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Commit Graph

3 Commits

Author SHA1 Message Date
Zdenek Kabelac
9ef820a2a5 libdm: dm_tree_node_size_changed recognizes reduction
Add more functionality to size_changed function.
While 'existing' API only detected  0 for
unchanged,  and  for changed,
new improved API will also detected if the
size has only went bigger - or there was
size reduction.

Function work for the whole dm-tree - so
no change is size is always 0.
only size extension  1.
and if some size reduction is there - returns -1.

This result can be used for better evaluation
whether we need to flush before suspend.
2015-10-25 21:05:15 +01:00
Zdenek Kabelac
09a62cca0c libdm: add dm_hold_control_dev
Support hold of control device open.
Useful for daemons so the control device is not frequently reopenned.
2015-10-22 22:27:31 +02:00
Peter Rajnoha
508f0f5a21 libdm: add dm_report_compact_given_fields
dm_report_compact_given_fields is the same as dm_report_compact_fields,
but it processes only given fields, not all the fields in the report
like dm_report_compact_field does.
2015-10-16 17:05:54 +02:00