Re: [PATCH] cpu hotplug: Make cpu_active_map synchronization dependency clear

[Ingo Molnar <mingo@elte.hu>]

* Ingo Molnar <mingo@elte.hu> wrote:

> * Max Krasnyansky <maxk@qualcomm.com> wrote:
> 
> > This goes on top of the cpu_active_map (take 2) patch.
> 
> i've applied it to sched/devel. [...]

build fix below for UP.

	Ingo

---------------------------------------------->
commit 1b427c153a08fdbc092c2bdbf845b92fda58d857
Author: Ingo Molnar <mingo@elte.hu>
Date:   Fri Jul 18 14:01:39 2008 +0200

    sched: fix build error, provide partition_sched_domains() unconditionally
    
    provide an empty partition_sched_domains() definition for the UP case:
    
     include/linux/cpuset.h: In function ‘rebuild_sched_domains':
     include/linux/cpuset.h:163: error: implicit declaration of function ‘partition_sched_domains'
    
    Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/linux/sched.h |   11 ++++++++++-
 1 files changed, 10 insertions(+), 1 deletions(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 1941d8b..26da921 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -824,7 +824,16 @@ extern void partition_sched_domains(int ndoms_new, cpumask_t *doms_new,
 				    struct sched_domain_attr *dattr_new);
 extern int arch_reinit_sched_domains(void);
 
-#endif	/* CONFIG_SMP */
+#else /* CONFIG_SMP */
+
+struct sched_domain_attr;
+
+static inline void
+partition_sched_domains(int ndoms_new, cpumask_t *doms_new,
+			struct sched_domain_attr *dattr_new)
+{
+}
+#endif	/* !CONFIG_SMP */
 
 struct io_context;			/* See blkdev.h */
 #define NGROUPS_SMALL		32