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| author | Dan Williams <dan.j.williams@intel.com> | 2015-06-18 00:14:46 +0300 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2015-06-25 04:24:10 +0300 |
| commit | bf9bccc14c05dae8caba29df6187c731710f5380 (patch) | |
| tree | cbf00a172bc70598748231748ca2ad14867063ad /drivers/nvdimm/region.c | |
| parent | 4a826c83db4edc040da3a66dbefd53f0cfcf457d (diff) | |
| download | linux-bf9bccc14c05dae8caba29df6187c731710f5380.tar.xz | |
libnvdimm: pmem label sets and namespace instantiation.
A complete label set is a PMEM-label per-dimm per-interleave-set where
all the UUIDs match and the interleave set cookie matches the hosting
interleave set.
Present sysfs attributes for manipulation of a PMEM-namespace's
'alt_name', 'uuid', and 'size' attributes. A later patch will make
these settings persistent by writing back the label.
Note that PMEM allocations grow forwards from the start of an interleave
set (lowest dimm-physical-address (DPA)). BLK-namespaces that alias
with a PMEM interleave set will grow allocations backward from the
highest DPA.
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: Neil Brown <neilb@suse.de>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm/region.c')
| -rw-r--r-- | drivers/nvdimm/region.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/nvdimm/region.c b/drivers/nvdimm/region.c index ade3dba81afd..9aba44e483e0 100644 --- a/drivers/nvdimm/region.c +++ b/drivers/nvdimm/region.c @@ -61,8 +61,11 @@ static int child_unregister(struct device *dev, void *data) static int nd_region_remove(struct device *dev) { + struct nd_region *nd_region = to_nd_region(dev); + /* flush attribute readers and disable */ nvdimm_bus_lock(dev); + nd_region->ns_seed = NULL; dev_set_drvdata(dev, NULL); nvdimm_bus_unlock(dev); |