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Author SHA1 Message Date
Zdenek Kabelac
faf7c493f8 Test with -F flag 
grep need -F to check what we really want to test.
Add better test for existing device.

Currently this test DOES NOT work with real /dev handle via udev
since our tool does not see such device listet through udev.

FIXME: We might be able to see it at least through dmsetup table and
use for lvm.
 2011-10-23 21:24:27 +00:00
Zdenek Kabelac
f2c56bc3b6 Drop mempool parameter from read functions 
Use implicit vgmem pool.
 2011-10-23 16:05:45 +00:00
Zdenek Kabelac
72ff89d279 Always use vg memory pool for allocated lv segment 
Remove mem pool parameter from alloc_lv_segment()
Since we should always allocate LV segment from the vg mempool.
 2011-10-23 16:02:01 +00:00
Zdenek Kabelac
c13f82579c Used device name instead of device path 
Udev is tricky here - since with udev the node does not exists until
it resume happens.  So we need to resume devices via its name.
 2011-10-23 15:43:10 +00:00
Zdenek Kabelac
cb8c101885 Do not make link in the real /dev 
Skip trying to make link when real /dev dir is used for test.
 2011-10-23 15:40:15 +00:00
Zdenek Kabelac
c6676c2e57 Expect failure with real /dev dir 
As udev is for now incapable to create such devices
turn this test error into warning.
 2011-10-23 15:39:08 +00:00
Zdenek Kabelac
fd6a1bfb74 Fix usage of DEBUG_ENFORCE_POOL_LOCKING with DEBUG_MEM 
Since DEBUG_MEM is storing own extra structure within returned memory chunk,
glibc free must be used directly for posix_memaling() allocated block.
 2011-10-23 15:38:02 +00:00
Petr Rockai
d0d516eb5e In t-lvcreate-large, do not create a clustered VG. LV activation/suspend does 
not work yet with singlenode clvmd in clustered VGs.
 2011-10-23 14:30:51 +00:00
Zdenek Kabelac
9e453cab1c Reduce stack size usage in print_log 
As the buf2[] and locn[] can't be used at the same time, safe 1 page from
stack memory.
 2011-10-22 16:52:00 +00:00
Zdenek Kabelac
aef13649ea Remove old thin code from _lv_insert_empty_sublvs 
Since thin is not able to use _lv_insert_empty_sublvs,
remove its appearence from this function.

Start to use extend_pool() function for desired functionality
and modify lv_extend() for this.
 2011-10-22 16:48:59 +00:00
Zdenek Kabelac
c35bcc8bdf Ensure thin LVs take an exclusive activation 2011-10-22 16:47:23 +00:00
Zdenek Kabelac
dc225f58a9 Remove extra empty check 
dm_list_splice handles empty list itself, no need to duplicate code.
 2011-10-22 16:46:34 +00:00
Zdenek Kabelac
5d8f78a6c0 Consistently use metadata LV as the first in MDA 
Cosmetic cleanup.
Mark LV as thin pool before calling attach_pool functions.
 2011-10-22 16:45:25 +00:00
Zdenek Kabelac
f4c77bd0e3 Recoded way to insert thin pool into vg 
Code in _lv_insert_empty_sublvs  was not able to provide proper
initialization order for thin pool LV.

New function extend_pool() first adds metadata segment to pool LV which
is still visible. Such LV is activate and cleared.

Then new meta LV is created and metadata segments are moved there.
Now the preallocated pool data segment is attached to the pool LV
and layer _tpool is created. Finaly segment is marked as thin_pool.
 2011-10-22 16:44:23 +00:00
Zdenek Kabelac
06b8248d63 Make move_lv_segment non-static 
This function could be useful for other _manip source files.

Use dm_list manipulation function for provided functionality,
which make the code more readable and avoid touching list
internal details here.
 2011-10-22 16:42:10 +00:00
Alasdair Kergon
dbd60cf576 Pass exclusive LV locks to all nodes in the cluster. 
This was the intended behaviour, as described in the lvchange man page, so you
have complete control through volume_list in lvm.conf, but the code seems to
have been treating -ae as local-only for a very long time.
 2011-10-21 15:49:45 +00:00
Zdenek Kabelac
f0c9160df4 Store transaction_id with created thin lv 
So we know the creation history and this should be useful with vgcfgrestore.
 2011-10-21 11:38:35 +00:00
Zdenek Kabelac
4d925f5785 Remove double-hack for setting metadata size 
Drop the second lv_extend and set 128MB directly in the first hack place.
 2011-10-21 09:55:50 +00:00
Zdenek Kabelac
3bc417488d Thin pool now support chunk size as well 
Use chunksize option to specify data_block_size for thin pool target.
Drop low_water_mark to zero.
 2011-10-21 09:55:07 +00:00
Zdenek Kabelac
4d83891a67 Make units for chunksize more obvious 2011-10-21 09:53:16 +00:00
Zdenek Kabelac
e597d5a487 Aling structure chunk on default aling size 
Since we use 8 bytes by default for the pool allocation,
keep the structure aligned with this size.
(Somehow it was not applied in previous commit.)
 2011-10-20 14:43:33 +00:00
Zdenek Kabelac
3bdcf7c5e6 Mark chunk memory for free as defined again for valgrind 
When DEBUG_MEM is used, the memory is trashed with extra pattern before real
free() is called, and as this memory was marked as non accessible when used with
valgrind, make it again usable.
 2011-10-20 13:39:57 +00:00
Zdenek Kabelac
df0200e510 Aling structure chunk on default aling size 
Since we use 8 bytes by default for the pool allocation,
keep the structure aligned with this size.
 2011-10-20 13:36:13 +00:00
Zdenek Kabelac
e3359201cf Simplify some pointer operations 2011-10-20 13:33:41 +00:00
Zdenek Kabelac
909bc0fff1 Remove unused file from tree 2011-10-20 13:23:52 +00:00
Zdenek Kabelac
3d6782b3ff Just replace stack, return 0 with return_0 2011-10-20 10:39:07 +00:00
Zdenek Kabelac
f857b3064f Cleanup backtraces 
Make sure stacks are at the right places when something goes wrong here.
 2011-10-20 10:38:04 +00:00
Zdenek Kabelac
ac08d9c028 Add last param 0 for thin-pool 
So now the table suppression works for thin-pool.
 2011-10-20 10:35:55 +00:00
Zdenek Kabelac
22f40c4efe Ensure right activation order 
Couple FIXMEs put into the code for parts of the code which may be
improved later, since we might be able to add 'lazy' device creation later.
For now require exclusive activation.
 2011-10-20 10:35:14 +00:00
Zdenek Kabelac
e9156c2bb9 Adapt to thin kernel target API 
Since kernel target uses low_water_mark - use this name in libdm as well.
 2011-10-20 10:33:30 +00:00
Zdenek Kabelac
79c1f9fcf4 Reindent code 
Avoid 1 indent level and use check for empty list only for
add of transaction_id message.
 2011-10-20 10:32:29 +00:00
Zdenek Kabelac
7b199dc599 Use const pointers in thin API were appropriate 2011-10-20 10:31:27 +00:00
Zdenek Kabelac
d1a259d867 Print low_water_mark only when it has some value 
Do not expose low_water_mark in mda yet, if it has no use.
We do not allow to be set via current lvm tool code.
Usage needs to be clarified first.
 2011-10-20 10:30:39 +00:00
Zdenek Kabelac
3f53c059e9 Add _BLOCK_ to define 
Use DM_THIN_MIN_DATA_BLOCK_SIZE and
DM_THIN_MAX_DATA_BLOCK_SIZE to make it more obvious, for which
this define is useful in thin API.
 2011-10-20 10:28:41 +00:00
Zdenek Kabelac
789fa12d62 Improve lvcreate man page 
Split syntax for thin-pool since it cannot be fully matched with snapshot.
So to avoid more confusion - take thin support into separate line.

Though still significant updates are needed for thin provisioning.
 2011-10-19 16:49:13 +00:00
Zdenek Kabelac
d495dd40b2 Add few more protected names 2011-10-19 16:45:35 +00:00
Zdenek Kabelac
2a0d806b3c Use structure copy 
Since the code evolved a bit with current structures we could use C to
copy struct members.
 2011-10-19 16:45:02 +00:00
Zdenek Kabelac
759b9592ba Update error message 
Drop INTERNAL_ERROR from public API functions.
Improve some messages.
 2011-10-19 16:42:14 +00:00
Zdenek Kabelac
11f64f0aeb Use generic name for message sending function 
Drop _thin_pool prefix for _node_send_message so it could be extended later.
Replace current_id with trans_id name.
 2011-10-19 16:40:59 +00:00
Zdenek Kabelac
8de912b677 Simple validation of messages in mda 
Check we do not combine multiple messages for same LV target
and switch to use  'delete_id' to make it clear for what this device_id
is being used.
 2011-10-19 16:39:09 +00:00
Zdenek Kabelac
3dcce042f6 Drop messages referencing deleted LV 
lvremove may remove problematic LV for thin target.
 2011-10-19 16:37:30 +00:00
Zdenek Kabelac
97d0f72c92 Just indent changes 
Some tabs & spaces.
 2011-10-19 16:36:39 +00:00
Zdenek Kabelac
660a42bc78 Add internal expected_errno dm_tast var 
Certain errno codes could be expected in some situations thus
add experimental support for them.

When expected errno is set after ioctl error - function skips error
printing and exits succefully.

Currently only useful for thin pool messages.
 2011-10-19 16:36:01 +00:00
Zdenek Kabelac
b04e977851 Remove test for thin_pool 
Since both functions are called during mda read - we don't have full LV info
at this moment.
 2011-10-19 16:32:34 +00:00
Petr Rockai
6825ae1e28 Remove a redundant (and in some cases, misleading) message about snapshot 
extension, in the snapshot dmeventd plugin. The reporting is done as needed by
the LVM command nowadays.
 2011-10-19 14:31:49 +00:00
Petr Rockai
c266d0611a New. 2011-10-19 09:01:03 +00:00
Petr Rockai
61cf772e70 Keep the LVM-based dmeventd plugins from trying to manipulate the dmeventd 
monitoring state of the logical volumes they are currently acting on.

Until now, every time a logical volume has been changed by a dmeventd plugin,
this plugin would have called back to dmeventd through the external FIFO
mechanism. I am fairly sure this was superfluous, inefficient and possibly even
dangerous.
 2011-10-19 08:46:26 +00:00
Jonathan Earl Brassow
dc0582ce0a Fix bad lvconvert help output. 
The '--merge' option to lvconvert works on snapshots and RAID1.  The man
pages correctly reflect this, but the CLI help output still used the term,
'SnapshotLogicalVolume'.
 2011-10-18 16:27:45 +00:00
Zdenek Kabelac
41f09f7124 Use zalloc for malloc,memset 2011-10-17 14:36:06 +00:00
Zdenek Kabelac
92cdc25882 Drop messages from lvm app context 
(revert)
Thinp target uses activation context.
 2011-10-17 14:18:07 +00:00