On Mon, Mar 3, 2014 at 2:09 PM, Al Viro <viro@xxxxxxxxxxxxxxxxxx> wrote:
>
> Yes, but in that case fdget() has grabbed a reference to that sucker,
> so the only way to end with refcount 1 is to have the damn thing gone
> from descriptor table in between. And AFAICS in that case we are just
> fine without f_pos_lock.
Ahh. Yes, you're right, just checking the file_count() is sufficient,
because as you say, the threaded case will have incremented it for the
case we care about./
Linus
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