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-rw-r--r--arch/i386/mm/hugetlbpage.c23
1 files changed, 3 insertions, 20 deletions
diff --git a/arch/i386/mm/hugetlbpage.c b/arch/i386/mm/hugetlbpage.c
index 24c8a536b588..d524127c9afc 100644
--- a/arch/i386/mm/hugetlbpage.c
+++ b/arch/i386/mm/hugetlbpage.c
@@ -22,20 +22,14 @@ pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr)
22{ 22{
23 pgd_t *pgd; 23 pgd_t *pgd;
24 pud_t *pud; 24 pud_t *pud;
25 pmd_t *pmd;
26 pte_t *pte = NULL; 25 pte_t *pte = NULL;
27 26
28 pgd = pgd_offset(mm, addr); 27 pgd = pgd_offset(mm, addr);
29 pud = pud_alloc(mm, pgd, addr); 28 pud = pud_alloc(mm, pgd, addr);
30 pmd = pmd_alloc(mm, pud, addr); 29 if (pud)
30 pte = (pte_t *) pmd_alloc(mm, pud, addr);
31 BUG_ON(pte && !pte_none(*pte) && !pte_huge(*pte));
31 32
32 if (!pmd)
33 goto out;
34
35 pte = (pte_t *) pmd;
36 if (!pte_none(*pte) && !pte_huge(*pte))
37 hugetlb_clean_stale_pgtable(pte);
38out:
39 return pte; 33 return pte;
40} 34}
41 35
@@ -130,17 +124,6 @@ follow_huge_pmd(struct mm_struct *mm, unsigned long address,
130} 124}
131#endif 125#endif
132 126
133void hugetlb_clean_stale_pgtable(pte_t *pte)
134{
135 pmd_t *pmd = (pmd_t *) pte;
136 struct page *page;
137
138 page = pmd_page(*pmd);
139 pmd_clear(pmd);
140 dec_page_state(nr_page_table_pages);
141 page_cache_release(page);
142}
143
144/* x86_64 also uses this file */ 127/* x86_64 also uses this file */
145 128
146#ifdef HAVE_ARCH_HUGETLB_UNMAPPED_AREA 129#ifdef HAVE_ARCH_HUGETLB_UNMAPPED_AREA