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Date: Tue, 10 Nov 2009 15:36:54 -0700
From: Alex Chiang <achiang@...com>
To: akpm@...ux-foundation.org
Cc: linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: [PATCH v3 3/5] mm: refactor unregister_cpu_under_node()
By returning early if the node is not online, we can unindent the
interesting code by two levels.
No functional change.
Signed-off-by: Alex Chiang <achiang@...com>
---
drivers/base/node.c | 18 ++++++++++++------
1 files changed, 12 insertions(+), 6 deletions(-)
diff --git a/drivers/base/node.c b/drivers/base/node.c
index ef7dd22..ffda067 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -243,12 +243,18 @@ int register_cpu_under_node(unsigned int cpu, unsigned int nid)
int unregister_cpu_under_node(unsigned int cpu, unsigned int nid)
{
- if (node_online(nid)) {
- struct sys_device *obj = get_cpu_sysdev(cpu);
- if (obj)
- sysfs_remove_link(&node_devices[nid].sysdev.kobj,
- kobject_name(&obj->kobj));
- }
+ struct sys_device *obj;
+
+ if (!node_online(nid))
+ return 0;
+
+ obj = get_cpu_sysdev(cpu);
+ if (!obj)
+ return 0;
+
+ sysfs_remove_link(&node_devices[nid].sysdev.kobj,
+ kobject_name(&obj->kobj));
+
return 0;
}
--
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