>> create a file with the same name, and so on.
>> B5: Does your implementation allow a directory to be removed if it
->> is in use as a process's current directory? If so, what happens to
->> that process's future file system operations? If not, how do you
->> prevent it?
+>> is open by a process or if it is in use as a process's current
+>> working directory? If so, what happens to that process's future
+>> file system operations? If not, how do you prevent it?
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