mm: pass the vmem_altmap to vmemmap_free
We can just pass this on instead of having to do a radix tree lookup
without proper locking a few levels into the callchain.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c
index 779b74a..db7d4e0 100644
--- a/arch/powerpc/mm/init_64.c
+++ b/arch/powerpc/mm/init_64.c
@@ -254,7 +254,8 @@ static unsigned long vmemmap_list_free(unsigned long start)
return vmem_back->phys;
}
-void __ref vmemmap_free(unsigned long start, unsigned long end)
+void __ref vmemmap_free(unsigned long start, unsigned long end,
+ struct vmem_altmap *altmap)
{
unsigned long page_size = 1 << mmu_psize_defs[mmu_vmemmap_psize].shift;
unsigned long page_order = get_order(page_size);
@@ -265,7 +266,6 @@ void __ref vmemmap_free(unsigned long start, unsigned long end)
for (; start < end; start += page_size) {
unsigned long nr_pages, addr;
- struct vmem_altmap *altmap;
struct page *section_base;
struct page *page;
@@ -285,7 +285,6 @@ void __ref vmemmap_free(unsigned long start, unsigned long end)
section_base = pfn_to_page(vmemmap_section_start(start));
nr_pages = 1 << page_order;
- altmap = to_vmem_altmap((unsigned long) section_base);
if (altmap) {
vmem_altmap_free(altmap, nr_pages);
} else if (PageReserved(page)) {