Re: [PATCH 2/2] files_read_raw_ref: prevent infinite retry loops in general

> Limit the number of retries to 3. That should be adequate to
> prevent any races, while preventing the possibility of
> infinite loops if the logic fails to handle any other
> possible error modes correctly.
> 
> After the fix in the previous commit, there's no known way
> to trigger an infinite loop, but I did manually verify that
> this fixes the test in that commit even when the code change
> is not applied.
> [...]