Fir daxctl device listings, if in 'system-ram' mode, it is useful to know whether the memory associated with the device is online or not. Since the memory is comprised of a number of 'memblocks', and it is possible (albeit rare) to have a subset of them online, and the rest offline, we can't just use a boolean online-or-offline flag for the state.
Add a couple of counts, one for the total number of memblocks associated with the device, and another for the ones that are online. Link: https://github.com/pmem/ndctl/issues/139 Cc: Dan Williams <[email protected]> Cc: Dave Hansen <[email protected]> Reported-by: Steve Scargall <[email protected]> Signed-off-by: Vishal Verma <[email protected]> --- util/json.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/util/json.c b/util/json.c index ca0167b..a8d2412 100644 --- a/util/json.c +++ b/util/json.c @@ -482,6 +482,17 @@ struct json_object *util_daxctl_dev_to_json(struct daxctl_dev *dev, json_object_object_add(jdev, "mode", jobj); if (mem && daxctl_dev_get_resource(dev) != 0) { + int num_sections = daxctl_memory_num_sections(mem); + int num_online = daxctl_memory_is_online(mem); + + jobj = json_object_new_int(num_online); + if (jobj) + json_object_object_add(jdev, "online_memblocks", jobj); + + jobj = json_object_new_int(num_sections); + if (jobj) + json_object_object_add(jdev, "total_memblocks", jobj); + movable = daxctl_memory_is_movable(mem); if (movable == 1) jobj = json_object_new_boolean(true); -- 2.30.2 _______________________________________________ Linux-nvdimm mailing list -- [email protected] To unsubscribe send an email to [email protected]
