| Commit message (Collapse) | Author | Age | Files | Lines |
|---|
| |
|
|
|
|
|
|
|
|
|
|
| |
3 directory definitions: mdmon directory for its pid and sock files,
mdmonitor directory which is for the mdadm monitor mode pid file and
can only be passed in via command line, and the directory for the
mdadm map file. Only the mdadm map file still hunts multiple locations,
and the number of locations has been reduced to /var/run and the
compile time specified location. I could see lowering that to just
1 location, but I didn't do that with this patch.
Signed-off-by: Doug Ledford <dledford@redhat.com>
|
| |
|
|
|
|
|
|
|
|
|
| |
- when we waited for the old mdmon to exit, we didn't look
for the socket in the right place
- when we failed to find a pid file, we returned the wrong
value (code expected <0, but got ==0).
Signed-off-by: Luca Berra <bluca@comedia.it>
Signed-off-by: NeilBrown <neilb@suse.de>
|
| |
|
|
|
|
|
|
| |
/var/run probably doesn't persist from early boot.
So if necessary, store in in /lib/init/rw or somewhere else
that does persist.
Signed-off-by: NeilBrown <neilb@suse.de>
|
| |
|
|
|
|
|
|
|
|
| |
Connect to the monitor in the old namespace and use that connection for
WaitClean requests when stopping the victim mdmon instance. This allows
ping_monitor() to work post chroot().
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
|
| |
|
|
|
|
|
|
|
|
|
|
| |
It is currently possible to remove a device and re-add it without the
manager noticing, i.e. without detecting a mdstat->devcnt
container->devcnt mismatch. Introduce ping_manager() to arrange for
mdmon to run manage_container() prior to mdadm dropping the exclusive
open() on the container. Despite these precautions sysfs_read() may
still fail. If this happens invalidate container->devcnt to ensure
manage_container() runs at the next event.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
The action we are waiting for may not be complete until the monitor has
had a chance to take action on the result.
The following script can now remove the device on the first attempt,
versus a few attempts with the original Wait():
#!/bin/bash
#export MDADM_NO_MDMON=1
export IMSM_DEVNAME_AS_SERIAL=1
./mdadm -Ss
./mdadm --zero-superblock /dev/loop[0-3]
echo 2 > /proc/sys/dev/raid/speed_limit_max
./mdadm --create /dev/imsm /dev/loop[0-3] -n 4 -e imsm -a md
./mdadm --create /dev/md/r1 /dev/loop[0-3] -n 4 -l 5 --force -a mdp
./mdadm --fail /dev/md/r1 /dev/loop3
./mdadm --wait /dev/md/r1
x=0
while ! ./mdadm --remove /dev/imsm /dev/loop3 > /dev/null 2>&1
do
x=$((x+1))
done
echo "removed after $x attempts"
./mdadm --add /dev/imsm /dev/loop3
Include 2 small cleanups:
* remove the almost open coded fd2devnum() in Wait() by introducing a
new utility routine stat2devnum()
* teach connect_monitor() to parse the container device from a subarray
string
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
|
| |
|
|
|
|
|
| |
Though it should never bee needed, having a timeout in ping_monitor is
a sensible safeguard.
Signed-off-by: Neil Brown <neilb@suse.de>
|
| |
|
|
| |
More here
|
| |
|
|
|
| |
Data is being passed in shared memory, so the pipe is only being
use as a wakeup. This can more easily be done with a thread-signal.
|
| |
|
|
|
|
|
| |
This really should be done in mdadm, not mdmon.
We ensure the device won't be suddenly commited as a hot-spare
using O_EXCL, then check the 'holders' sysfs directory
to make sure it is only in use once.
|
|
|
From: Dan Williams <dan.j.williams@intel.com>
1/ Block attempts to add/remove devices from container members
2/ Forward add/remove requests to containers
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
|
