Re: [PATCH v2 1/2] sched: Add cond_resched_rcu_lock() helper

From: Peter Zijlstra
Date: Wed May 01 2013 - 11:19:48 EST


On Wed, May 01, 2013 at 05:46:37AM -0700, Paul E. McKenney wrote:

> If the only goal is to allow preemption, and if long grace periods are
> not a concern, then this alternate approach would work fine as well.

Hmm.. if that were the goal I'd like it to have a different name;
cond_resched*() has always been about preemption.

> Of course, both approaches assume that the caller is in a place
> where having all RCU-protected data disappear is OK!

Quite :-)
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