The patch titled mm: add numa node symlink for cpu devices in sysfs has been added to the -mm tree. Its filename is mm-add-numa-node-symlink-for-cpu-devices-in-sysfs.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find out what to do about this 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 page-types-learn-to-describe-flags-directly-from-command-line.patch page-types-whitespace-alignment.patch page-types-exit-early-when-invoked-with-d-describe.patch mm-add-numa-node-symlink-for-memory-section-in-sysfs.patch mm-refactor-register_cpu_under_node.patch mm-refactor-unregister_cpu_under_node.patch mm-add-numa-node-symlink-for-cpu-devices-in-sysfs.patch documentation-abi-sys-devices-system-cpu-cpu-node.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html