On Monday, February 27, 2012 10:18:40 AM UTC-8, Slawomir Pryczek wrote: > > Hi Guys in code we have some locks > > slabs_lock > cache_lock > item_lock > > can you please explain what these are for? Should i get cache_lock, > then item_lock to remove an item? I see we have function > unlink_nolock... why is it needed? >
Your best bet would be to trace the code you see. Where is unlink_nolock called? Which locks are used during that call and how are they acquired? etc... If you're intending to make modifications to the existing engine, you're going to need to study this code carefully.
