diff options
Diffstat (limited to 'mm/nommu.c')
-rw-r--r-- | mm/nommu.c | 42 |
1 files changed, 18 insertions, 24 deletions
diff --git a/mm/nommu.c b/mm/nommu.c index 92be862c859b..2360546db065 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -184,40 +184,32 @@ finish_or_fault: */ long get_user_pages(struct task_struct *tsk, struct mm_struct *mm, unsigned long start, unsigned long nr_pages, - int write, int force, struct page **pages, + unsigned int gup_flags, struct page **pages, struct vm_area_struct **vmas) { - int flags = 0; - - if (write) - flags |= FOLL_WRITE; - if (force) - flags |= FOLL_FORCE; - - return __get_user_pages(tsk, mm, start, nr_pages, flags, pages, vmas, - NULL); + return __get_user_pages(tsk, mm, start, nr_pages, + gup_flags, pages, vmas, NULL); } EXPORT_SYMBOL(get_user_pages); long get_user_pages_locked(struct task_struct *tsk, struct mm_struct *mm, unsigned long start, unsigned long nr_pages, - int write, int force, struct page **pages, + unsigned int gup_flags, struct page **pages, int *locked) { - return get_user_pages(tsk, mm, start, nr_pages, write, force, + return get_user_pages(tsk, mm, start, nr_pages, gup_flags, pages, NULL); } EXPORT_SYMBOL(get_user_pages_locked); long __get_user_pages_unlocked(struct task_struct *tsk, struct mm_struct *mm, unsigned long start, unsigned long nr_pages, - int write, int force, struct page **pages, - unsigned int gup_flags) + struct page **pages, unsigned int gup_flags) { long ret; down_read(&mm->mmap_sem); - ret = get_user_pages(tsk, mm, start, nr_pages, write, force, - pages, NULL); + ret = __get_user_pages(tsk, mm, start, nr_pages, gup_flags, pages, + NULL, NULL); up_read(&mm->mmap_sem); return ret; } @@ -225,10 +217,10 @@ EXPORT_SYMBOL(__get_user_pages_unlocked); long get_user_pages_unlocked(struct task_struct *tsk, struct mm_struct *mm, unsigned long start, unsigned long nr_pages, - int write, int force, struct page **pages) + struct page **pages, unsigned int gup_flags) { - return __get_user_pages_unlocked(tsk, mm, start, nr_pages, write, - force, pages, 0); + return __get_user_pages_unlocked(tsk, mm, start, nr_pages, + pages, gup_flags); } EXPORT_SYMBOL(get_user_pages_unlocked); @@ -1937,9 +1929,10 @@ void filemap_map_pages(struct vm_area_struct *vma, struct vm_fault *vmf) EXPORT_SYMBOL(filemap_map_pages); static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm, - unsigned long addr, void *buf, int len, int write) + unsigned long addr, void *buf, int len, unsigned int gup_flags) { struct vm_area_struct *vma; + int write = gup_flags & FOLL_WRITE; down_read(&mm->mmap_sem); @@ -1974,14 +1967,14 @@ static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm, * @addr: start address to access * @buf: source or destination buffer * @len: number of bytes to transfer - * @write: whether the access is a write + * @gup_flags: flags modifying lookup behaviour * * The caller must hold a reference on @mm. */ int access_remote_vm(struct mm_struct *mm, unsigned long addr, - void *buf, int len, int write) + void *buf, int len, unsigned int gup_flags) { - return __access_remote_vm(NULL, mm, addr, buf, len, write); + return __access_remote_vm(NULL, mm, addr, buf, len, gup_flags); } /* @@ -1999,7 +1992,8 @@ int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, in if (!mm) return 0; - len = __access_remote_vm(tsk, mm, addr, buf, len, write); + len = __access_remote_vm(tsk, mm, addr, buf, len, + write ? FOLL_WRITE : 0); mmput(mm); return len; |