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130 Commits

Author SHA1 Message Date
Zdenek Kabelac
a0c4e85c48 Add -tpool layer in activation tree 
Let's put the overlay device over real thin pool device.
So we can get the proper locking on cluster.
Overwise the pool LV would be activate once implicitely
and in other case explicitely, confusing locking mechanism.
This patch make the activation of pool LV independent on
activation of thin LV since they will both implicitely use
real -thin pool device.
 2011-11-03 14:52:09 +00:00
Zdenek Kabelac
2e732e9628 Thin api change for passing message into libdm 
Avoid exposing another struct to the libdm user and
use only simple dm_tree_node_add_thin_pool_message with
2 overloaded uint64_t values.
 2011-11-03 14:45:01 +00:00
Zdenek Kabelac
daa39a1f64 Thin clean using delete_id consitently 2011-11-03 14:37:23 +00:00
Zdenek Kabelac
f8d46bd256 Thin cleanups 
Fix/cleanup several error messages.
Remove test for seg_is_thin which could never be true there.
Replace (1<<24) with predefined constant.
 2011-10-30 22:00:57 +00:00
Zdenek Kabelac
2721175d55 Thin output data_block_size via outsize 
Use outsize to get nice size hint.
 2011-10-28 20:25:08 +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
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
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
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
1f7edce804 Indent debug message 2011-10-17 14:17:30 +00:00
Zdenek Kabelac
a25434a3a3 Message support for thin provisiong 
lvm part of messaging.

Each message is now stored it's own thin pool section:

message1 {
	create = lv
}

Messages are queued to thin pool dm target when this target
is going to be resumed or used through some dependency.

Currently  'delete' message are purely queued and processed
with next thin pool resume operation (i.e. create_thin).

WARNING - thin provisioning support is developmental code.
 2011-10-17 14:17:09 +00:00
Zdenek Kabelac
5940327f3a Reindent some thin functions 2011-10-11 08:51:56 +00:00
Zdenek Kabelac
151ed8d935 Add more validation to config parser 
Do not leave it for vgvalidate().
 2011-10-06 11:06:36 +00:00
Zdenek Kabelac
1419bf1c98 Transaction_id is property of thin_pool 
Remove Transaction_id from thin target.
Store device_id for thin target.
 2011-10-03 18:26:07 +00:00
Zdenek Kabelac
aebf2d5cdc Add experimental code for activation of thinp targets 
No dm messages yes - just a base functionality in the steps of other targets.
For now usable only for debugging and tracing.
 2011-09-29 08:56:38 +00:00
Alasdair Kergon
ef78ebf35a lvcreate/remove thin_pool and thin volumes (--driverloaded n only) 2011-09-08 16:41:18 +00:00
Alasdair Kergon
bb6f9b10db pool attach fns & more field renaming 2011-09-06 22:43:56 +00:00
Zdenek Kabelac
5a7926c7d9 Convert data->pool 2011-09-06 22:35:44 +00:00
Alasdair Kergon
b88362ff95 add thin_manip.c like the other manip files 
move basic lv_is_* to macros
data_lv -> pool_lv - we decided to call it 'pool' everywhere now
 2011-09-06 19:25:42 +00:00
Alasdair Kergon
9ac61d2ba2 lvcreate parsing for thin provisioning. 
The rest is incomplete so this isn't usable yet.
 2011-09-06 00:26:42 +00:00
Zdenek Kabelac
466098cd1c Reflect dm_config API update 2011-09-01 10:16:32 +00:00
Petr Rockai
e59e2f7c3c Move the core of the lib/config/config.c functionality into libdevmapper, 
leaving behind the LVM-specific parts of the code (convenience wrappers that
handle `struct device` and `struct cmd_context`, basically). A number of
functions have been renamed (in addition to getting a dm_ prefix) -- namely,
all of the config interface now has a dm_config_ prefix.
 2011-08-30 14:55:15 +00:00
Alasdair Kergon
6fbf1c6b56 seg_is_thin includes both thin_pool and thin_volume 2011-08-26 18:15:14 +00:00
Alasdair Kergon
42914557d5 thin - hide unimplemented dso fn; remove duplicate origin_lv field; add 
some lvcreate struct parms
 2011-08-26 17:40:53 +00:00
Zdenek Kabelac
e82bd6249b Initial code for read/write of thin metadata lv segments 2011-08-26 13:37:47 +00:00
Zdenek Kabelac
9d32170d5c Add registration of thin_pool segment 
Register thin and thin_pool segment via multiple_segtypes.
 2011-08-25 10:00:09 +00:00
Zdenek Kabelac
3ba4a19510 Initial code layout for thin provisioning target 
Only registers init_thin_segtype

Option --with-thin=internal needed for compilation.
For now useful only for developememt!
 2011-08-24 08:27:49 +00:00