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| author | Toshi Kani <toshi.kani@hp.com> | 2015-06-19 21:18:33 +0300 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2015-06-26 18:23:38 +0300 |
| commit | 41d7a6d637e1440f5410cb43c25a3c41255540c5 (patch) | |
| tree | ab171ea1b5a44823485b2776776c112da197703d /drivers/nvdimm/bus.c | |
| parent | 99759869faf15471cfce251bc138848d8af7d162 (diff) | |
| download | linux-41d7a6d637e1440f5410cb43c25a3c41255540c5.tar.xz | |
libnvdimm: Set numa_node to NVDIMM devices
ACPI NFIT table has System Physical Address Range Structure entries that
describe a proximity ID of each range when ACPI_NFIT_PROXIMITY_VALID is
set in the flags.
Change acpi_nfit_register_region() to map a proximity ID to its node ID,
and set it to a new numa_node field of nd_region_desc, which is then
conveyed to the nd_region device.
The device core arranges for btt and namespace devices to inherit their
node from their parent region.
Signed-off-by: Toshi Kani <toshi.kani@hp.com>
[djbw: move set_dev_node() from region.c to bus.c]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm/bus.c')
| -rw-r--r-- | drivers/nvdimm/bus.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c index ec59f1f26d95..205344643852 100644 --- a/drivers/nvdimm/bus.c +++ b/drivers/nvdimm/bus.c @@ -48,6 +48,12 @@ static int to_nd_device_type(struct device *dev) static int nvdimm_bus_uevent(struct device *dev, struct kobj_uevent_env *env) { + /* + * Ensure that region devices always have their numa node set as + * early as possible. + */ + if (is_nd_pmem(dev) || is_nd_blk(dev)) + set_dev_node(dev, to_nd_region(dev)->numa_node); return add_uevent_var(env, "MODALIAS=" ND_DEVICE_MODALIAS_FMT, to_nd_device_type(dev)); } |