libnvdimm, pfn: fix pfn seed creation
Similar to btt, plant a new pfn seed when the existing one is activated. Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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a34d5e8a6a
Коммит
2dc43331e3
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@ -1707,6 +1707,18 @@ void nd_region_create_blk_seed(struct nd_region *nd_region)
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nd_device_register(nd_region->ns_seed);
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}
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void nd_region_create_pfn_seed(struct nd_region *nd_region)
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{
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WARN_ON(!is_nvdimm_bus_locked(&nd_region->dev));
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nd_region->pfn_seed = nd_pfn_create(nd_region);
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/*
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* Seed creation failures are not fatal, provisioning is simply
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* disabled until memory becomes available
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*/
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if (!nd_region->pfn_seed)
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dev_err(&nd_region->dev, "failed to create pfn namespace\n");
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}
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void nd_region_create_btt_seed(struct nd_region *nd_region)
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{
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WARN_ON(!is_nvdimm_bus_locked(&nd_region->dev));
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@ -52,6 +52,7 @@ void nd_region_probe_success(struct nvdimm_bus *nvdimm_bus, struct device *dev);
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struct nd_region;
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void nd_region_create_blk_seed(struct nd_region *nd_region);
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void nd_region_create_btt_seed(struct nd_region *nd_region);
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void nd_region_create_pfn_seed(struct nd_region *nd_region);
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void nd_region_disable(struct nvdimm_bus *nvdimm_bus, struct device *dev);
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int nvdimm_bus_create_ndctl(struct nvdimm_bus *nvdimm_bus);
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void nvdimm_bus_destroy_ndctl(struct nvdimm_bus *nvdimm_bus);
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@ -490,6 +490,13 @@ static void nd_region_notify_driver_action(struct nvdimm_bus *nvdimm_bus,
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nd_region_create_blk_seed(nd_region);
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nvdimm_bus_unlock(dev);
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}
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if (is_nd_pfn(dev) && probe) {
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nd_region = to_nd_region(dev->parent);
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nvdimm_bus_lock(dev);
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if (nd_region->pfn_seed == dev)
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nd_region_create_pfn_seed(nd_region);
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nvdimm_bus_unlock(dev);
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}
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}
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void nd_region_probe_success(struct nvdimm_bus *nvdimm_bus, struct device *dev)
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