libnvdimm, dax: record the specified alignment of a dax-device instance
commit 45a0dac0 upstream. We want to use the alignment as the allocation and mapping unit. Previously this information was only useful for establishing the data offset, but now it is important to remember the granularity for the later use. Signed-off-by:Dan Williams <dan.j.williams@intel.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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