Re: [PATCH] cpu hotplug: Make cpu_active_map synchronizationdependency clear

From: Ingo Molnar
Date: Fri Jul 18 2008 - 08:04:18 EST



* Ingo Molnar <mingo@xxxxxxx> wrote:

> * Max Krasnyansky <maxk@xxxxxxxxxxxx> 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@xxxxxxx>
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 ârebuild_sched_domains':
include/linux/cpuset.h:163: error: implicit declaration of function âpartition_sched_domains'

Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
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
--
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