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authorDan Williams <dan.j.williams@intel.com>2017-05-29 23:12:19 -0700
committerDan Williams <dan.j.williams@intel.com>2017-06-27 16:44:13 -0700
commitc9e582aa689f5418ca30e1e7a975039772c3a757 (patch)
tree34ea0b661819d2e80c80a2197ad264e55b0fffc6 /drivers/nvdimm/namespace_devs.c
parentc00b396ef782cb2296200d868a0013d8ca1d615e (diff)
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/namespace_devs.c')
-rw-r--r--drivers/nvdimm/namespace_devs.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c
index 4e9261ef8a95..57724da484d0 100644
--- a/drivers/nvdimm/namespace_devs.c
+++ b/drivers/nvdimm/namespace_devs.c
@@ -112,7 +112,7 @@ static int is_uuid_busy(struct device *dev, void *data)
static int is_namespace_uuid_busy(struct device *dev, void *data)
{
- if (is_nd_pmem(dev) || is_nd_blk(dev))
+ if (is_nd_region(dev))
return device_for_each_child(dev, data, is_uuid_busy);
return 0;
}
@@ -783,7 +783,7 @@ static int __reserve_free_pmem(struct device *dev, void *data)
struct nd_label_id label_id;
int i;
- if (!is_nd_pmem(dev))
+ if (!is_memory(dev))
return 0;
nd_region = to_nd_region(dev);
@@ -1872,7 +1872,7 @@ static struct device *nd_namespace_pmem_create(struct nd_region *nd_region)
struct resource *res;
struct device *dev;
- if (!is_nd_pmem(&nd_region->dev))
+ if (!is_memory(&nd_region->dev))
return NULL;
nspm = kzalloc(sizeof(*nspm), GFP_KERNEL);
@@ -2152,7 +2152,7 @@ static struct device **scan_labels(struct nd_region *nd_region)
}
dev->parent = &nd_region->dev;
devs[count++] = dev;
- } else if (is_nd_pmem(&nd_region->dev)) {
+ } else if (is_memory(&nd_region->dev)) {
/* clean unselected labels */
for (i = 0; i < nd_region->ndr_mappings; i++) {
struct list_head *l, *e;