From ead5e1c26fdcd969cf40c49cb0589d56879d240d Mon Sep 17 00:00:00 2001 From: "J. Bruce Fields" Date: Thu, 13 Oct 2005 16:54:43 -0400 Subject: SUNRPC: Provide a callback to allow free pages allocated during xdr encoding For privacy, we need to allocate pages to store the encrypted data (passed in pages can't be used without the risk of corrupting data in the page cache). So we need a way to free that memory after the request has been transmitted. Signed-off-by: J. Bruce Fields Signed-off-by: Trond Myklebust --- net/sunrpc/xprt.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'net') diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c index 1ba55dc38b7a..6dda3860351f 100644 --- a/net/sunrpc/xprt.c +++ b/net/sunrpc/xprt.c @@ -839,6 +839,7 @@ static void xprt_request_init(struct rpc_task *task, struct rpc_xprt *xprt) req->rq_task = task; req->rq_xprt = xprt; req->rq_xid = xprt_alloc_xid(xprt); + req->rq_release_snd_buf = NULL; dprintk("RPC: %4d reserved req %p xid %08x\n", task->tk_pid, req, ntohl(req->rq_xid)); } @@ -867,6 +868,8 @@ void xprt_release(struct rpc_task *task) xprt->last_used + xprt->idle_timeout); spin_unlock_bh(&xprt->transport_lock); task->tk_rqstp = NULL; + if (req->rq_release_snd_buf) + req->rq_release_snd_buf(req); memset(req, 0, sizeof(*req)); /* mark unused */ dprintk("RPC: %4d release request %p\n", task->tk_pid, req); -- cgit v1.2.3