[Openmp-commits] [PATCH] D104555: [OpenMP][Offloading] Fix data race in data mapping by using two locks

Shilei Tian via Phabricator via Openmp-commits openmp-commits at lists.llvm.org
Sat Jul 17 19:21:21 PDT 2021


tianshilei1992 added a comment.

In D104555#2874750 <https://reviews.llvm.org/D104555#2874750>, @grokos wrote:

> What about other instances where we have access to the `HostDataToTargetMap` followed be data transfers, e.g. when removing a mapping and copy data back to the host? Shouldn't we apply the same logic there?

I didn't come up with a case that can cause data race with D2H because we have a mandatory synchronization at the end of target region.


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