提交 ca6ec3bb 编写于 作者: K Kirill A. Shutemov 提交者: Linus Torvalds

arc: handle pgtable_page_ctor() fail

Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com> [for arch/arc bits]
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
上级 3fd681b6
......@@ -105,11 +105,16 @@ static inline pgtable_t
pte_alloc_one(struct mm_struct *mm, unsigned long address)
{
pgtable_t pte_pg;
struct page *page;
pte_pg = __get_free_pages(GFP_KERNEL | __GFP_REPEAT, __get_order_pte());
if (pte_pg) {
memzero((void *)pte_pg, PTRS_PER_PTE * 4);
pgtable_page_ctor(virt_to_page(pte_pg));
if (!pte_pg)
return 0;
memzero((void *)pte_pg, PTRS_PER_PTE * 4);
page = virt_to_page(pte_pg);
if (!pgtable_page_ctor(page)) {
__free_page(page);
return 0;
}
return pte_pg;
......
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