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| author | Dan Williams <dan.j.williams@intel.com> | 2016-03-09 17:15:43 -0800 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2016-03-09 17:15:43 -0800 |
| commit | 489011652a2d5555901def04c24d68874e8ba9a1 (patch) | |
| tree | f4d000e5ae63350016d12e6ccb52b0809bb814df /drivers/nvdimm/namespace_devs.c | |
| parent | 59e6473980f321c16299e12db69d1fabc2644a6f (diff) | |
| parent | ff8e92d5d94b99aab39f439d532cba435947dfc0 (diff) | |
Merge branch 'for-4.6/pfn' into libnvdimm-for-nextlibnvdimm-for-4.6
Diffstat (limited to 'drivers/nvdimm/namespace_devs.c')
| -rw-r--r-- | drivers/nvdimm/namespace_devs.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c index 9edf7eb7d17c..f5cb88601359 100644 --- a/drivers/nvdimm/namespace_devs.c +++ b/drivers/nvdimm/namespace_devs.c @@ -133,6 +133,7 @@ bool nd_is_uuid_unique(struct device *dev, u8 *uuid) bool pmem_should_map_pages(struct device *dev) { struct nd_region *nd_region = to_nd_region(dev->parent); + struct nd_namespace_io *nsio; if (!IS_ENABLED(CONFIG_ZONE_DEVICE)) return false; @@ -143,6 +144,12 @@ bool pmem_should_map_pages(struct device *dev) if (is_nd_pfn(dev) || is_nd_btt(dev)) return false; + nsio = to_nd_namespace_io(dev); + if (region_intersects(nsio->res.start, resource_size(&nsio->res), + IORESOURCE_SYSTEM_RAM, + IORES_DESC_NONE) == REGION_MIXED) + return false; + #ifdef ARCH_MEMREMAP_PMEM return ARCH_MEMREMAP_PMEM == MEMREMAP_WB; #else |