> We take the BKL, yes; but if we need to sleep waiting for a block to
> be read in, that's when another process can run. Yes, that means
> another process could end up deleting the entry out from under us ---
> or make some other change to the directory. I was actually quite
> nervous about this, so I spent some time auditing the code paths of
> when do_split() might sleep, to make sure it would never leave the
> directory in an unstable condition.
HUH?
->rename() holds ->i_sem on both directories. So do all other directory
methods. What the hell is going on there?
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