diff options
Diffstat (limited to 'arch/powerpc/mm/gup.c')
| -rw-r--r-- | arch/powerpc/mm/gup.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/powerpc/mm/gup.c b/arch/powerpc/mm/gup.c index 4b921affa49..223a255545f 100644 --- a/arch/powerpc/mm/gup.c +++ b/arch/powerpc/mm/gup.c @@ -66,9 +66,15 @@ static int gup_pmd_range(pud_t pud, unsigned long addr, unsigned long end, pmd_t pmd = *pmdp; next = pmd_addr_end(addr, end); - if (pmd_none(pmd)) + /* + * If we find a splitting transparent hugepage we + * return zero. That will result in taking the slow + * path which will call wait_split_huge_page() + * if the pmd is still in splitting state + */ + if (pmd_none(pmd) || pmd_trans_splitting(pmd)) return 0; - if (pmd_huge(pmd)) { + if (pmd_huge(pmd) || pmd_large(pmd)) { if (!gup_hugepte((pte_t *)pmdp, PMD_SIZE, addr, next, write, pages, nr)) return 0; |