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[v9,7/7] libceph: use sendpage_ok() in ceph_tcp_sendpage()

Message ID 20201001075408.25508-8-colyli@suse.de
State Superseded
Headers show
Series Introduce sendpage_ok() to detect misused sendpage in network related drivers | expand

Commit Message

Coly Li Oct. 1, 2020, 7:54 a.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>
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(-)
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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;
 		sendpage = sock_no_sendpage;