libnvdimm, pfn: fix ARCH=alpha allmodconfig build failure

I had relied on the kbuild robot for cross build coverage, however it
only builds alpha_defconfig.  Switch from HPAGE_SIZE to PMD_SIZE, which
is more widely defined.

Fixes: 658922e57b ("libnvdimm, pfn: fix memmap reservation sizing")
Cc: <stable@vger.kernel.org>
Reported-by: Guenter Roeck <guenter@roeck-us.net>
Tested-by: Guenter Roeck <guenter@roeck-us.net>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2016-05-06 10:20:10 -07:00
parent 2eea65829d
commit 1b8d2afde5

View File

@ -402,9 +402,9 @@ static int nd_pfn_init(struct nd_pfn *nd_pfn)
/*
* vmemmap_populate_hugepages() allocates the memmap array in
* HPAGE_SIZE chunks.
* PMD_SIZE chunks.
*/
memmap_size = ALIGN(64 * npfns, HPAGE_SIZE);
memmap_size = ALIGN(64 * npfns, PMD_SIZE);
offset = ALIGN(start + SZ_8K + memmap_size, nd_pfn->align)
- start;
} else if (nd_pfn->mode == PFN_MODE_RAM)