diff options
| author | Toshi Kani <[email protected]> | 2015-06-19 18:18:34 +0000 |
|---|---|---|
| committer | Dan Williams <[email protected]> | 2015-06-26 15:23:38 +0000 |
| commit | 74ae66c3b14ffa94c8d2dea201cdf8e6203d13d5 (patch) | |
| tree | 471a82ba5030b23c258a094aa9e1ee816e227c31 /net/switchdev/switchdev.c | |
| parent | libnvdimm: Set numa_node to NVDIMM devices (diff) | |
| download | kernel-74ae66c3b14ffa94c8d2dea201cdf8e6203d13d5.tar.gz kernel-74ae66c3b14ffa94c8d2dea201cdf8e6203d13d5.zip | |
libnvdimm: Add sysfs numa_node to NVDIMM devices
Add support of sysfs 'numa_node' to I/O-related NVDIMM devices
under /sys/bus/nd/devices, regionN, namespaceN.0, and bttN.x.
An example of numa_node values on a 2-socket system with a single
NVDIMM range on each socket is shown below.
/sys/bus/nd/devices
|-- btt0.0/numa_node:0
|-- btt1.0/numa_node:1
|-- btt1.1/numa_node:1
|-- namespace0.0/numa_node:0
|-- namespace1.0/numa_node:1
|-- region0/numa_node:0
|-- region1/numa_node:1
These numa_node files are then linked under the block class of
their device names.
/sys/class/block/pmem0/device/numa_node:0
/sys/class/block/pmem1s/device/numa_node:1
This enables numactl(8) to accept 'block:' and 'file:' paths of
pmem and btt devices as shown in the examples below.
numactl --preferred block:pmem0 --show
numactl --preferred file:/dev/pmem1s --show
Signed-off-by: Toshi Kani <[email protected]>
Signed-off-by: Dan Williams <[email protected]>
Diffstat (limited to 'net/switchdev/switchdev.c')
0 files changed, 0 insertions, 0 deletions