[PATCH 2/6] libnvdimm: Add nd_region_destroy()
From: Oliver O'Halloran <oohall@gmail.com>
Date: 2018-03-23 08:12:05
Also in:
linux-devicetree, nvdimm
Subsystem:
libnvdimm: non-volatile memory device subsystem, the rest · Maintainers:
Dan Williams, Vishal Verma, Dave Jiang, Alison Schofield, Linus Torvalds
Possibly related (same subject, not in this thread)
- 2018-03-25 · Re: [PATCH 2/6] libnvdimm: Add nd_region_destroy() · Balbir Singh <hidden>
- 2018-03-23 · Re: [PATCH 2/6] libnvdimm: Add nd_region_destroy() · Dan Williams <hidden>
Currently there's no way to remove a region from and nvdimm_bus without tearing down the whole bus. This patch adds an API for removing a single region from the bus so that we can implement a sensible unbind operation for the of_nd_region platform driver. Signed-off-by: Oliver O'Halloran <oohall@gmail.com> --- drivers/nvdimm/region_devs.c | 6 ++++++ include/linux/libnvdimm.h | 1 + 2 files changed, 7 insertions(+)
diff --git a/drivers/nvdimm/region_devs.c b/drivers/nvdimm/region_devs.c
index 2f1d5771100e..76f46fd1fae0 100644
--- a/drivers/nvdimm/region_devs.c
+++ b/drivers/nvdimm/region_devs.c@@ -1039,6 +1039,12 @@ struct nd_region *nvdimm_blk_region_create(struct nvdimm_bus *nvdimm_bus, } EXPORT_SYMBOL_GPL(nvdimm_blk_region_create); +void nd_region_destroy(struct nd_region *region) +{ + nd_device_unregister(®ion->dev, ND_SYNC); +} +EXPORT_SYMBOL_GPL(nd_region_destroy); + struct nd_region *nvdimm_volatile_region_create(struct nvdimm_bus *nvdimm_bus, struct nd_region_desc *ndr_desc) {
diff --git a/include/linux/libnvdimm.h b/include/linux/libnvdimm.h
index f61cb5050297..df21ca176e98 100644
--- a/include/linux/libnvdimm.h
+++ b/include/linux/libnvdimm.h@@ -192,6 +192,7 @@ struct nd_region *nvdimm_blk_region_create(struct nvdimm_bus *nvdimm_bus, struct nd_region_desc *ndr_desc); struct nd_region *nvdimm_volatile_region_create(struct nvdimm_bus *nvdimm_bus, struct nd_region_desc *ndr_desc); +void nd_region_destroy(struct nd_region *region); void *nd_region_provider_data(struct nd_region *nd_region); void *nd_blk_region_provider_data(struct nd_blk_region *ndbr); void nd_blk_region_set_provider_data(struct nd_blk_region *ndbr, void *data);
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2.9.5