diff options
Diffstat (limited to 'mm/gup.c')
| -rw-r--r-- | mm/gup.c | 52 |
1 files changed, 26 insertions, 26 deletions
@@ -1615,7 +1615,7 @@ static inline struct page *try_get_compound_head(struct page *page, int refs) #ifdef CONFIG_ARCH_HAS_PTE_SPECIAL static int gup_pte_range(pmd_t pmd, unsigned long addr, unsigned long end, - int write, struct page **pages, int *nr) + unsigned int flags, struct page **pages, int *nr) { struct dev_pagemap *pgmap = NULL; int nr_start = *nr, ret = 0; @@ -1633,7 +1633,7 @@ static int gup_pte_range(pmd_t pmd, unsigned long addr, unsigned long end, if (pte_protnone(pte)) goto pte_unmap; - if (!pte_access_permitted(pte, write)) + if (!pte_access_permitted(pte, flags & FOLL_WRITE)) goto pte_unmap; if (pte_devmap(pte)) { @@ -1685,7 +1685,7 @@ pte_unmap: * useful to have gup_huge_pmd even if we can't operate on ptes. */ static int gup_pte_range(pmd_t pmd, unsigned long addr, unsigned long end, - int write, struct page **pages, int *nr) + unsigned int flags, struct page **pages, int *nr) { return 0; } @@ -1768,12 +1768,12 @@ static int __gup_device_huge_pud(pud_t pud, pud_t *pudp, unsigned long addr, #endif static int gup_huge_pmd(pmd_t orig, pmd_t *pmdp, unsigned long addr, - unsigned long end, int write, struct page **pages, int *nr) + unsigned long end, unsigned int flags, struct page **pages, int *nr) { struct page *head, *page; int refs; - if (!pmd_access_permitted(orig, write)) + if (!pmd_access_permitted(orig, flags & FOLL_WRITE)) return 0; if (pmd_devmap(orig)) @@ -1806,12 +1806,12 @@ static int gup_huge_pmd(pmd_t orig, pmd_t *pmdp, unsigned long addr, } static int gup_huge_pud(pud_t orig, pud_t *pudp, unsigned long addr, - unsigned long end, int write, struct page **pages, int *nr) + unsigned long end, unsigned int flags, struct page **pages, int *nr) { struct page *head, *page; int refs; - if (!pud_access_permitted(orig, write)) + if (!pud_access_permitted(orig, flags & FOLL_WRITE)) return 0; if (pud_devmap(orig)) @@ -1844,13 +1844,13 @@ static int gup_huge_pud(pud_t orig, pud_t *pudp, unsigned long addr, } static int gup_huge_pgd(pgd_t orig, pgd_t *pgdp, unsigned long addr, - unsigned long end, int write, + unsigned long end, unsigned int flags, struct page **pages, int *nr) { int refs; struct page *head, *page; - if (!pgd_access_permitted(orig, write)) + if (!pgd_access_permitted(orig, flags & FOLL_WRITE)) return 0; BUILD_BUG_ON(pgd_devmap(orig)); @@ -1881,7 +1881,7 @@ static int gup_huge_pgd(pgd_t orig, pgd_t *pgdp, unsigned long addr, } static int gup_pmd_range(pud_t pud, unsigned long addr, unsigned long end, - int write, struct page **pages, int *nr) + unsigned int flags, struct page **pages, int *nr) { unsigned long next; pmd_t *pmdp; @@ -1904,7 +1904,7 @@ static int gup_pmd_range(pud_t pud, unsigned long addr, unsigned long end, if (pmd_protnone(pmd)) return 0; - if (!gup_huge_pmd(pmd, pmdp, addr, next, write, + if (!gup_huge_pmd(pmd, pmdp, addr, next, flags, pages, nr)) return 0; @@ -1914,9 +1914,9 @@ static int gup_pmd_range(pud_t pud, unsigned long addr, unsigned long end, * pmd format and THP pmd format */ if (!gup_huge_pd(__hugepd(pmd_val(pmd)), addr, - PMD_SHIFT, next, write, pages, nr)) + PMD_SHIFT, next, flags, pages, nr)) return 0; - } else if (!gup_pte_range(pmd, addr, next, write, pages, nr)) + } else if (!gup_pte_range(pmd, addr, next, flags, pages, nr)) return 0; } while (pmdp++, addr = next, addr != end); @@ -1924,7 +1924,7 @@ static int gup_pmd_range(pud_t pud, unsigned long addr, unsigned long end, } static int gup_pud_range(p4d_t p4d, unsigned long addr, unsigned long end, - int write, struct page **pages, int *nr) + unsigned int flags, struct page **pages, int *nr) { unsigned long next; pud_t *pudp; @@ -1937,14 +1937,14 @@ static int gup_pud_range(p4d_t p4d, unsigned long addr, unsigned long end, if (pud_none(pud)) return 0; if (unlikely(pud_huge(pud))) { - if (!gup_huge_pud(pud, pudp, addr, next, write, + if (!gup_huge_pud(pud, pudp, addr, next, flags, pages, nr)) return 0; } else if (unlikely(is_hugepd(__hugepd(pud_val(pud))))) { if (!gup_huge_pd(__hugepd(pud_val(pud)), addr, - PUD_SHIFT, next, write, pages, nr)) + PUD_SHIFT, next, flags, pages, nr)) return 0; - } else if (!gup_pmd_range(pud, addr, next, write, pages, nr)) + } else if (!gup_pmd_range(pud, addr, next, flags, pages, nr)) return 0; } while (pudp++, addr = next, addr != end); @@ -1952,7 +1952,7 @@ static int gup_pud_range(p4d_t p4d, unsigned long addr, unsigned long end, } static int gup_p4d_range(pgd_t pgd, unsigned long addr, unsigned long end, - int write, struct page **pages, int *nr) + unsigned int flags, struct page **pages, int *nr) { unsigned long next; p4d_t *p4dp; @@ -1967,9 +1967,9 @@ static int gup_p4d_range(pgd_t pgd, unsigned long addr, unsigned long end, BUILD_BUG_ON(p4d_huge(p4d)); if (unlikely(is_hugepd(__hugepd(p4d_val(p4d))))) { if (!gup_huge_pd(__hugepd(p4d_val(p4d)), addr, - P4D_SHIFT, next, write, pages, nr)) + P4D_SHIFT, next, flags, pages, nr)) return 0; - } else if (!gup_pud_range(p4d, addr, next, write, pages, nr)) + } else if (!gup_pud_range(p4d, addr, next, flags, pages, nr)) return 0; } while (p4dp++, addr = next, addr != end); @@ -1977,7 +1977,7 @@ static int gup_p4d_range(pgd_t pgd, unsigned long addr, unsigned long end, } static void gup_pgd_range(unsigned long addr, unsigned long end, - int write, struct page **pages, int *nr) + unsigned int flags, struct page **pages, int *nr) { unsigned long next; pgd_t *pgdp; @@ -1990,14 +1990,14 @@ static void gup_pgd_range(unsigned long addr, unsigned long end, if (pgd_none(pgd)) return; if (unlikely(pgd_huge(pgd))) { - if (!gup_huge_pgd(pgd, pgdp, addr, next, write, + if (!gup_huge_pgd(pgd, pgdp, addr, next, flags, pages, nr)) return; } else if (unlikely(is_hugepd(__hugepd(pgd_val(pgd))))) { if (!gup_huge_pd(__hugepd(pgd_val(pgd)), addr, - PGDIR_SHIFT, next, write, pages, nr)) + PGDIR_SHIFT, next, flags, pages, nr)) return; - } else if (!gup_p4d_range(pgd, addr, next, write, pages, nr)) + } else if (!gup_p4d_range(pgd, addr, next, flags, pages, nr)) return; } while (pgdp++, addr = next, addr != end); } @@ -2051,7 +2051,7 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write, if (gup_fast_permitted(start, nr_pages)) { local_irq_save(flags); - gup_pgd_range(start, end, write, pages, &nr); + gup_pgd_range(start, end, write ? FOLL_WRITE : 0, pages, &nr); local_irq_restore(flags); } @@ -2093,7 +2093,7 @@ int get_user_pages_fast(unsigned long start, int nr_pages, int write, if (gup_fast_permitted(start, nr_pages)) { local_irq_disable(); - gup_pgd_range(addr, end, write, pages, &nr); + gup_pgd_range(addr, end, write ? FOLL_WRITE : 0, pages, &nr); local_irq_enable(); ret = nr; } |