On Fri, 18 May 2012 09:26:05 +0200 Ingo Molnar <mingo@xxxxxxxxxx> wrote: > I'm not sure we had a usable spin_is_contended() back then, nor > was the !PREEMPT case in my mind really. The fact that both spin_needbreak() and spin_is_contended() can be used outside of sched is a bit confusing. For example, in mm/compaction.c we are using spin_is_contended(), but in mm/memory.c spin_needbreak(). BTW, the actual users of spin_is_contended() look to be only: mm/compaction.c security/keys/gc.c > ( The patch looks ugly though, in 99% of the lines it just does > something that cond_resched_lock() itself could do. ) Please ignore the patch. I have already found a way to solve my problem without cond_resched(). Thanks, Takuya -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
