d3a7c489c7
This has a different model than the 'thread' and 'map' struct lifetimes: there is not a definitive "don't use this DSO anymore" event, i.e. we may get many 'struct map' holding references to the '/usr/lib64/libc-2.20.so' DSO but then at some point some DSO may have no references but we still don't want to straight away release its resources, because "soon" we may get a new 'struct map' that needs it and we want to reuse its symtab or other resources. So we need some way to garbage collect it when crossing some memory usage threshold, which is left for anoter patch, for now it is sufficient to release it when calling dsos__exit(), i.e. when deleting the whole list as part of deleting the 'struct machine' containing it, which will leave only referenced objects being used. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/n/tip-majzgz07cm90t2tejrjy4clf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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