Re: [PATCH] Lightweight userspace semaphores...

From: Richard Henderson (rth@twiddle.net)
Date: Thu Feb 28 2002 - 19:24:22 EST


On Wed, Feb 27, 2002 at 10:53:11AM -0500, Hubertus Franke wrote:
> As stated above, I allocate a kernel object <kulock_t> on demand and
> hash it. This way I don't have to pin any user address. What does everybody
> think about the merit of this approach versus the pinning approach?
[...]
> In your case, can the lock be allocated at different
> virtual addresses in the various address spaces.

I think this is a relatively important feature. It may not be
possible to use the same virtual address in different processes.

r~
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