diff mbox series

[v7,6/6] libceph: use sendpage_ok() in ceph_tcp_sendpage()

Message ID 20200818131227.37020-7-colyli@suse.de (mailing list archive)
State Not Applicable
Headers show
Series Introduce sendpage_ok() to detect misused sendpage in network related drivers | expand

Commit Message

Coly Li Aug. 18, 2020, 1:12 p.m. UTC 
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>
Cc: Ilya Dryomov <idryomov@gmail.com>
Cc: Jeff Layton <jlayton@kernel.org>
---
 net/ceph/messenger.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index 27d6ab11f9ee..6a349da7f013 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;