Elijah Newren <newren@xxxxxxxxx> writes: > So with that out of the way, let's return to discussing the textconv > cache. If the remerge-diff results aren't cached, isn't it unsafe to > allow the textconv cache to persist anything while remerge-diff is > running because it could create corruption? I do not think anybody involved in this thread thinks it is practical to annotate each write_object_file() with "this is temporary" vs "this is to persist", so it is a given that it would be all-or-none. If we want write_object_file() called while we are running remerge-diff to write to a temporary object store, we have to accept any other write_object_file() called by somebody else, like textconv cache, must become temporary. It may be sufficient to plug ref updates (which would cover the finialization of notes-cache used by the textconv cache) to avoid corruption, but that might give us a pointless and unpleasant error message, so it may be necessary to teach the notes-cache stuff to allow getting existing cached data while disabling it to accept cache updates. Thanks.