From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751537AbbEGMzB (ORCPT ); Thu, 7 May 2015 08:55:01 -0400 Received: from mga09.intel.com ([134.134.136.24]:13712 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750780AbbEGMy5 (ORCPT ); Thu, 7 May 2015 08:54:57 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.13,384,1427785200"; d="scan'208";a="490564508" From: Tomas Winkler To: gregkh@linuxfoundation.org Cc: arnd@arndb.de, linux-kernel@vger.kernel.org, Alexander Usyskin , Tomas Winkler Subject: [char-misc-next 02/11] mei: request autosuspend at the end of write Date: Thu, 7 May 2015 15:53:59 +0300 Message-Id: <1431003248-3164-2-git-send-email-tomas.winkler@intel.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1431003248-3164-1-git-send-email-tomas.winkler@intel.com> References: <1431003248-3164-1-git-send-email-tomas.winkler@intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Alexander Usyskin On longer non-blocking write might not complete at the end of autosuspend expiration, therefore we request autosuspend again on the write completion. Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler --- drivers/misc/mei/client.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c index ce88c2199b2c..7a5a6636f0fd 100644 --- a/drivers/misc/mei/client.c +++ b/drivers/misc/mei/client.c @@ -1459,12 +1459,18 @@ err: */ void mei_cl_complete(struct mei_cl *cl, struct mei_cl_cb *cb) { + struct mei_device *dev = cl->dev; + switch (cb->fop_type) { case MEI_FOP_WRITE: mei_io_cb_free(cb); cl->writing_state = MEI_WRITE_COMPLETE; - if (waitqueue_active(&cl->tx_wait)) + if (waitqueue_active(&cl->tx_wait)) { wake_up_interruptible(&cl->tx_wait); + } else { + pm_runtime_mark_last_busy(dev->dev); + pm_request_autosuspend(dev->dev); + } break; case MEI_FOP_READ: -- 2.1.0