cifs: advertise the right receive buffer size to the server (c4d3396b) · Commits · 戴 / test

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 -- CIFSMaxBufSize minus the 4 byte RFC1001 header. Signed-off-by:

Jeff Layton <jlayton@redhat.com> Signed-off-by:

Steve French <sfrench@us.ibm.com>

fs/cifs/sess.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -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 - 4,
		USHRT_MAX));
		pSMB->req.MaxMpxCount = cpu_to_le16(ses->server->maxReq);
		pSMB->req.VcNumber = get_next_vcnum(ses);

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