Merge tag 'gpio-v4.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux...

[karo-tx-linux.git] / mm / memory.c

diff --git a/mm/memory.c b/mm/memory.c
index deb679c31f2ab897cafebf72643aec4f66233308..c387430f06c319d52794152b7e100a66a10c9f68 100644 (file)
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3015,9 +3015,9 @@ static int do_cow_fault(struct mm_struct *mm, struct vm_area_struct *vma,
                } else {
                        /*
                         * The fault handler has no page to lock, so it holds
-                        * i_mmap_lock for write to protect against truncate.
+                        * i_mmap_lock for read to protect against truncate.
                         */
-                       i_mmap_unlock_write(vma->vm_file->f_mapping);
+                       i_mmap_unlock_read(vma->vm_file->f_mapping);
                }
                goto uncharge_out;
        }
@@ -3031,9 +3031,9 @@ static int do_cow_fault(struct mm_struct *mm, struct vm_area_struct *vma,
        } else {
                /*
                 * The fault handler has no page to lock, so it holds
-                * i_mmap_lock for write to protect against truncate.
+                * i_mmap_lock for read to protect against truncate.
                 */
-               i_mmap_unlock_write(vma->vm_file->f_mapping);
+               i_mmap_unlock_read(vma->vm_file->f_mapping);
        }
        return ret;
 uncharge_out: