diff options
Diffstat (limited to 'mm/mprotect.c')
| -rw-r--r-- | mm/mprotect.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/mm/mprotect.c b/mm/mprotect.c index fded06f923f4..abe2694e13f4 100644 --- a/mm/mprotect.c +++ b/mm/mprotect.c @@ -4,7 +4,7 @@ * (C) Copyright 1994 Linus Torvalds * (C) Copyright 2002 Christoph Hellwig * - * Address space accounting code <alan@redhat.com> + * Address space accounting code <alan@lxorguk.ukuu.org.uk> * (C) Copyright 2002 Red Hat Inc, All Rights Reserved */ @@ -22,6 +22,7 @@ #include <linux/swap.h> #include <linux/swapops.h> #include <linux/mmu_notifier.h> +#include <linux/migrate.h> #include <asm/uaccess.h> #include <asm/pgtable.h> #include <asm/cacheflush.h> @@ -59,8 +60,7 @@ static void change_pte_range(struct mm_struct *mm, pmd_t *pmd, ptent = pte_mkwrite(ptent); ptep_modify_prot_commit(mm, addr, pte, ptent); -#ifdef CONFIG_MIGRATION - } else if (!pte_file(oldpte)) { + } else if (PAGE_MIGRATION && !pte_file(oldpte)) { swp_entry_t entry = pte_to_swp_entry(oldpte); if (is_write_migration_entry(entry)) { @@ -72,9 +72,7 @@ static void change_pte_range(struct mm_struct *mm, pmd_t *pmd, set_pte_at(mm, addr, pte, swp_entry_to_pte(entry)); } -#endif } - } while (pte++, addr += PAGE_SIZE, addr != end); arch_leave_lazy_mmu_mode(); pte_unmap_unlock(pte - 1, ptl); @@ -219,8 +217,8 @@ fail: return error; } -asmlinkage long -sys_mprotect(unsigned long start, size_t len, unsigned long prot) +SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len, + unsigned long, prot) { unsigned long vm_flags, nstart, end, tmp, reqprot; struct vm_area_struct *vma, *prev; |