On Thu, 2015-06-25 at 05:37 -0400, Dan Williams wrote: > From: Toshi Kani <toshi.kani@xxxxxx> > > Add support of sysfs 'numa_node' to I/O-related NVDIMM devices > under /sys/bus/nd/devices, regionN, namespaceN.0, and bttN. > When bttN is not set up, its numa_node returns -1 (NUMA_NO_NODE). > > 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/numa_node:-1 > |-- btt1/numa_node:0 > |-- 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/pmem0s/device/numa_node:0 > /sys/class/block/pmem1/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/pmem0s --show > > Signed-off-by: Toshi Kani <toshi.kani@xxxxxx> > Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx> Can you please update the commit log with the following? It reflects the changes in sysfs btt files. Thanks, -Toshi ===== From: Toshi Kani <toshi.kani@xxxxxx> 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 <toshi.kani@xxxxxx> Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
