memremap: drop private struct page_map

'struct page_map' is a private structure of 'struct dev_pagemap' but the
latter replicates all the same fields as the former so there isn't much
value in it. Thus drop it in favour of a completely public struct.

This is a clean up in preperation for a more generally useful
'devm_memeremap_pages' interface.

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/include/linux/memremap.h b/include/linux/memremap.h
index 3fddcfe57bb0..1cb5f39d25c1 100644
--- a/include/linux/memremap.h
+++ b/include/linux/memremap.h
@@ -113,8 +113,9 @@ typedef void (*dev_page_free_t)(struct page *page, void *data);
 struct dev_pagemap {
         dev_page_fault_t page_fault;
         dev_page_free_t page_free;
-        struct vmem_altmap *altmap;
-        const struct resource *res;
+        struct vmem_altmap altmap;
+        bool altmap_valid;
+        struct resource res;
         struct percpu_ref *ref;
         struct device *dev;
         void *data;