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Date: Wed, 10 Jan 2007 09:17:06 +0100 From: Pierre Peiffer <pierre.peiffer@...l.net> To: Ulrich Drepper <drepper@...hat.com> Cc: LKML <linux-kernel@...r.kernel.org>, Dinakar Guniguntala <dino@...ibm.com>, Jean-Pierre Dion <jean-pierre.dion@...l.net>, Jakub Jelinek <jakub@...hat.com>, Darren Hart <dvhltc@...ibm.com>, Sébastien Dugué <sebastien.dugue@...l.net> Subject: Re: [PATCH 2.6.20-rc4 3/4] futex_requeue_pi optimization Ulrich Drepper wrote : > > So, this patch implements requeuing from a non-PI futex to a PI futex? Yes. > That's the bare minimum needed. What about PI to PI? I may miss something, but I don't think there is a need for that. Currently, futex_requeue is (only) used in pthread_cond_broadcast to requeue some threads from an internal futex (futex1) to another futex (futex2, which is the futex behind the cond_mutex) futex1 does not need to be a PI-futex, I think. -- Pierre - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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