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tools/testing/nvdimm: unit test for acpi_nvdimm_notify()

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Trigger an nmemX/nfit/flags attribute to fire an event whenever a
smart-threshold DSM is received.

Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams
2016-08-22 19:23:25 -07:00
parent ba9c8dd3c2
commit 231bf117aa
3 changed files with 53 additions and 3 deletions
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10
drivers/acpi/nfit/core.c
View File

@@ -1248,7 +1248,7 @@ static struct nvdimm *acpi_nfit_dimm_by_handle(struct acpi_nfit_desc *acpi_desc,
return NULL;
}
static void __acpi_nvdimm_notify(struct device *dev, u32 event)
void __acpi_nvdimm_notify(struct device *dev, u32 event)
{
struct nfit_mem *nfit_mem;
struct acpi_nfit_desc *acpi_desc;
@@ -1274,6 +1274,7 @@ static void __acpi_nvdimm_notify(struct device *dev, u32 event)
if (nfit_mem && nfit_mem->flags_attr)
sysfs_notify_dirent(nfit_mem->flags_attr);
}
EXPORT_SYMBOL_GPL(__acpi_nvdimm_notify);
static void acpi_nvdimm_notify(acpi_handle handle, u32 event, void *data)
{
@@ -1365,12 +1366,15 @@ static void shutdown_dimm_notify(void *data)
* notifications.
*/
list_for_each_entry(nfit_mem, &acpi_desc->dimms, list) {
struct acpi_device *adev_dimm = nfit_mem->adev;
if (nfit_mem->flags_attr) {
sysfs_put(nfit_mem->flags_attr);
nfit_mem->flags_attr = NULL;
}
acpi_remove_notify_handler(nfit_mem->adev->handle,
ACPI_DEVICE_NOTIFY, acpi_nvdimm_notify);
if (adev_dimm)
acpi_remove_notify_handler(adev_dimm->handle,
ACPI_DEVICE_NOTIFY, acpi_nvdimm_notify);
}
mutex_unlock(&acpi_desc->init_mutex);
}

1
drivers/acpi/nfit/nfit.h
View File

@@ -233,5 +233,6 @@ static inline struct acpi_nfit_desc *to_acpi_desc(
const u8 *to_nfit_uuid(enum nfit_uuids id);
int acpi_nfit_init(struct acpi_nfit_desc *acpi_desc, void *nfit, acpi_size sz);
void __acpi_nfit_notify(struct device *dev, acpi_handle handle, u32 event);
void __acpi_nvdimm_notify(struct device *dev, u32 event);
void acpi_nfit_desc_init(struct acpi_nfit_desc *acpi_desc, struct device *dev);
#endif /* __NFIT_H__ */