linux-kernel - [PATCH 4.8 51/92] xprtrdma: use complete() instead complete

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Message-Id: <20161117103226.356879238@linuxfoundation.org>
Date:   Thu, 17 Nov 2016 11:32:24 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Daniel Wagner <daniel.wagner@...-carit.de>,
        Anna Schumaker <Anna.Schumaker@...app.com>,
        Trond Myklebust <trond.myklebust@...marydata.com>,
        Chuck Lever <chuck.lever@...cle.com>,
        linux-nfs@...r.kernel.org, netdev@...r.kernel.org
Subject: [PATCH 4.8 51/92] xprtrdma: use complete() instead complete_all()

4.8-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Daniel Wagner <daniel.wagner@...-carit.de>

commit 5690a22d8612e1788b48b4ea53c59868589cd2db upstream.

There is only one waiter for the completion, therefore there
is no need to use complete_all(). Let's make that clear by
using complete() instead of complete_all().

The usage pattern of the completion is:

waiter context                          waker context

frwr_op_unmap_sync()
  reinit_completion()
  ib_post_send()
  wait_for_completion()

					frwr_wc_localinv_wake()
					  complete()

Signed-off-by: Daniel Wagner <daniel.wagner@...-carit.de>
Cc: Anna Schumaker <Anna.Schumaker@...app.com>
Cc: Trond Myklebust <trond.myklebust@...marydata.com>
Cc: Chuck Lever <chuck.lever@...cle.com>
Cc: linux-nfs@...r.kernel.org
Cc: netdev@...r.kernel.org
Signed-off-by: Anna Schumaker <Anna.Schumaker@...app.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 net/sunrpc/xprtrdma/frwr_ops.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/sunrpc/xprtrdma/frwr_ops.c
+++ b/net/sunrpc/xprtrdma/frwr_ops.c
@@ -329,7 +329,7 @@ frwr_wc_localinv_wake(struct ib_cq *cq,
 	frmr = container_of(cqe, struct rpcrdma_frmr, fr_cqe);
 	if (wc->status != IB_WC_SUCCESS)
 		__frwr_sendcompletion_flush(wc, frmr, "localinv");
-	complete_all(&frmr->fr_linv_done);
+	complete(&frmr->fr_linv_done);
 }
 
 /* Post a REG_MR Work Request to register a memory region