[rvm-research] about the lock() in freelist

Hi,everyone

   I'm reading the codes about  how  immix get blocks from the  freelist.
But I have some doubts about the lock() use in the
FreeListPageResource.java /allocPages()

such as :

    lock();
    boolean newChunk = false;


I can't understand that is this lock()  used to synchronize the immix
mutator threads or to synchronize the all the discontiguous spaces'
mutator threads at this point.
I think the free list is shared by all discontiguous space. So I think
the free list need to synchronize
all the spaces thread.

Any response is useful.
Thank you.


-- 
ChenXi.Wang

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