Re: [PATCH 01/18] Add a dentry op to handle automounting rather than abusing follow_link()

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Nick Piggin <npiggin@xxxxxxxxx> wrote:

> So something has gone wrong here. You have documented .d_automount
> can be called in rcu-walk mode, but it doesn't seem to be the case.

Ah.  You removed a column and installed a new one, and I didn't notice.

Neither d_automount() and d_manage() should be entered in rcu-walk mode since
they're both expected to sleep.

Btw, should you add a fifth column for d_seq?

I should also add a column for namespace_sem as d_manage() may be called with
that held (and d_automount() must not be called with that held).

David
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