On Sat, Jan 31, 2009 at 02:34:10AM -0500, Steven Rostedt wrote: > We are pleased to announce the 2.6.26.8-rt15 tree which can be > downloaded from the following location: > > http://rt.et.redhat.com/download/ > > Information on the RT patch can be found at: > > http://rt.wiki.kernel.org/index.php/Main_Page I'm having compilation issues with this new patch. Here's the error I got: In file included from /root/lmcorrei/linux/linux-2.6.26.8-rt15/kernel/sched.c:1701: /root/lmcorrei/linux/linux-2.6.26.8-rt15/kernel/sched_rt.c: In function 'inc_rt_tasks': /root/lmcorrei/linux/linux-2.6.26.8-rt15/kernel/sched_rt.c:434: error: 'struct rq' has no member named 'online' Now, function in question has the following code: static inline void inc_rt_tasks(struct sched_rt_entity *rt_se, struct rt_rq *rt_rq) { WARN_ON(!rt_prio(rt_se_prio(rt_se))); rt_rq->rt_nr_running++; #if defined CONFIG_SMP || defined CONFIG_RT_GROUP_SCHED if (rt_se_prio(rt_se) < rt_rq->highest_prio) { struct rq *rq = rq_of_rt_rq(rt_rq); rt_rq->highest_prio = rt_se_prio(rt_se); if (rq->online) cpupri_set(&rq->rd->cpupri, rq->cpu, rt_se_prio(rt_se)); } #endif The issue is that the 'online' member is actually defined only if CONFIG_SMP is enabled and in my config I do not have it but I have CONFIG_RT_GROUP_SCHED. I am not sending any patch because I actually do not know what is the best way to solve this issue since I am not (yet!) a sched expert. However, I forsee two possible solutions: 1. Nest another #ifdef inside the first one, so that the code is only compiled when CONFIG_SMP option is set (which will result in ugly code) 2. Define 'online' member in structure outside of the CONFIG_SMP (which, I believe, is not an optimal solution) Regards, -- Luis Henriques -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
