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https://github.com/torvalds/linux
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da1661b93b
xprt_sock_sendmsg uses the more efficient iov_iter-enabled kernel socket API, and is a pre-requisite for server send-side support for TLS. Note that svc_process no longer needs to reserve a word for the stream record marker, since the TCP transport now provides the record marker automatically in a separate buffer. The dprintk() in svc_send_common is also removed. It didn't seem crucial for field troubleshooting. If more is needed there, a trace point could be added in xprt_sock_sendmsg(). Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
56 lines
1.7 KiB
C
56 lines
1.7 KiB
C
/******************************************************************************
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(c) 2008 NetApp. All Rights Reserved.
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NetApp provides this source code under the GPL v2 License.
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The GPL v2 license is available at
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http://opensource.org/licenses/gpl-license.php.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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******************************************************************************/
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/*
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* Functions and macros used internally by RPC
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*/
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#ifndef _NET_SUNRPC_SUNRPC_H
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#define _NET_SUNRPC_SUNRPC_H
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#include <linux/net.h>
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/*
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* Header for dynamically allocated rpc buffers.
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*/
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struct rpc_buffer {
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size_t len;
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char data[];
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};
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static inline int sock_is_loopback(struct sock *sk)
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{
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struct dst_entry *dst;
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int loopback = 0;
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rcu_read_lock();
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dst = rcu_dereference(sk->sk_dst_cache);
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if (dst && dst->dev &&
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(dst->dev->features & NETIF_F_LOOPBACK))
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loopback = 1;
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rcu_read_unlock();
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return loopback;
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}
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int rpc_clients_notifier_register(void);
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void rpc_clients_notifier_unregister(void);
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#endif /* _NET_SUNRPC_SUNRPC_H */
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