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| author | Dan Williams <dan.j.williams@intel.com> | 2017-05-30 08:12:19 +0200 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2017-06-28 01:44:13 +0200 |
| commit | c9e582aa689f5418ca30e1e7a975039772c3a757 (patch) | |
| tree | 34ea0b661819d2e80c80a2197ad264e55b0fffc6 /drivers/nvdimm/bus.c | |
| parent | libnvdimm, pmem: fix persistence warning (diff) | |
| download | linux-c9e582aa689f5418ca30e1e7a975039772c3a757.tar.xz linux-c9e582aa689f5418ca30e1e7a975039772c3a757.zip | |
libnvdimm, nfit: enable support for volatile ranges
Allow volatile nfit ranges to participate in all the same infrastructure
provided for persistent memory regions. A resulting resulting namespace
device will still be called "pmem", but the parent region type will be
"nd_volatile". This is in preparation for disabling the dax ->flush()
operation in the pmem driver when it is hosted on a volatile range.
Cc: Jan Kara <jack@suse.cz>
Cc: Jeff Moyer <jmoyer@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm/bus.c')
| -rw-r--r-- | drivers/nvdimm/bus.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c index e9361bffe5ee..4cfba534814b 100644 --- a/drivers/nvdimm/bus.c +++ b/drivers/nvdimm/bus.c @@ -38,13 +38,13 @@ static int to_nd_device_type(struct device *dev) { if (is_nvdimm(dev)) return ND_DEVICE_DIMM; - else if (is_nd_pmem(dev)) + else if (is_memory(dev)) return ND_DEVICE_REGION_PMEM; else if (is_nd_blk(dev)) return ND_DEVICE_REGION_BLK; else if (is_nd_dax(dev)) return ND_DEVICE_DAX_PMEM; - else if (is_nd_pmem(dev->parent) || is_nd_blk(dev->parent)) + else if (is_nd_region(dev->parent)) return nd_region_to_nstype(to_nd_region(dev->parent)); return 0; @@ -56,7 +56,7 @@ static int nvdimm_bus_uevent(struct device *dev, struct kobj_uevent_env *env) * Ensure that region devices always have their numa node set as * early as possible. */ - if (is_nd_pmem(dev) || is_nd_blk(dev)) + if (is_nd_region(dev)) set_dev_node(dev, to_nd_region(dev)->numa_node); return add_uevent_var(env, "MODALIAS=" ND_DEVICE_MODALIAS_FMT, to_nd_device_type(dev)); @@ -65,7 +65,7 @@ static int nvdimm_bus_uevent(struct device *dev, struct kobj_uevent_env *env) static struct module *to_bus_provider(struct device *dev) { /* pin bus providers while regions are enabled */ - if (is_nd_pmem(dev) || is_nd_blk(dev)) { + if (is_nd_region(dev)) { struct nvdimm_bus *nvdimm_bus = walk_to_nvdimm_bus(dev); return nvdimm_bus->nd_desc->module; |