nommu: use __vfs_read()
... instead of open-coding the call of ->read()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/mm/nommu.c b/mm/nommu.c
index 3fba2dc9..e544508 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -1016,7 +1016,7 @@
* device */
if (!file->f_op->get_unmapped_area)
capabilities &= ~NOMMU_MAP_DIRECT;
- if (!file->f_op->read)
+ if (!(file->f_mode & FMODE_CAN_READ))
capabilities &= ~NOMMU_MAP_COPY;
/* The file shall have been opened with read permission. */
@@ -1240,7 +1240,7 @@
old_fs = get_fs();
set_fs(KERNEL_DS);
- ret = vma->vm_file->f_op->read(vma->vm_file, base, len, &fpos);
+ ret = __vfs_read(vma->vm_file, base, len, &fpos);
set_fs(old_fs);
if (ret < 0)