diff options
Diffstat (limited to 'arch/powerpc/mm/hugepage-hash64.c')
| -rw-r--r-- | arch/powerpc/mm/hugepage-hash64.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/mm/hugepage-hash64.c b/arch/powerpc/mm/hugepage-hash64.c index 01f213d2bcb9..dfbc3b32f09b 100644 --- a/arch/powerpc/mm/hugepage-hash64.c +++ b/arch/powerpc/mm/hugepage-hash64.c @@ -51,6 +51,12 @@ int __hash_page_thp(unsigned long ea, unsigned long access, unsigned long vsid, new_pmd |= _PAGE_DIRTY; } while (!pmd_xchg(pmdp, __pmd(old_pmd), __pmd(new_pmd))); + /* + * Make sure this is thp or devmap entry + */ + if (!(old_pmd & (H_PAGE_THP_HUGE | _PAGE_DEVMAP))) + return 0; + rflags = htab_convert_pte_flags(new_pmd); #if 0 |