Thread (13 messages) 13 messages, 5 authors, 2011-07-24

Re: [PATCH 2/5] hugetlb: add phys addr to struct huge_bootmem_page

From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: 2011-06-28 21:40:50
Also in: lkml

On Tue, 2011-06-28 at 14:54 -0500, Becky Bruce wrote:
quoted hunk ↗ jump to hunk
 struct page *alloc_huge_page_node(struct hstate *h, int nid);
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 6402458..2db81ea 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -1105,8 +1105,14 @@ static void __init
gather_bootmem_prealloc(void)
        struct huge_bootmem_page *m;
 
        list_for_each_entry(m, &huge_boot_pages, list) {
-               struct page *page = virt_to_page(m);
                struct hstate *h = m->hstate;
+#ifdef CONFIG_HIGHMEM
+               struct page *page = pfn_to_page(m->phys >>
PAGE_SHIFT);
+               free_bootmem_late((unsigned long)m,
+                                 sizeof(struct huge_bootmem_page));
+#else
+               struct page *page = virt_to_page(m);
+#endif
                __ClearPageReserved(page);
Why do you add free_bootmem_late() in the highmem case and not the
normal case ?

Cheers,
Ben.
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