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mm: drop useless local parameters of __register_one_node() 

__register_one_node() initializes local parameters "p_node" & "parent"
for register_node().

But, register_node() does not use them.

Remove the related code of "parent" node, cleanup __register_one_node()
and register_node().

Link: http://lkml.kernel.org/r/1498013846-20149-1-git-send-email-douly.fnst@cn.fujitsu.com
Signed-off-by: Dou Liyang <douly.fnst@cn.fujitsu.com>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: <isimatu.yasuaki@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:
Dou Liyang 2017-07-10 15:49:20 -07:00 committed by Linus Torvalds
parent 727c080f03
commit a7be6e5a7f
1 changed files with 2 additions and 7 deletions
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9
drivers/base/node.c
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@ -288,7 +288,7 @@ static void node_device_release(struct device *dev)
* *
* Initialize and register the node device. * Initialize and register the node device.
*/ */
static int register_node(struct node *node, int num, struct node *parent) static int register_node(struct node *node, int num)
{ {
int error; int error;
@ -567,19 +567,14 @@ static void init_node_hugetlb_work(int nid) { }
int __register_one_node(int nid) int __register_one_node(int nid)
{ {
int p_node = parent_node(nid);
struct node *parent = NULL;
int error; int error;
int cpu; int cpu;
if (p_node != nid)
parent = node_devices[p_node];
node_devices[nid] = kzalloc(sizeof(struct node), GFP_KERNEL); node_devices[nid] = kzalloc(sizeof(struct node), GFP_KERNEL);
if (!node_devices[nid]) if (!node_devices[nid])
return -ENOMEM; return -ENOMEM;
error = register_node(node_devices[nid], nid, parent); error = register_node(node_devices[nid], nid);
/* link cpu under this node */ /* link cpu under this node */
for_each_present_cpu(cpu) { for_each_present_cpu(cpu) {