On Wed, 2019-01-30 at 21:59 +1100, Oliver O'Halloran wrote:
> Newer kernels provide the "supported_alignments" sysfs attribute that
> indicates what alignments can be used with a PFN or DAX namespace. This
> patch adds the plumbing inside of libndctl to allow users to query this
> information through using:
> ndctl_{dax|pfn}_get_supported_alignment(), and
> ndctl_{dax|pfn}_get_num_alignments()
>
> Signed-off-by: Oliver O'Halloran <[email protected]>
> ---
> v5: Fixed comment wording
>
> v4: Changed return code of ndctl_pfn_get_supported_alignment from -1 to
> -1 to -EINVAL.
>
> Reworded comment about why we default to 4K and 2M alignments when
> the sysfs attribute is missing.
>
> Shuffled around prototypes in ndctl.h.
>
> 80 char compliance fixes.
>
> rebased onto pending branch
>
> v3: Changed the return type of the *_get_supported_alignment() functions
> to unsigned long to match the existing *_get_alignment() functions.
> ---
> ndctl/lib/libndctl.c | 43 ++++++++++++++++++++++++++++++++++++++++++
> ndctl/lib/libndctl.sym | 4 ++++
> ndctl/libndctl.h | 4 ++++
> 3 files changed, 51 insertions(+)
>
Thanks for the reworks, Oliver. I've applied the series.
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