9p: move readn meta-function from client to fs layer

There are a couple of methods in the client code which aren't actually
wire operations.  To keep things organized cleaner, these operations are
being moved to the fs layer.

This patch moves the readn meta-function (which executes multiple wire
reads until a buffer is full) to the fs layer.

Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c
index b6b85cf01e0..24eb01087b6 100644
--- a/fs/9p/v9fs.c
+++ b/fs/9p/v9fs.c
@@ -234,7 +234,7 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
         if (!v9ses->clnt->dotu)
                 v9ses->flags &= ~V9FS_EXTENDED;
 
-        v9ses->maxdata = v9ses->clnt->msize;
+        v9ses->maxdata = v9ses->clnt->msize - P9_IOHDRSZ;
 
         /* for legacy mode, fall back to V9FS_ACCESS_ANY */
         if (!v9fs_extended(v9ses) &&