(AnacondaBackend):
>
> f.write('}
')
>
> + for (mpathname, id) in wwids:
> + if(mpathname.find("mpath") == -1):
> + # this mpath device was renamed
> + f.write('
multipath {
')
> + f.write(" wwid "%s"
" % (id,))
> + f.write(" alias "%s"
" % (mpathname,))
> + f.write('}
')
> +
> f.close()
>
> def checkSupportedUpgrade(self, anaconda):
This looks good to me.
--
Peter
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kickstart option to make mpath0 point to arbitrary LUN (#502768)
