From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6D7AEC46464 for ; Mon, 13 Aug 2018 11:23:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2AFFB21746 for ; Mon, 13 Aug 2018 11:23:09 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2AFFB21746 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729599AbeHMOEz (ORCPT ); Mon, 13 Aug 2018 10:04:55 -0400 Received: from ozlabs.org ([203.11.71.1]:51401 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728356AbeHMOEz (ORCPT ); Mon, 13 Aug 2018 10:04:55 -0400 Received: by ozlabs.org (Postfix, from userid 1034) id 41ptd45pPpz9sCQ; Mon, 13 Aug 2018 21:23:04 +1000 (AEST) X-powerpc-patch-notification: thanks X-powerpc-patch-commit: 9f65b81f36e31563c5a5e4df3b3b8bc7550b6030 In-Reply-To: <20180430145558.4308-15-npiggin@gmail.com> To: Nicholas Piggin , linuxppc-dev@lists.ozlabs.org From: Michael Ellerman Cc: Jiri Slaby , linux-kernel@vger.kernel.org, Nicholas Piggin , Greg Kroah-Hartman Subject: Re: [14/15] tty: hvc: introduce the hv_ops.flush operation for hvc drivers Message-Id: <41ptd45pPpz9sCQ@ozlabs.org> Date: Mon, 13 Aug 2018 21:23:04 +1000 (AEST) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2018-04-30 at 14:55:57 UTC, Nicholas Piggin wrote: > Use .flush to wait for drivers to flush their console outside of > the spinlock, to reduce lock/irq latencies. > > Flush the hvc console driver after each write, which can help > messages make it out to the console after a crash. > > Signed-off-by: Nicholas Piggin Applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/9f65b81f36e31563c5a5e4df3b3b8b cheers