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mm: refactor register_cpu_under_node()

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By returning early if the node is not online, we can unindent the
interesting code by one level.

No functional change.

Signed-off-by: Alex Chiang <achiang@hp.com>
Cc: Gary Hade <garyhade@us.ibm.com>
Cc: Badari Pulavarty <pbadari@us.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: David Rientjes <rientjes@google.com>
Cc: Greg KH <greg@kroah.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Cc: David Rientjes <rientjes@google.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alex Chiang 2009-12-14 17:59:06 -08:00 committed by Linus Torvalds
parent dee5d0d518
commit f8246f3159
1 changed files with 11 additions and 9 deletions
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20
drivers/base/node.c
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@ -271,16 +271,18 @@ struct node node_devices[MAX_NUMNODES];
*/ */
int register_cpu_under_node(unsigned int cpu, unsigned int nid) int register_cpu_under_node(unsigned int cpu, unsigned int nid)
{ {
if (node_online(nid)) { struct sys_device *obj;
struct sys_device *obj = get_cpu_sysdev(cpu);
if (!obj)
return 0;
return sysfs_create_link(&node_devices[nid].sysdev.kobj,
&obj->kobj,
kobject_name(&obj->kobj));
}
return 0; if (!node_online(nid))
return 0;
obj = get_cpu_sysdev(cpu);
if (!obj)
return 0;
return sysfs_create_link(&node_devices[nid].sysdev.kobj,
&obj->kobj,
kobject_name(&obj->kobj));
} }
int unregister_cpu_under_node(unsigned int cpu, unsigned int nid) int unregister_cpu_under_node(unsigned int cpu, unsigned int nid)