From ba17686f62db88f6a591121e768a0c83a2a2647d Mon Sep 17 00:00:00 2001 From: Andy Adamson Date: Tue, 26 Jan 2010 21:24:04 -0500 Subject: nfs41 do not allocate unused back channel pages Signed-off-by: Andy Adamson [Trond.Myklebust@netapp.com: moved definition of svc_is_backchannel() into include/linux/sunrpc/bc_xprt.h.] Signed-off-by: Trond Myklebust --- net/sunrpc/svc.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'net/sunrpc') diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c index 538ca433a56c..6dcf8c9c784c 100644 --- a/net/sunrpc/svc.c +++ b/net/sunrpc/svc.c @@ -506,6 +506,10 @@ svc_init_buffer(struct svc_rqst *rqstp, unsigned int size) { unsigned int pages, arghi; + /* bc_xprt uses fore channel allocated buffers */ + if (svc_is_backchannel(rqstp)) + return 1; + pages = size / PAGE_SIZE + 1; /* extra page as we hold both request and reply. * We assume one is at most one page */ -- cgit v1.2.3