net/9p: switch the guts of p9_client_{read,write}() to iov_iter

... and have get_user_pages_fast() mapping fewer pages than requested
to generate a short read/write.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/net/9p/transport.h b/include/net/9p/transport.h
index 2a25dec30211..5122b5e40f78 100644
--- a/include/net/9p/transport.h
+++ b/include/net/9p/transport.h
@@ -61,7 +61,7 @@ struct p9_trans_module {
         int (*cancel) (struct p9_client *, struct p9_req_t *req);
         int (*cancelled)(struct p9_client *, struct p9_req_t *req);
         int (*zc_request)(struct p9_client *, struct p9_req_t *,
-                          char *, char *, int , int, int, int);
+                          struct iov_iter *, struct iov_iter *, int , int, int);
 };
 
 void v9fs_register_trans(struct p9_trans_module *m);