On 9/10/19 4:31 PM, Mina Almasry wrote:
> Current behavior is that region_chg provides both a cache entry in
> resv->region_cache, AND a placeholder entry in resv->regions. region_add
> first tries to use the placeholder, and if it finds that the placeholder
> has been deleted by a racing region_de
Current behavior is that region_chg provides both a cache entry in
resv->region_cache, AND a placeholder entry in resv->regions. region_add
first tries to use the placeholder, and if it finds that the placeholder
has been deleted by a racing region_del call, it uses the cache entry.
This behavior
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