From: Andy Grover <andy.grover@oracle.com>
Date: Thu, 11 Mar 2010 13:49:57 +0000 (+0000)
Subject: RDS: update copy_to_user state in tcp transport
X-Git-Tag: firefly_0821_release~9833^2~2087^2~775
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=b075cfdb666d6fa90c55c8619186398a3c4fd865;p=firefly-linux-kernel-4.4.55.git

RDS: update copy_to_user state in tcp transport

Other transports use rds_page_copy_user, which updates our
s_copy_to_user counter. TCP doesn't, so it needs to explicity
call rds_stats_add().

Reported-by: Richard Frank <richard.frank@oracle.com>
Signed-off-by: Andy Grover <andy.grover@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/rds/tcp_recv.c b/net/rds/tcp_recv.c
index c00dafffbb5a..40bfcf887465 100644
--- a/net/rds/tcp_recv.c
+++ b/net/rds/tcp_recv.c
@@ -97,6 +97,7 @@ int rds_tcp_inc_copy_to_user(struct rds_incoming *inc, struct iovec *first_iov,
 				goto out;
 			}
 
+			rds_stats_add(s_copy_to_user, to_copy);
 			size -= to_copy;
 			ret += to_copy;
 			skb_off += to_copy;