mm: split altmap memory map allocation from normal case
No functional changes, just untangling the call chain and document
why the altmap is passed around the hotplug code.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c
index 376dcf0..d012c9e 100644
--- a/mm/sparse-vmemmap.c
+++ b/mm/sparse-vmemmap.c
@@ -74,7 +74,7 @@
}
/* need to make sure size is all the same during early stage */
-static void * __meminit alloc_block_buf(unsigned long size, int node)
+void * __meminit vmemmap_alloc_block_buf(unsigned long size, int node)
{
void *ptr;
@@ -129,7 +129,7 @@
return pfn + nr_align;
}
-static void * __meminit altmap_alloc_block_buf(unsigned long size,
+void * __meminit altmap_alloc_block_buf(unsigned long size,
struct vmem_altmap *altmap)
{
unsigned long pfn, nr_pfns;
@@ -153,15 +153,6 @@
return ptr;
}
-/* need to make sure size is all the same during early stage */
-void * __meminit __vmemmap_alloc_block_buf(unsigned long size, int node,
- struct vmem_altmap *altmap)
-{
- if (altmap)
- return altmap_alloc_block_buf(size, altmap);
- return alloc_block_buf(size, node);
-}
-
void __meminit vmemmap_verify(pte_t *pte, int node,
unsigned long start, unsigned long end)
{
@@ -178,7 +169,7 @@
pte_t *pte = pte_offset_kernel(pmd, addr);
if (pte_none(*pte)) {
pte_t entry;
- void *p = alloc_block_buf(PAGE_SIZE, node);
+ void *p = vmemmap_alloc_block_buf(PAGE_SIZE, node);
if (!p)
return NULL;
entry = pfn_pte(__pa(p) >> PAGE_SHIFT, PAGE_KERNEL);