Review request: 8025096: Move the ChunkManager instances out of the VirtualSpaceLists
stefan.karlsson at oracle.com
Thu Sep 19 23:54:13 PDT 2013
New webrev based on Coleen's comments.
- Moved the _vs_list pointer out from SpaceManager
- Removed the unused _medium_chunk_bunch field.
On 9/19/13 9:48 PM, Stefan Karlsson wrote:
> In the fix for 'JDK-8024547
> <https://bugs.openjdk.java.net/browse/JDK-8024547>: MaxMetaspaceSize
> should limit the committed memory used by the metaspaces' we need to
> make a clearer distinction between when new memory is committed and
> when memory is allocated inside already committed memory.
> Moving the ChunkManager, which handles the free chunk list, out of the
> VirtualSpaceList, which handles the committed metaspace memory, is a
> step in that direction.
> - Move the ChunkManager instances from VirtualSpaceList to SpaceManager.
> - Move the inc_container_count() into ChunkManager::free_chunks_get.
> Now the Chunk manager calls dec_container_count when chunks are
> inserted in the chunk free list and inc_container_count when chunks
> are removed from the chunk free list.
> - Moved the ChunkManager::chunk_freelist_allocate() call out from the
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