diff options
| -rw-r--r-- | arch/x86/include/asm/pgtable.h | 5 | ||||
| -rw-r--r-- | mm/huge_memory.c | 8 |
2 files changed, 13 insertions, 0 deletions
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index c48ba055f69..18601c86fab 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -160,6 +160,11 @@ static inline int pmd_trans_huge(pmd_t pmd) { return pmd_val(pmd) & _PAGE_PSE; } + +static inline int has_transparent_hugepage(void) +{ + return cpu_has_pse; +} #endif /* CONFIG_TRANSPARENT_HUGEPAGE */ static inline pte_t pte_set_flags(pte_t pte, pteval_t set) diff --git a/mm/huge_memory.c b/mm/huge_memory.c index b6facc35e89..915809b16ed 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -487,7 +487,15 @@ static int __init hugepage_init(void) int err; #ifdef CONFIG_SYSFS static struct kobject *hugepage_kobj; +#endif + err = -EINVAL; + if (!has_transparent_hugepage()) { + transparent_hugepage_flags = 0; + goto out; + } + +#ifdef CONFIG_SYSFS err = -ENOMEM; hugepage_kobj = kobject_create_and_add("transparent_hugepage", mm_kobj); if (unlikely(!hugepage_kobj)) { |