Re: furwocks: Fast Userspace Read/Write Locks

Arjan van de Ven (arjanv@redhat.com)
Thu, 07 Mar 2002 12:50:07 +0000


Rusty Russell wrote:
>
> This is a userspace implementation of rwlocks on top of futexes.

question: if rwlocks aren't actually slower in the fast path than
futexes,
would it make sense to only do the rw variant and in some userspace
layer
map "traditional" semaphores to write locks ?
Saves half the implementation and testing....
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