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libnvdimm: fix mode determination for e820 devices 

Correctly display "safe" mode when a btt is established on a e820/memmap
defined pmem namespace.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2016-01-23 15:34:10 -08:00
parent 92e963f50f
commit 9c41242817
1 changed files with 5 additions and 3 deletions
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8
drivers/nvdimm/namespace_devs.c
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@ -1277,10 +1277,12 @@ static ssize_t mode_show(struct device *dev,
device_lock(dev);
claim = ndns->claim;
if (pmem_should_map_pages(dev) || (claim && is_nd_pfn(claim)))
mode = "memory";
else if (claim && is_nd_btt(claim))
if (claim && is_nd_btt(claim))
mode = "safe";
else if (claim && is_nd_pfn(claim))
mode = "memory";
else if (!claim && pmem_should_map_pages(dev))
mode = "memory";
else
mode = "raw";
rc = sprintf(buf, "%s\n", mode);