Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
From:   Coly Li <colyli@suse.de>
To:     linux-block@vger.kernel.org, linux-nvme@lists.infradead.org,
        netdev@vger.kernel.org, open-iscsi@googlegroups.com,
        linux-scsi@vger.kernel.org, ceph-devel@vger.kernel.org
Cc:     linux-kernel@vger.kernel.org, Coly Li <colyli@suse.de>,
        Jeff Layton <jlayton@kernel.org>,
        Ilya Dryomov <idryomov@gmail.com>
Subject: [PATCH v9 7/7] libceph: use sendpage_ok() in ceph_tcp_sendpage()
Date:   Thu,  1 Oct 2020 15:54:08 +0800
Message-Id: <20201001075408.25508-8-colyli@suse.de>
In-Reply-To: <20201001075408.25508-1-colyli@suse.de>
References: <20201001075408.25508-1-colyli@suse.de>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

In libceph, ceph_tcp_sendpage() does the following checks before handle
the page by network layer's zero copy sendpage method,
	if (page_count(page) >= 1 && !PageSlab(page))

This check is exactly what sendpage_ok() does. This patch replace the
open coded checks by sendpage_ok() as a code cleanup.

Signed-off-by: Coly Li <colyli@suse.de>
Acked-by: Jeff Layton <jlayton@kernel.org>
Cc: Ilya Dryomov <idryomov@gmail.com>
---
 net/ceph/messenger.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index bdfd66ba3843..d4d7a0e52491 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -575,7 +575,7 @@ static int ceph_tcp_sendpage(struct socket *sock, struct page *page,
 	 * coalescing neighboring slab objects into a single frag which
 	 * triggers one of hardened usercopy checks.
 	 */
-	if (page_count(page) >= 1 && !PageSlab(page))
+	if (sendpage_ok(page))
 		sendpage = sock->ops->sendpage;
 	else
 		sendpage = sock_no_sendpage;
-- 
2.26.2