We already have generic code to allocate vmemmap with regular pages,
use it.
Signed-off-by: Johannes Weiner <han...@cmpxchg.org>
---
arch/x86/mm/init_64.c | 81 ++++++++++++++++++++++++---------------------------
1 file changed, 38 insertions(+), 43 deletions(-)
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 1acba7e..134c85d 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -1282,17 +1282,15 @@ static long __meminitdata addr_start, addr_end;
static void __meminitdata *p_start, *p_end;
static int __meminitdata node_start;
-int __meminit vmemmap_populate(unsigned long start, unsigned long end, int
node)
+static int __meminit vmemmap_populate_hugepages(unsigned long start,
+ unsigned long end, int node)
{
unsigned long addr;
- unsigned long next;
pgd_t *pgd;
pud_t *pud;
pmd_t *pmd;
- for (addr = start; addr < end; addr = next) {
- void *p = NULL;
-
+ for (addr = start; addr < end; addr += PMD_SIZE) {
pgd = vmemmap_pgd_populate(addr, node);
if (!pgd)
return -ENOMEM;
@@ -1301,53 +1299,50 @@ int __meminit vmemmap_populate(unsigned long start,
unsigned long end, int node)
if (!pud)
return -ENOMEM;
- if (!cpu_has_pse) {
- next = (addr + PAGE_SIZE) & PAGE_MASK;
- pmd = vmemmap_pmd_populate(pud, addr, node);
-
- if (!pmd)
- return -ENOMEM;
-
- p = vmemmap_pte_populate(pmd, addr, node);
+ pmd = pmd_offset(pud, addr);
+ if (pmd_none(*pmd)) {
+ pte_t entry;
+ void *p;
+ p = vmemmap_alloc_block_buf(PMD_SIZE, node);
if (!p)
return -ENOMEM;
- } else {
- next = pmd_addr_end(addr, end);
- pmd = pmd_offset(pud, addr);
- if (pmd_none(*pmd)) {
- pte_t entry;
-
- p = vmemmap_alloc_block_buf(PMD_SIZE, node);
- if (!p)
- return -ENOMEM;
-
- entry = pfn_pte(__pa(p) >> PAGE_SHIFT,
- PAGE_KERNEL_LARGE);
- set_pmd(pmd, __pmd(pte_val(entry)));
-
- /* check to see if we have contiguous blocks */
- if (p_end != p || node_start != node) {
- if (p_start)
- printk(KERN_DEBUG " [%lx-%lx]
PMD -> [%p-%p] on node %d\n",
- addr_start, addr_end-1,
p_start, p_end-1, node_start);
- addr_start = addr;
- node_start = node;
- p_start = p;
- }
-
- addr_end = addr + PMD_SIZE;
- p_end = p + PMD_SIZE;
- } else
- vmemmap_verify((pte_t *)pmd, node, addr, next);
- }
+ entry = pfn_pte(__pa(p) >> PAGE_SHIFT,
+ PAGE_KERNEL_LARGE);
+ set_pmd(pmd, __pmd(pte_val(entry)));
+
+ /* check to see if we have contiguous blocks */
+ if (p_end != p || node_start != node) {
+ if (p_start)
+ printk(KERN_DEBUG " [%lx-%lx] PMD ->
[%p-%p] on node %d\n",
+ addr_start, addr_end-1, p_start,
p_end-1, node_start);
+ addr_start = addr;
+ node_start = node;
+ p_start = p;
+ }
+ addr_end = addr + PMD_SIZE;
+ p_end = p + PMD_SIZE;
+ } else
+ vmemmap_verify((pte_t *)pmd, node, addr, next);
}
- sync_global_pgds(start, end - 1);
return 0;
}
+int __meminit vmemmap_populate(unsigned long start, unsigned long end, int
node)
+{
+ int err;
+
+ if (cpu_has_pse)
+ err = vmemmap_populate_hugepages(start, end, node);
+ else
+ err = vmemmap_populate_basepages(start, end, node);
+ if (!err)
+ sync_global_pgds(start, end - 1);
+ return err;
+}
+
#if defined(CONFIG_MEMORY_HOTPLUG_SPARSE) &&
defined(CONFIG_HAVE_BOOTMEM_INFO_NODE)
void register_page_bootmem_memmap(unsigned long section_nr,
struct page *start_page, unsigned long size)
--
1.7.11.7
--
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