diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/gup.c | 11 |
1 files changed, 5 insertions, 6 deletions
@@ -252,21 +252,20 @@ void unpin_user_page(struct page *page) } EXPORT_SYMBOL(unpin_user_page); -static inline void compound_range_next(unsigned long i, unsigned long npages, - struct page **list, struct page **head, - unsigned int *ntails) +static inline struct page *compound_range_next(struct page *start, + unsigned long npages, unsigned long i, unsigned int *ntails) { struct page *next, *page; unsigned int nr = 1; - next = *list + i; + next = start + i; page = compound_head(next); if (PageCompound(page) && compound_order(page) >= 1) nr = min_t(unsigned int, page + compound_nr(page) - next, npages - i); - *head = page; *ntails = nr; + return page; } static inline void compound_next(unsigned long i, unsigned long npages, @@ -378,7 +377,7 @@ void unpin_user_page_range_dirty_lock(struct page *page, unsigned long npages, unsigned int ntails; for (index = 0; index < npages; index += ntails) { - compound_range_next(index, npages, &page, &head, &ntails); + head = compound_range_next(page, npages, index, &ntails); if (make_dirty && !PageDirty(head)) set_page_dirty_lock(head); put_compound_head(head, ntails, FOLL_PIN); |