diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/hugetlb.c | 30 |
1 files changed, 15 insertions, 15 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index be0e5d0db5ec..f533d336e569 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -3660,7 +3660,20 @@ pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr) return (pte_t *) pmd; } -struct page * +#endif /* CONFIG_ARCH_WANT_GENERAL_HUGETLB */ + +/* + * These functions are overwritable if your architecture needs its own + * behavior. + */ +struct page * __weak +follow_huge_addr(struct mm_struct *mm, unsigned long address, + int write) +{ + return ERR_PTR(-EINVAL); +} + +struct page * __weak follow_huge_pmd(struct mm_struct *mm, unsigned long address, pmd_t *pmd, int write) { @@ -3672,7 +3685,7 @@ follow_huge_pmd(struct mm_struct *mm, unsigned long address, return page; } -struct page * +struct page * __weak follow_huge_pud(struct mm_struct *mm, unsigned long address, pud_t *pud, int write) { @@ -3684,19 +3697,6 @@ follow_huge_pud(struct mm_struct *mm, unsigned long address, return page; } -#else /* !CONFIG_ARCH_WANT_GENERAL_HUGETLB */ - -/* Can be overriden by architectures */ -struct page * __weak -follow_huge_pud(struct mm_struct *mm, unsigned long address, - pud_t *pud, int write) -{ - BUG(); - return NULL; -} - -#endif /* CONFIG_ARCH_WANT_GENERAL_HUGETLB */ - #ifdef CONFIG_MEMORY_FAILURE /* Should be called in hugetlb_lock */ |