Quoting Tvrtko Ursulin (2020-07-31 16:15:43) > > On 30/07/2020 10:37, Chris Wilson wrote: > > Allow a brief period for continued access to a dead intel_context by > > deferring the release of the struct until after an RCU grace period. > > As we are using a dedicated slab cache for the contexts, we can defer > > the release of the slab pages via RCU, with the caveat that individual > > structs may be reused from the freelist within an RCU grace period. To > > handle that, we have to avoid clearing members of the zombie struct. > > What was the motivation? I wanted a window where the pointer was kept alive by RCU after we called intel_context_put() so I could keep using spinlock for a bit. If you look closely, you might spot that isn't used any more, but I liked the ctor so kept it around. -Chris _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
