[Gluster-devel] questions on callstubs and "link-count" in index translator

[Junsong Li]

Hello list,

I have a couple of questions on index translator implementation.

  *   Why does gluster need callstub and a different worker queue (and thread) to process those call stubs? Is it just to lower the priority of fops of internal inodes?
  *   What’s the purpose of “link-count” in xdata? It’s being used only in index_fstat and index_lookup. I see sometimes the key is assigned 0/1 after callback, and sometimes AFR uses it to store flag GF_XATTROP_INDEX_COUNT. Is the code purposely reusing the key?
Thanks,
Junsong
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