STRUCT NVDIMM_PMU(9)

💅 struct nvdimm_pmu(9) — Kernel API Manual 💅

okay bestie, this is the struct nvdimm_pmu(9) page from the Kernel API Manual, and it’s here to explain the data structure for the nvdimm perf driver. lowkey iconic. let’s get into it 🫶✨

🌸 NAME 🌸

struct nvdimm_pmu — data structure for nvdimm perf driver.

🦋 SYNOPSIS 🦋

       struct nvdimm_pmu {
           struct pmu pmu;
           struct device *dev;
           int cpu;
           struct hlist_node node;
           enum cpuhp_state cpuhp_state;
           struct cpumask arch_cpumask;
        };

🎀 Members 🎀

• pmu — pmu data structure for nvdimm performance stats. slay 💅
• dev — nvdimm device pointer.
• cpu — designated cpu for counter access.
• node — node for cpu hotplug notifier link.
• cpuhp_state — state for cpu hotplug notification.
• arch_cpumask — cpumask to get designated cpu for counter access.

🔥 SEE ALSO 🔥

Kernel file ./include/linux/nd.h, plus these besties right here:

• struct nd_namespace_common(9)
• struct nd_namespace_io(9)
• struct nd_namespace_pmem(9)
• nvdimm_read_bytes(9)
• nvdimm_write_bytes(9)

cute little sign-off: source/version is ./include/linux, date is October 2026, and this page is struct nvdimm_pmu(9) 🫶✨