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authorLi Zefan <lizf@cn.fujitsu.com>2008-11-07 17:03:18 +0800
committerIngo Molnar <mingo@elte.hu>2008-11-07 10:30:35 +0100
commit6d21cd62516a9697cb7ec33cc52e6b814fb65a13 (patch)
tree0dad11ae40299f59f89436e13647700a3dc3047b
parent258594a138f4ca9adf214f5272592d7f21def610 (diff)
downloadop-kernel-dev-6d21cd62516a9697cb7ec33cc52e6b814fb65a13.zip
op-kernel-dev-6d21cd62516a9697cb7ec33cc52e6b814fb65a13.tar.gz
sched: clean up SCHED_CPUMASK_ALLOC
Impact: cleanup The #if/#endif is ugly. Change SCHED_CPUMASK_ALLOC and SCHED_CPUMASK_FREE to static inline functions. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--kernel/sched.c29
1 files changed, 18 insertions, 11 deletions
diff --git a/kernel/sched.c b/kernel/sched.c
index b24e57a..59db86c 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -7279,13 +7279,21 @@ struct allmasks {
};
#if NR_CPUS > 128
-#define SCHED_CPUMASK_ALLOC 1
-#define SCHED_CPUMASK_FREE(v) kfree(v)
-#define SCHED_CPUMASK_DECLARE(v) struct allmasks *v
+#define SCHED_CPUMASK_DECLARE(v) struct allmasks *v
+static inline void sched_cpumask_alloc(struct allmasks **masks)
+{
+ *masks = kmalloc(sizeof(**masks), GFP_KERNEL);
+}
+static inline void sched_cpumask_free(struct allmasks *masks)
+{
+ kfree(masks);
+}
#else
-#define SCHED_CPUMASK_ALLOC 0
-#define SCHED_CPUMASK_FREE(v)
-#define SCHED_CPUMASK_DECLARE(v) struct allmasks _v, *v = &_v
+#define SCHED_CPUMASK_DECLARE(v) struct allmasks _v, *v = &_v
+static inline void sched_cpumask_alloc(struct allmasks **masks)
+{ }
+static inline void sched_cpumask_free(struct allmasks *masks)
+{ }
#endif
#define SCHED_CPUMASK_VAR(v, a) cpumask_t *v = (cpumask_t *) \
@@ -7361,9 +7369,8 @@ static int __build_sched_domains(const cpumask_t *cpu_map,
return -ENOMEM;
}
-#if SCHED_CPUMASK_ALLOC
/* get space for all scratch cpumask variables */
- allmasks = kmalloc(sizeof(*allmasks), GFP_KERNEL);
+ sched_cpumask_alloc(&allmasks);
if (!allmasks) {
printk(KERN_WARNING "Cannot alloc cpumask array\n");
kfree(rd);
@@ -7372,7 +7379,7 @@ static int __build_sched_domains(const cpumask_t *cpu_map,
#endif
return -ENOMEM;
}
-#endif
+
tmpmask = (cpumask_t *)allmasks;
@@ -7626,13 +7633,13 @@ static int __build_sched_domains(const cpumask_t *cpu_map,
cpu_attach_domain(sd, rd, i);
}
- SCHED_CPUMASK_FREE((void *)allmasks);
+ sched_cpumask_free(allmasks);
return 0;
#ifdef CONFIG_NUMA
error:
free_sched_groups(cpu_map, tmpmask);
- SCHED_CPUMASK_FREE((void *)allmasks);
+ sched_cpumask_free(allmasks);
kfree(rd);
return -ENOMEM;
#endif
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