[PATCH] cifs: advertise the right receive buffer size to the server

From: Jeff Layton <jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
To: smfrench-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
Cc: linux-cifs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [PATCH] cifs: advertise the right receive buffer size to the server
Date: Tue, 21 Jun 2011 08:06:44 -0400	[thread overview]
Message-ID: <1308658004-14725-1-git-send-email-jlayton@redhat.com> (raw)

Currently, we mirror the same size back to the server that it sends us.
That makes little sense. Instead we should be sending the server the
maximum buffer size that we can handle.

Signed-off-by: Jeff Layton <jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
---
 fs/cifs/sess.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index 3892ab8..855c777 100644
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -124,7 +124,8 @@ static __u32 cifs_ssetup_hdr(struct cifs_ses *ses, SESSION_SETUP_ANDX *pSMB)
 	/*	that we use in next few lines                               */
 	/* Note that header is initialized to zero in header_assemble */
 	pSMB->req.AndXCommand = 0xFF;
-	pSMB->req.MaxBufferSize = cpu_to_le16(ses->server->maxBuf);
+	pSMB->req.MaxBufferSize = cpu_to_le16(min_t(u32, CIFSMaxBufSize,
+						USHRT_MAX));
 	pSMB->req.MaxMpxCount = cpu_to_le16(ses->server->maxReq);
 	pSMB->req.VcNumber = get_next_vcnum(ses);
 
-- 
1.7.5.4
