mm: gup: add __get_user_pages_unlocked to customize gup_flags

[mirror_ubuntu-artful-kernel.git] / mm / nommu.c

diff --git a/mm/nommu.c b/mm/nommu.c
index bfb690b0f986e54acb0511ac0370104f7f596705..4d1b8a19986770ad56f5ad58dc9d0250745851da 100644 (file)
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -224,9 +224,10 @@ long get_user_pages_locked(struct task_struct *tsk, struct mm_struct *mm,
 }
 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)
+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)
 {
        long ret;
        down_read(&mm->mmap_sem);
@@ -235,6 +236,15 @@ long get_user_pages_unlocked(struct task_struct *tsk, struct mm_struct *mm,
        up_read(&mm->mmap_sem);
        return ret;
 }
+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)
+{
+       return __get_user_pages_unlocked(tsk, mm, start, nr_pages, write,
+                                        force, pages, 0);
+}
 EXPORT_SYMBOL(get_user_pages_unlocked);
 
 /**