[lustre-devel] LDLM behaviour question

[Degremont, Aurelien]

Hi all,

I was not able to find a document giving this level of detail of LDLM behavior.
I have a basic question regarding compatibility between IBITS lock for the same fid.

Is it possible for the same MDT to lock the same FID, with 2 IBITS lock, with different bits? (ie: UPDATE vs LAYOUT)
What's the behavior is not working?

Second question: what happen when you call multiple times mdt_object_lock() for the same fid/same bits on the same MDT?

Thanks

Aurélien