vfs: use helpers for calling f_op->{read,write}_iter()

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 78c81e6f5d76..a3145cdff8f2 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1715,6 +1715,18 @@ struct inode_operations {
         int (*set_acl)(struct inode *, struct posix_acl *, int);
 } ____cacheline_aligned;
 
+static inline ssize_t call_read_iter(struct file *file, struct kiocb *kio,
+                                     struct iov_iter *iter)
+{
+        return file->f_op->read_iter(kio, iter);
+}
+
+static inline ssize_t call_write_iter(struct file *file, struct kiocb *kio,
+                                      struct iov_iter *iter)
+{
+        return file->f_op->write_iter(kio, iter);
+}
+
 ssize_t rw_copy_check_uvector(int type, const struct iovec __user * uvector,
                               unsigned long nr_segs, unsigned long fast_segs,
                               struct iovec *fast_pointer,