nvdimm_has_flush(9)

okay bestie, welcome to nvdimm_has_flush(9) from the Kernel API Manual — yes, that manual, and yes, we’re doing this. 💖 It’s giving kernel-region realness, and the vibe check is all about write flushing requirements. 🫶

🌸 NAME 🌸

nvdimm_has_flush — determine write flushing requirements. periodt. 💅

✨ SYNOPSIS ✨

int nvdimm_has_flush (struct nd_region *nd_region );

That’s the whole signature, bestie — copy it exactly, no creative editing. 🎀

🦋 ARGUMENTS 🦋

• nd_region — interleaved pmem region. that’s the one and only argument, and yes she’s iconic. ✨

🔥 DESCRIPTION 🔥

Okay so here’s the tea, fr fr:

• Returns 1 if writes require flushing. 🔥
• Returns 0 if writes do not require flushing. ✨
• Returns -ENXIO if flushing capability can not be determined. 😭

No cap, that’s the whole return-value situation. 🫶

💜 SEE ALSO 💜

the whole friend group, all present and accounted for:

• Kernel file ./drivers/nvdimm/region_devs.c
• nd_region_to_nstype(9)
• nd_region_acquire_lane(9)
• generic_nvdimm_flush(9)

mwah 💋 — source/version: ./drivers/nvdimm, date: October 2026, from the Kernel API Manual. bye bestie! 🎀🌈