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Diffstat (limited to 'arch/sparc/mm/gup.c')
-rw-r--r--arch/sparc/mm/gup.c45
1 files changed, 1 insertions, 44 deletions
diff --git a/arch/sparc/mm/gup.c b/arch/sparc/mm/gup.c
index d809099ffd47..f80cfc64c55b 100644
--- a/arch/sparc/mm/gup.c
+++ b/arch/sparc/mm/gup.c
@@ -103,45 +103,6 @@ static int gup_huge_pmd(pmd_t *pmdp, pmd_t pmd, unsigned long addr,
return 1;
}
-static int gup_huge_pud(pud_t *pudp, pud_t pud, unsigned long addr,
- unsigned long end, int write, struct page **pages,
- int *nr)
-{
- struct page *head, *page;
- int refs;
-
- if (!(pud_val(pud) & _PAGE_VALID))
- return 0;
-
- if (write && !pud_write(pud))
- return 0;
-
- refs = 0;
- page = pud_page(pud) + ((addr & ~PUD_MASK) >> PAGE_SHIFT);
- head = compound_head(page);
- do {
- VM_BUG_ON(compound_head(page) != head);
- pages[*nr] = page;
- (*nr)++;
- page++;
- refs++;
- } while (addr += PAGE_SIZE, addr != end);
-
- if (!page_cache_add_speculative(head, refs)) {
- *nr -= refs;
- return 0;
- }
-
- if (unlikely(pud_val(pud) != pud_val(*pudp))) {
- *nr -= refs;
- while (refs--)
- put_page(head);
- return 0;
- }
-
- return 1;
-}
-
static int gup_pmd_range(pud_t pud, unsigned long addr, unsigned long end,
int write, struct page **pages, int *nr)
{
@@ -180,11 +141,7 @@ static int gup_pud_range(pgd_t pgd, unsigned long addr, unsigned long end,
next = pud_addr_end(addr, end);
if (pud_none(pud))
return 0;
- if (unlikely(pud_large(pud))) {
- if (!gup_huge_pud(pudp, pud, addr, next,
- write, pages, nr))
- return 0;
- } else if (!gup_pmd_range(pud, addr, next, write, pages, nr))
+ if (!gup_pmd_range(pud, addr, next, write, pages, nr))
return 0;
} while (pudp++, addr = next, addr != end);