libnvdimm/pfn: Remove dax_label_reserve

The reserve was for an abandoned effort to add label (partitioning
support) to device-dax instances. Remove it.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>

diff --git a/drivers/nvdimm/pfn_devs.c b/drivers/nvdimm/pfn_devs.c
index ba74a341da5ddd380ff3175fb257a45aa57676e2..d271bd731af7cd9b5f5f6d1fc30280f3ca2ab170 100644 (file)
--- a/drivers/nvdimm/pfn_devs.c
+++ b/drivers/nvdimm/pfn_devs.c
@@ -690,7 +690,6 @@ static void trim_pfn_device(struct nd_pfn *nd_pfn, u32 *start_pad, u32 *end_trun
 
 static int nd_pfn_init(struct nd_pfn *nd_pfn)
 {
-       u32 dax_label_reserve = is_nd_dax(&nd_pfn->dev) ? SZ_128K : 0;
        struct nd_namespace_common *ndns = nd_pfn->ndns;
        struct nd_namespace_io *nsio = to_nd_namespace_io(&ndns->dev);
        u32 start_pad, end_trunc, reserve = info_block_reserve();
@@ -748,11 +747,10 @@ static int nd_pfn_init(struct nd_pfn *nd_pfn)
                 * when populating the vmemmap. This *should* be equal to
                 * PMD_SIZE for most architectures.
                 */
-               offset = ALIGN(start + reserve + 64 * npfns + dax_label_reserve,
+               offset = ALIGN(start + reserve + 64 * npfns,
                                max(nd_pfn->align, PMD_SIZE)) - start;
        } else if (nd_pfn->mode == PFN_MODE_RAM)
-               offset = ALIGN(start + reserve + dax_label_reserve,
-                               nd_pfn->align) - start;
+               offset = ALIGN(start + reserve, nd_pfn->align) - start;
        else
                return -ENXIO;