The patch titled
mm: add numa node symlink for cpu devices in sysfs
has been removed from the -mm tree. Its filename was
mm-add-numa-node-symlink-for-cpu-devices-in-sysfs.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: mm: add numa node symlink for cpu devices in sysfs
From: Alex Chiang <achiang@xxxxxx>
You can discover which CPUs belong to a NUMA node by examining
/sys/devices/system/node/node#/
However, it's not convenient to go in the other direction, when looking at
/sys/devices/system/cpu/cpu#/
Yes, you can muck about in sysfs, but adding these symlinks makes life a
lot more convenient.
Signed-off-by: Alex Chiang <achiang@xxxxxx>
Acked-by: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Gary Hade <garyhade@xxxxxxxxxx>
Cc: Badari Pulavarty <pbadari@xxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Greg KH <greg@xxxxxxxxx>
Cc: Randy Dunlap <randy.dunlap@xxxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/base/node.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff -puN drivers/base/node.c~mm-add-numa-node-symlink-for-cpu-devices-in-sysfs drivers/base/node.c
--- a/drivers/base/node.c~mm-add-numa-node-symlink-for-cpu-devices-in-sysfs
+++ a/drivers/base/node.c
@@ -271,6 +271,7 @@ struct node node_devices[MAX_NUMNODES];
*/
int register_cpu_under_node(unsigned int cpu, unsigned int nid)
{
+ int ret;
struct sys_device *obj;
if (!node_online(nid))
@@ -280,9 +281,15 @@ int register_cpu_under_node(unsigned int
if (!obj)
return 0;
- return sysfs_create_link(&node_devices[nid].sysdev.kobj,
+ ret = sysfs_create_link(&node_devices[nid].sysdev.kobj,
&obj->kobj,
kobject_name(&obj->kobj));
+ if (ret)
+ return ret;
+
+ return sysfs_create_link(&obj->kobj,
+ &node_devices[nid].sysdev.kobj,
+ kobject_name(&node_devices[nid].sysdev.kobj));
}
int unregister_cpu_under_node(unsigned int cpu, unsigned int nid)
@@ -298,6 +305,8 @@ int unregister_cpu_under_node(unsigned i
sysfs_remove_link(&node_devices[nid].sysdev.kobj,
kobject_name(&obj->kobj));
+ sysfs_remove_link(&obj->kobj,
+ kobject_name(&node_devices[nid].sysdev.kobj));
return 0;
}
_
Patches currently in -mm which might be from achiang@xxxxxx are
origin.patch
linux-next.patch
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