On Mon, Jun 12, 2006 at 05:24:28PM +0200, S?bastien Dugu? wrote:
> The patch you refer to is at
> http://marc.theaimsgroup.com/?l=linux-kernel&m=114725326712391&w=2
>
> But maybe a better solution for condvars would be to implement
> something like a futex_requeue_pi() to handle the broadcast and
> only use PI futexes all along in glibc.
FUTEX_REQUEUE certainly should be able to requeue from normal futex
to a PI futex or vice versa, I don't think it is desirable to create
a separate futex cmds for that.
Now not sure what do you mean by "use PI futexes all along in glibc",
certainly you don't mean using them for normal mutexes, right?
FUTEX_LOCK_PI has effects the normal futexes shouldn't have.
The condvars can be also used with PP mutexes and using PI for the cv
internal lock unconditionally wouldn't be the right thing either.
Jakub
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