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libnvdimm: async notification support

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In preparation for asynchronous address range scrub support add an
ability for the pmem driver to dynamically consume address range scrub
results.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams
2016-02-18 10:29:49 -08:00
parent 5faecf4eb0
commit 719994660c
5 changed files with 62 additions and 0 deletions
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15
drivers/nvdimm/pmem.c
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@@ -488,12 +488,27 @@ static int nd_pmem_remove(struct device *dev)
return 0;
}
static void nd_pmem_notify(struct device *dev, enum nvdimm_event event)
{
struct pmem_device *pmem = dev_get_drvdata(dev);
struct nd_namespace_common *ndns = pmem->ndns;
if (event != NVDIMM_REVALIDATE_POISON)
return;
if (is_nd_btt(dev))
nvdimm_namespace_add_poison(ndns, &pmem->bb, 0);
else
nvdimm_namespace_add_poison(ndns, &pmem->bb, pmem->data_offset);
}
MODULE_ALIAS("pmem");
MODULE_ALIAS_ND_DEVICE(ND_DEVICE_NAMESPACE_IO);
MODULE_ALIAS_ND_DEVICE(ND_DEVICE_NAMESPACE_PMEM);
static struct nd_device_driver nd_pmem_driver = {
.probe = nd_pmem_probe,
.remove = nd_pmem_remove,
.notify = nd_pmem_notify,
.drv = {
.name = "nd_pmem",
},