From 4720b0703a0dfcd6da6a308ea71aaacc55beade7 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Fri, 24 Jun 2016 10:55:49 -0400 Subject: [PATCH] SUNRPC: Micro optimisation for svc_data_ready Don't call svc_xprt_enqueue() if the XPT_DATA flag is already set. Signed-off-by: Trond Myklebust Signed-off-by: J. Bruce Fields --- net/sunrpc/svcsock.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c index 03134708deeb..338d6fe1103d 100644 --- a/net/sunrpc/svcsock.c +++ b/net/sunrpc/svcsock.c @@ -409,8 +409,8 @@ static void svc_data_ready(struct sock *sk) svsk, sk, test_bit(XPT_BUSY, &svsk->sk_xprt.xpt_flags)); svsk->sk_odata(sk); - set_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags); - svc_xprt_enqueue(&svsk->sk_xprt); + if (!test_and_set_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags)) + svc_xprt_enqueue(&svsk->sk_xprt); } }