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797c18d543
Introduce new implmentation of dm_task_get_info() function with support for reading internal_suspend. . This time it is done in a 'versioned' way. We keep the old fashion dm_task_get_info(Base) to implement the old behavior of 1.02.95 libdm code. libdm version 1.02.96 introduced 'macro' wrapper dm_task_get_info_with_deferred_remove with new implementation of dm_task_get_info() - we cannot do anything else then to provide compatible version of this symbol. Now in version 1.02.97 we add new versioned implementation of dm_task_get_info(DM_1_02_97) symbol. This has the effect that i.e. rpm build will finaly resolve proper dependency on a new symbol - so it will be no longer possible, to build a new binary and use old library (rpm -q --provides will show libdevmapper.so.1.02(DM_1_02_97)(64bit)) Also the history is now tracked. If a new function is added (or reimplemented), it needs to be placed in proper file, so it could be exported with right versioning symbol. File .exported_symbols.Base should and any existing older DM should be treated as read-only after a release. Also - only libdm has been currently enhanced with versioned .Base file, as soon as other libs (liblvm, libdevmapper-event) needs changes they should also get their exported symbol files - meanwhile make.tmpl handles both cases.