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arc: handle pgtable_page_ctor() fail

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Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com> [for arch/arc bits]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Kirill A. Shutemov 2013-11-14 14:31:25 -08:00 committed by Linus Torvalds
parent 3fd681b68c
commit ca6ec3bbaa
1 changed files with 8 additions and 3 deletions
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11
arch/arc/include/asm/pgalloc.h
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@ -105,11 +105,16 @@ static inline pgtable_t
pte_alloc_one(struct mm_struct *mm, unsigned long address) pte_alloc_one(struct mm_struct *mm, unsigned long address)
{ {
pgtable_t pte_pg; pgtable_t pte_pg;
struct page *page;
pte_pg = __get_free_pages(GFP_KERNEL | __GFP_REPEAT, __get_order_pte()); pte_pg = __get_free_pages(GFP_KERNEL | __GFP_REPEAT, __get_order_pte());
if (pte_pg) { if (!pte_pg)
memzero((void *)pte_pg, PTRS_PER_PTE * 4); return 0;
pgtable_page_ctor(virt_to_page(pte_pg)); 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; return pte_pg;