NFS: Fix bool initialization/comparison

[sagit-ice-cold/kernel_xiaomi_msm8998.git] / mm / nommu.c

diff --git a/mm/nommu.c b/mm/nommu.c
index 92be862..2360546 100644 (file)
--- 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;