Expose supported size align as a namespace RO attribute. Usespace can use this to validate the size argument specified when creating a new namespace.
Signed-off-by: Aneesh Kumar K.V <[email protected]> --- drivers/nvdimm/namespace_devs.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c index 6a83db9f8734..22c714469f87 100644 --- a/drivers/nvdimm/namespace_devs.c +++ b/drivers/nvdimm/namespace_devs.c @@ -1684,6 +1684,14 @@ static ssize_t force_raw_show(struct device *dev, } static DEVICE_ATTR_RW(force_raw); +static ssize_t supported_size_align_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return sprintf(buf, "%ld\n", arch_namespace_align_size()); +} +static DEVICE_ATTR_RO(supported_size_align); + + static struct attribute *nd_namespace_attributes[] = { &dev_attr_nstype.attr, &dev_attr_size.attr, @@ -1696,6 +1704,7 @@ static struct attribute *nd_namespace_attributes[] = { &dev_attr_sector_size.attr, &dev_attr_dpa_extents.attr, &dev_attr_holder_class.attr, + &dev_attr_supported_size_align.attr, NULL, }; -- 2.23.0 _______________________________________________ Linux-nvdimm mailing list -- [email protected] To unsubscribe send an email to [email protected]
