libceph: Remove spurious kunmap() of the zero page
ceph_tcp_sendpage already does the work of mapping/unmapping
the zero page if needed.
Signed-off-by: Benoît Canet <benoit.canet@nodalink.com>
Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index 967080a..38f06a4 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -278,7 +278,6 @@
ceph_msgr_slab_exit();
BUG_ON(zero_page == NULL);
- kunmap(zero_page);
page_cache_release(zero_page);
zero_page = NULL;
}