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Commit Graph

8 Commits

Author SHA1 Message Date
Zdenek Kabelac
d8a41f22e9 device_mapper: basic support for vdo dm target 2018-07-09 15:28:35 +02:00
Zdenek Kabelac
c1a6b10d09 device_mapper: relocate code for sending messages
To be able to send messages for recently resumed devices,
move code into inner loop.
2018-07-02 10:25:35 +02:00
Zdenek Kabelac
d56e400d44 device_mapper: deactive new nodes when load fails
When node loading fails, there is not much the caller can do,
since there is 'unknown' set of devices preloaded.

Only suspend during preload knows future precommitted 'metadata',
so it's non-trivial to drop 'preloaded' entries with any later call.

However dm tree tracks newly loaded entries - so in this case it
may simplify the recovery path by dropping preloaded entries so
they are not leaked in the DM table.
2018-07-02 10:25:35 +02:00
Zdenek Kabelac
4194fc9bbd device_mapper: add new _dm_task_create_device_status
Introduce new function _dm_task_create_device_status for grabbing
status of device for better code sharing.
2018-06-25 15:07:55 +02:00
Zdenek Kabelac
739a213d2e device_mapper: split code for sending message
Move message sending from _thin_pool_node_message to
new _node_message for possible better code sharing.
2018-06-25 15:07:55 +02:00
Zdenek Kabelac
a1c81c009a device_mapper: split _node_send_message
For better code reuse split _node_send_messages into commont
messaging part and separate _thin_pool_node_send_messages.

Patch makes it possible to better reuse common code for messaging
other targets.
2018-06-25 15:07:55 +02:00
Joe Thornber
d5da55ed85 device_mapper: remove dbg_malloc.
I wrote dbg_malloc before we had valgrind.  These days there's just
no need.
2018-06-08 13:40:53 +01:00
Joe Thornber
ccc35e2647 device-mapper: Fork libdm internally.
The device-mapper directory now holds a copy of libdm source.  At
the moment this code is identical to libdm.  Over time code will
migrate out to appropriate places (see doc/refactoring.txt).

The libdm directory still exists, and contains the source for the
libdevmapper shared library, which we will continue to ship (though
not neccessarily update).

All code using libdm should now use the version in device-mapper.
2018-05-16 13:00:50 +01:00