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| author | Dan Williams <dan.j.williams@intel.com> | 2016-01-15 16:56:26 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-01-15 17:56:32 -0800 |
| commit | d2c0f041e1bb1260629ecea2161adb9778945aa3 (patch) | |
| tree | ea5872316fdab194db4faa7a322c6d50652a1c72 /drivers/nvdimm/pfn_devs.c | |
| parent | 4b94ffdc4163bae1ec73b6e977ffb7a7da3d06d3 (diff) | |
| download | linux-d2c0f041e1bb1260629ecea2161adb9778945aa3.tar.gz linux-d2c0f041e1bb1260629ecea2161adb9778945aa3.tar.bz2 linux-d2c0f041e1bb1260629ecea2161adb9778945aa3.zip | |
libnvdimm, pfn, pmem: allocate memmap array in persistent memory
Use the new vmem_altmap capability to enable the pmem driver to arrange
for a struct page memmap to be established in persistent memory.
[linux@roeck-us.net: mn10300: declare __pfn_to_phys() to fix build error]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/nvdimm/pfn_devs.c')
| -rw-r--r-- | drivers/nvdimm/pfn_devs.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/nvdimm/pfn_devs.c b/drivers/nvdimm/pfn_devs.c index f9b674bc49db..0cc9048b86e2 100644 --- a/drivers/nvdimm/pfn_devs.c +++ b/drivers/nvdimm/pfn_devs.c @@ -83,8 +83,7 @@ static ssize_t mode_store(struct device *dev, if (strncmp(buf, "pmem\n", n) == 0 || strncmp(buf, "pmem", n) == 0) { - /* TODO: allocate from PMEM support */ - rc = -ENOTTY; + nd_pfn->mode = PFN_MODE_PMEM; } else if (strncmp(buf, "ram\n", n) == 0 || strncmp(buf, "ram", n) == 0) nd_pfn->mode = PFN_MODE_RAM; |