f54e6321a2
imsm: use component_size not total array size in container_content_imsm
...
Also kill setting ->array.size as nothing appears to be using it.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-24 17:26:24 -07:00
fcfd95998b
imsm: take chunksize into account when calculating blocks_per_member
...
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-24 17:26:24 -07:00
755c99faf2
sysfs: deprecate sysfs_disk_to_sg
...
The cmd_filter patch merged for 2.6.27 broke retrieving the serial
number via an ioctl to /dev/sgN. In debugging this I found that other
utilities like sdparm simply run the ioctl on /dev/sdX. So just convert
to that for protection in numbers, but scream on the mailing list for
the inconvenience grr...
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-24 17:26:24 -07:00
eb7ea4630f
imsm: fix store_zero_imsm breakage from posix_memalign conversion
...
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-24 17:26:23 -07:00
0030e8d690
imsm: debug environment variable to use 'device name' as 'serial number'
...
Facilitate using loopback devices for the imsm regression suite
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-24 17:26:23 -07:00
e9d82038f8
imsm: allow --examine to succeed with damaged metadata
...
limp along after seeing mismatched serial numbers
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-24 17:26:23 -07:00
5802a8118e
imsm: handle degraded->normal transitions in set_disk
...
Removes the need for the call to ->set_array_state when sync_action
transitions from 'recover' to 'idle'.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-24 17:26:23 -07:00
8273f55e4f
imsm: create array via update to mdmon
2008-07-24 17:26:19 -07:00
4ad866b132
install mdmon to the same location as mdadm
...
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-21 17:42:12 -07:00
ef649044b7
imsm: remove some casts
...
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-21 17:42:10 -07:00
5257ce365b
imsm: activate_spare: fix handling of data_offset
...
Neil rightly points out that imsm_activate_spare may skip valid free space
on a spare, fix this up.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-21 11:08:20 -07:00
5545fa6d94
Document MDADM_NO_MDMON
...
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-18 17:47:34 -07:00
800053d600
Documentation fixup for stripe_cache_size
...
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-18 17:47:13 -07:00
a5ee6dfbf5
Document preread_bypass_threshold
...
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-18 17:14:44 -07:00
eb2c876f4d
msg: add a timeout to ping_monitor
...
Though it should never bee needed, having a timeout in ping_monitor is
a sensible safeguard.
Signed-off-by: Neil Brown <neilb@suse.de>
2008-07-18 16:37:28 +10:00
33af8567de
monitor: call get_resync_start on array shutdown.
...
If the array is shutdown as soon as resync finishes, we might not
notice the resync finish. So on array shutdown, check for current
resync pos.
Signed-off-by: Neil Brown <neilb@suse.de>
2008-07-18 16:37:26 +10:00
ada6c2390a
Manage: sync with mdmon before stopping containers.
...
mdmon sometimes opens the container. That will prevent 'stop'
from working. So sync with mdmon first.
Signed-off-by: Neil Brown <neilb@suse.de>
2008-07-18 16:37:25 +10:00
4b9d39fc17
Manage: fixed some error message in --stop
...
Explain the meaning of 'quiet' explicitly, and fix some grammar
and formatting.
Signed-off-by: Neil Brown <neilb@suse.de>
2008-07-18 16:37:24 +10:00
9fe3204317
mdmon: fork and run as a daemon.
...
start_mdmon now waits for mdmon to complete initialisation and,
importantly, listen on the socket, before continuing.
Signed-off-by: Neil Brown <neilb@suse.de>
2008-07-18 16:37:20 +10:00
8dfb8619f9
sysfs: avoid possible data corruption in sys_load.
...
Don't retry to remove a newline from the end of an empty string.
Signed-off-by: Neil Brown <neilb@suse.de>
2008-07-18 16:37:18 +10:00
7364918895
Correct readlink usage in sysfs.c
...
readlink doesn't nul-terminate the returned string, so we must
be sure to do that.
Signed-off-by: Neil Brown <neilb@suse.de>
2008-07-18 16:37:16 +10:00
44d2e36556
Don't assume that mdmon is in the current directory.
...
Rather, assume that it is in the same directory from which
mdadm was run. If not, then maybe /sbin or current directory.
Signed-off-by: Neil Brown <neilb@suse.de>
2008-07-18 16:37:13 +10:00
8850ee3e1e
Factor common code into new "start_mdmon".
...
Signed-off-by: Neil Brown <neilb@suse.de>
2008-07-18 16:37:11 +10:00
daf7a3ce96
Stop managed arrays more carefully.
...
If an array is being managed by mdmon, then just
write "inactive" to stop it, and let mdmon do the
final "clear". This makes sure mdmon has a chance
to read the final state and update the metadata properly.
After writing "inactive" with use "ping_monitor" to synchronise
with mdadm, then STOP the array just in case it is still running,
else we will get into an infinite loop in "mdadm -Ss".
Signed-off-by: Neil Brown <neilb@suse.de>
2008-07-18 16:37:09 +10:00
1eb252b848
mdmon: ping will wait for manage_mon to catch up.
...
When a 'ping' (empty message) is sent to mdmon, we wait for
'monitor' to do a full loop to make sure it has caught up
with anything that needs doing.
This allows synchronisation between mdadm and mdmon.
Maybe monitor should signal managemon rather than managemon polling...
Signed-off-by: Neil Brown <neilb@suse.de>
2008-07-18 16:37:06 +10:00
103f2410ec
Make sure resync_start is initialised properly and maintained properly
...
Signed-off-by: Neil Brown <neilb@suse.de>
2008-07-18 16:37:04 +10:00
120f767760
ddf: endian fixes.
...
We forgot to convert endian for lba_offset at one point,
and use le32 instead of be32 right nearby!!
Signed-off-by: Neil Brown <neilb@suse.de>
2008-07-18 16:37:03 +10:00
00e021427e
mdmon: close possibility of re-marking the metadata dirty on shutdown
...
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-14 14:59:39 -07:00
0a6bdbee8d
mdmon: notify metadata of recovery completion
...
Array may no longer be degraded.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-14 14:59:39 -07:00
272bcc48d1
mdmon: initialize component_size in manage_new
...
When we go to activate a spare for an array we expect ->info.component_size
is valid.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-14 14:59:39 -07:00
2cc98f9ea5
mdmon: close small window of invalid mon_tid
...
There is a small chance that the manager tries to wake the monitor before
mon_tid is set.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-14 14:59:39 -07:00
5dcfcb715d
mdadm: add an environment variable to prevent auto-launching mdmon
...
Useful for attaching gdb to mdmon before any action is taken on the array.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-14 14:59:32 -07:00
00451d9874
managemon: don't treat sysfs_add_disk as boolean function
...
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-14 14:10:02 -07:00
e8319a19f2
imsm: process update
...
Handle 'activate_spare' events
2008-07-14 14:10:02 -07:00
88758e9daa
imsm: activate_spare
...
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-14 14:09:48 -07:00
2da8544a39
imsm: metadata only supports a global 'data_offset'
...
When creating a volume a drive must have free space starting at the same
location as all the other drives in the array.
2008-07-14 13:59:56 -07:00
ef6ffaded4
imsm: fix raid1 creation
...
Need to supply dummy values for the chunk size and number of data stripes
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-14 13:58:19 -07:00
0372d5a2f4
imsm: fail ->open_new if container_member is out of range
...
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-14 13:57:33 -07:00
a3d6757fbf
imsm: kill obsolete call to fsync() in store_imsm_mpb
...
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-14 13:56:42 -07:00
2c092cada6
imsm: fix insufficient mpb buffer allocation
...
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-14 13:56:28 -07:00
ad97895ec8
imsm: catch posix_memalign allocation failures
...
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-14 13:55:12 -07:00
bf5a934aff
imsm: remove extra superswitches
...
Following the lead of 75ede16d. This incidentally fixes creation of a second
array by gating call to getinfo_super_imsm_volume with a valid ->current_vol.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-14 13:55:12 -07:00
99e2926423
imsm: fix store_imsm_mpb() alignment for O_DIRECT
...
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-14 13:55:02 -07:00
f7f1b6a1db
Print used message in place of "default metadata" message.
...
When creating an array in a container, print e.g.
Creating array inside ddf container /dev/whatever
rather than
Defaulting to version /md127/1 metadata
2008-07-12 20:28:38 +10:00
77472ff8d0
Introduce devname2devnum
...
and use it instead of opencoding.
2008-07-12 20:28:38 +10:00
d7161f3b51
Fix fd comparison in Incremental
...
fd==0 is theoretically possible...
2008-07-12 20:28:38 +10:00
2c514b7120
Pass 'verbose' flag to validate_geometry
...
That way it can be silent when we are just trying to figure out
which metadata to use, and noisy when detecting a real problem.
2008-07-12 20:28:38 +10:00
047d2e49f5
Correct unit conversion for component_size and dev/size in sysfs.
...
These are both Kilobytes, so do the conversion to sectors properly.
2008-07-12 20:28:38 +10:00
6416d5275d
Use O_DIRECT for all IO to devices.
...
Using buffered IO risks non-atomic updates to parts of the
device that we don't actually want to write to. This isn't in
general safe.
So switch to O_DIRECT for all that IO and make sure we have
properly aligned buffers.
2008-07-12 20:28:33 +10:00
908ef18519
Stop all arrays before running each test in regression test driver.
...
Sometimes I forget to stop arrays at the end of scripts, and
that shows errors in the next script, which is confusing.
2008-07-12 20:27:42 +10:00
Dan Williams
Jacek Danecki
NeilBrown